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Articles 6091 - 6120 of 27415
Full-Text Articles in Engineering
Development Of Halalan Tayyiban Plant-Based Cheese Formulations, Hasna B. Mazalana, Mas M. Rambli, Syazana A. Lim, Beston F. Nore
Development Of Halalan Tayyiban Plant-Based Cheese Formulations, Hasna B. Mazalana, Mas M. Rambli, Syazana A. Lim, Beston F. Nore
ASEAN Journal on Science and Technology for Development
The worldwide cheese production is dominated by animal milk sources with various industrial procedures, including animal rennet. There is a need to diversify the animal-based dairy products into plant-based one, not only to nurture the halalan tayyiban concept for Muslims, but also to accommodate the dietary restriction of some consumers. The objective of this work is to formulate a cheese type derived from plant-based milk with permissible ingredients to create a product for Muslim and non-Muslim consumers. In this study, we explored the use of conventional and non-conventional cheese-making procedures. A total of four experimental formulations (EF1-4) combinations were conducted …
Unveiling The Antioxidant Properties Of Stenochlaena Palustris And Diplazium Esculentum Through Time-Dependent Analysis, Nurnajiihah A. Samad, Hasna B. Mazalan, Hazimah Sharifulazar, Aida M. Basri, Masayoshi Arai
Unveiling The Antioxidant Properties Of Stenochlaena Palustris And Diplazium Esculentum Through Time-Dependent Analysis, Nurnajiihah A. Samad, Hasna B. Mazalan, Hazimah Sharifulazar, Aida M. Basri, Masayoshi Arai
ASEAN Journal on Science and Technology for Development
Medicinal plants are generally known for its health benefits and there has been ongoing research to gather evidence on potential plants that could exhibit antioxidant activities. In this study, we explored underutilised local medicinal plants which are Stenochlaena palustris and Diplazium esculentum, locally known as ‘Lemiding’ and ‘Pakis’, respectively. The aim was to determine the effect of extraction time on phytochemical contents, antioxidant activities and total phenolic content (TPC) of the two plant species. Maceration method was used to extract the compounds from leaves of the plant in distilled water at different durations of extraction i.e. 2 hours, 4 hours, …
Nanocellulose Synthesized From Sugarcane Bagasse (S. Officinarum) Via Alkaline-Mechanical Process And Its Characterization, Wafiqah Daim, Hiroshi Uyama, Syazana Abdullah Lim
Nanocellulose Synthesized From Sugarcane Bagasse (S. Officinarum) Via Alkaline-Mechanical Process And Its Characterization, Wafiqah Daim, Hiroshi Uyama, Syazana Abdullah Lim
ASEAN Journal on Science and Technology for Development
Nanocellulose is one of many promising materials that have garnered the attention of researchers and industries. In this study, sugarcane bagasse (S. officinarum) was used to synthesize cellulose nanofiber (SB-CNF) via an alkaline-mechanical process. A comprehensive characterization of SB-CNF was conducted to explore its morphology via scanning electron microscopy (SEM) and dynamic force microscopy (DFM), assess its functional groups using Fourier transform infrared spectroscopy (FT-IR), analyze its thermal properties through thermogravimetric analysis (TGA), and lastly, evaluate light absorbance and transmittance using a UV-VIS spectrophotometer. Our findings revealed that SB-CNF resulted in a highly intertwined nanofiber structure within a nano-scale dimension. …
Innovative Approaches And Challenges In Brunei's Agricultural Management, Nuramalina Manshor, Ulaganathan Subramanian
Innovative Approaches And Challenges In Brunei's Agricultural Management, Nuramalina Manshor, Ulaganathan Subramanian
ASEAN Journal on Science and Technology for Development
The management and development in agriculture attract agricultural economic science for the pricing, business, farm policy, and financial knowledge. It conjointly draws on plant and animal sciences for soil, seed and fertilizer information, weed control, insect management, and rationing and breeding; agricultural engineering knowledge for farmhouses, vehicles, irrigation, field drying, drainage, and management of erosions; and data on human behavior in Science and Social Science.
Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan
Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan
ASEAN Journal on Science and Technology for Development
Adsorption by activated carbon is an effective method of dye removal. However, due to high production and regeneration costs of activated carbon, various studies on low-cost adsorbents have been conducted. Agricultural waste such as rice husk (RH) is seen to be a good adsorbent for dye removal. Moreover, rice husk is readily available. In this study, rice husk-based adsorbents were prepared by chemical and thermal treatments. Standard curve (colour vs absorbance) for Direct Blue 86 (DB 86) was prepared to determine the concentration of dye before and after adsorption. The adsorption potential of the adsorbent for textile dye DB 86 …
The Conceptual Review On The Effect Of Corporate Governance Monitoring Mechanisms On Tax Avoidance, Eveana Mosuin, Nor Balkish Zakaria, Yvonne Joseph Ason
The Conceptual Review On The Effect Of Corporate Governance Monitoring Mechanisms On Tax Avoidance, Eveana Mosuin, Nor Balkish Zakaria, Yvonne Joseph Ason
ASEAN Journal on Science and Technology for Development
Taxes are the primary source of revenue for many nations in order to increase budget revenues and fund national development. Taxation serves multiple purposes because it can positively impact a nation's investment, education, social and economic development. However, tax authorities require assistance with the issue of tax non-compliance, which impedes tax administration and collection. One of the categories of tax non-compliance is tax avoidance, which is one of the company's strategies for legally reducing its tax burden by exploiting loopholes in tax regulations to minimise tax liability. Tax avoidance is when a company follows a particular tax strategy in the …
The Contribution Of Outcome Expectation In Water Saving Among Malaysians For Sustainable Living Standard, Ganesh. R, Vxynette Fiorna, Ammar Abdulaziz Al-Talib, Haslinda. A, Elango Natarajan
The Contribution Of Outcome Expectation In Water Saving Among Malaysians For Sustainable Living Standard, Ganesh. R, Vxynette Fiorna, Ammar Abdulaziz Al-Talib, Haslinda. A, Elango Natarajan
ASEAN Journal on Science and Technology for Development
Saving water is an essential component of a higher level of living for each individual in any Nation. The current and next generation will be greatly impacted by attitudes and emotional aspects of social cognitive behaviour. This empirical investigation was carried out in Malaysia. To determine their attitude and behaviour, a convenience sampling method was applied to a sample size of 265 individuals. It was discovered that outcome expectancy significantly improves water saving. Observed self-efficacy, personal elements, and environmental elements all impacted the outcome expectancy. The model evaluation showed that the adjusted R2 was 0.78, or about 78% of the …
Corrosion Behavior Of Ysz And Ysz/Nico Coatings On Inconel 625 Exposed Alkali Chlorides, Resetiana Dwi Desiati, Eni Sugiarti, Bambang Hermanto, Gerald Ensang Timuda, Hubby Izzuddin, Fraya Aulia Salsabilla, Anawati Anawati
Corrosion Behavior Of Ysz And Ysz/Nico Coatings On Inconel 625 Exposed Alkali Chlorides, Resetiana Dwi Desiati, Eni Sugiarti, Bambang Hermanto, Gerald Ensang Timuda, Hubby Izzuddin, Fraya Aulia Salsabilla, Anawati Anawati
Journal of Metals, Materials and Minerals
Alkali chloride attack on boiler pipe walls is considered the main problem of corrosion in the waste-to-energy (WTE) industry, even though uses superalloy. Electrophoretic deposited (EPD) yttria-stabilized zirconia (YSZ) coating is carried out to protect the Inconel 625 substrate. YSZ is deposited directly both on the Inconel 625 substrate and NiCo-Inconel 625. Corrosion resistance was conducted using the 3.5% NaCl electrochemical test and the hot salt corrosion test at 600°C in alkaline salt media such as NaCl, KCl, and CaCl2. The potentiodynamic polarization curve shows that the YSZ coating deposited on the substrate (single-layer) has a corrosion rate of 0.065 …
Study Of Titanium Alloy Ti–Al–Zr–Nb–V During Heating Under Deformation And Its Phase Transformation Features, Aidar Kenzhegulov, Axaule Mamaeva, Aleksander Panichkin, Akerke Imbarova, Balzhan Kshibekova, Rashida Aubakirova, Nazgul Toiynbaeva
Study Of Titanium Alloy Ti–Al–Zr–Nb–V During Heating Under Deformation And Its Phase Transformation Features, Aidar Kenzhegulov, Axaule Mamaeva, Aleksander Panichkin, Akerke Imbarova, Balzhan Kshibekova, Rashida Aubakirova, Nazgul Toiynbaeva
Journal of Metals, Materials and Minerals
An alloy based on Ti–Al–Zr–Nb–V was prepared and its deformation behavior at elevated temperatures was studied. The microstructure and phase of the alloys were characterized by optical microscopy, scanning electron microscopy, thermal analysis, and mechanical testing. The results showed that the Ti–Al–Zr–Nb–V alloy, when stretched, exhibits a superplasticity effect in the range of 975℃ to 1100℃, with an elongation of up to 400%. It was found that superplasticity develops in the temperature region of the α+β→β transition and is accompanied by a change in grain size and redistribution of alloying elements among phases.
One-Pot Microwave-Assisted Approach Of Polydiacetylene/Zinc Oxide Nanocomposite For Reversible Thermochromic, Chanita Khanantong, Thanutpon Srinopkun, Thitirut Boonmak, Jintana Siriboon
One-Pot Microwave-Assisted Approach Of Polydiacetylene/Zinc Oxide Nanocomposite For Reversible Thermochromic, Chanita Khanantong, Thanutpon Srinopkun, Thitirut Boonmak, Jintana Siriboon
Journal of Metals, Materials and Minerals
This study introduces a new technique to fabricate the reversible poly(PCDA/ZnO) nanocomposites thermochromism. Our preparation process is the solution-mixing method, which is supported by microwave synthesis time instead of ultrasonic bath or stirrer. The presence of ethanol molecules in aqueous media in the solution-mixing method induces dipolar polarization. In addition, the presence of Zn2+ leaking out of the ZnO can produce ionic polarization. These factors affect the shape of poly(PCDA/ZnO) nanocomposites based on their thermochromic properties. The optical properties of poly(PCDA/ZnO) nanocomposite were determined through UV-Vis absorption spectroscopy. The morphology of this nanocomposite was examined by scanning electron microscopy, and …
Green Synthesis Of Carbon Dots From Mangosteen Peel For Fluorescent Cancer Cells, Supaluck Amloy, Tanachporn Lukprang, Monthon Lertworapreecha, Pakorn Preechaburana
Green Synthesis Of Carbon Dots From Mangosteen Peel For Fluorescent Cancer Cells, Supaluck Amloy, Tanachporn Lukprang, Monthon Lertworapreecha, Pakorn Preechaburana
Journal of Metals, Materials and Minerals
Recently, carbon dots (CDs) have received significant attention owing to their outstanding optical properties, good solubility, and low toxicity. In this research, CDs were synthesized by a hydrothermal method based on an environmentally friendly and straightforward strategy, using only mangosteen peel and deionized water. The synthesized CDs had an average size of 3.09 ± 0.38 nm. The absorbance spectrum peak for the CDs was seen at 282 nm, and the central wavelength of fluorescence emission was observed at 433 nm under an excitation wavelength of 355 nm. An aqueous solution of CDs exhibited bright green fluorescence when observed with the …
Fabrication Of Porous Geopolymers Utilizing Aluminum Wastes As Foaming Agent, Siriwan Chokkha, Jiratchaya Ayawanna, Anurat Poowancum, Thanasak Singlaem, Pusit Mitsomwang
Fabrication Of Porous Geopolymers Utilizing Aluminum Wastes As Foaming Agent, Siriwan Chokkha, Jiratchaya Ayawanna, Anurat Poowancum, Thanasak Singlaem, Pusit Mitsomwang
Journal of Metals, Materials and Minerals
Porous geopolymers (PG) are attractive due to their simple fabrication and diverse applications. This work presents a method for fabricating PG by using aluminum salt slag (ASS) as a foaming agent and metakaolin (MK) as the precursor. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) are used as alkali activator solutions. The results show that the PG is fabricated by using the sequence mixing method. ASS was milled to a size of 4 µm, then mixed with an NaOH solution for 30 min. After that, MK and Na2SiO3 solution were added. The weight ratio of Na2SiO3/NaOH and solid/liquid was 2.0 and …
Influence Of Annealing Times For W Films On The Structure And Electrochromic Properties Of Anodized Wo3 Films, Watcharaporn Thongjoon, Kamon Aiempanakit, Montri Aiempanakit, Chantana Aiempanakit
Influence Of Annealing Times For W Films On The Structure And Electrochromic Properties Of Anodized Wo3 Films, Watcharaporn Thongjoon, Kamon Aiempanakit, Montri Aiempanakit, Chantana Aiempanakit
Journal of Metals, Materials and Minerals
WO3 films were prepared from annealed W films by anodization and annealing at 450℃ for 1 h. The sputtered W films were annealed before anodization at different times for 0.5 h to 2 h, followed by immediate removal from the furnace (quenching) or slow cooling (cool-down). The WO3 films exhibited a different preferred orientation between the (200) and (222) planes. The morphological structure of the WO3 films depended on the annealing time and cooling features of the W films. The WO3 films for the cool-down condition had smaller grains and more pores than the quenching condition. The WO3 films prepared …
Fabrication And Characterization Of Sb-Doped Mxene Prepared By Hydrothermal Method For Use As A Sensing Electrode For Heavy Metal Detection, Siranaree Phoohadsuan, Thitima Maturos Daniels, Mati Horprathum, Nichaphat Thongsai, Eakkasit Punrat
Fabrication And Characterization Of Sb-Doped Mxene Prepared By Hydrothermal Method For Use As A Sensing Electrode For Heavy Metal Detection, Siranaree Phoohadsuan, Thitima Maturos Daniels, Mati Horprathum, Nichaphat Thongsai, Eakkasit Punrat
Journal of Metals, Materials and Minerals
MXene, a two-dimensional material with favorable physicochemical characteristics, has demonstrated outstanding efficiency in a wide range of applications because of their superior properties, such as higher surface area and conductivity, and facile surface modification. In this study, antimony (Sb) doped MXenes were synthesized via a simple hydrothermal method, employing various Sb concentrations ranging from 5%w/w to 25%w/w. The successful preparation of the Sb-doped MXene (Sb@MXene) was confirmed by an X-ray diffraction (XRD) method. Physical morphologies examined through field-emission scanning electron microscopy (FE-SEM) depict the presence of Sb nanoparticles with the size of about 80 nm on the surface and interlayer …
Realizing Fast Plating/Stripping Of High-Performance Zn Metal Anode With A Low Zn Loading, Zhuo Li, Tamene Tadesse Beyene, Kai Zhu, Dianxue Cao
Realizing Fast Plating/Stripping Of High-Performance Zn Metal Anode With A Low Zn Loading, Zhuo Li, Tamene Tadesse Beyene, Kai Zhu, Dianxue Cao
Journal of Metals, Materials and Minerals
Zn metal batteries and capacitors (ZMBs/ZMCs) are gaining significant attention due to their low cost, high safety, and high theoretical capacity. However, the low utilization of Zn metal decreases the coulombic efficiency. Here, we present a novel approach to enhance the conductivity of host materials by utilizing a 3D conductive structural network of copper mesh. The 3D copper mesh serves as a high-conductive matrix and additionally coating it with Zn serves as a Zn source. Finally, a flexible reduced graphene oxide (rGO) was deposited on the Zn-coated copper mesh as an anode protective layer. The conductive copper mesh renders a …
The Effects Of The Crystallinity Index Of Cellulose On The Flexural Properties Of Hybrid-Cellulose Epoxy Composites, Nathawat Poopakdee, Warut Thammawichai
The Effects Of The Crystallinity Index Of Cellulose On The Flexural Properties Of Hybrid-Cellulose Epoxy Composites, Nathawat Poopakdee, Warut Thammawichai
Journal of Metals, Materials and Minerals
This work investigated the effects of the crystallinity index (CI) of cellulose on the flexural properties of hybrid-cellulose epoxy composites. The CI was varied by combining cellulose microfibrils (CMF) and microcrystalline cellulose (MCC), extracted from coir and eucalyptus, respectively, in various mixing ratios. From the XRD analysis, it was shown that the CI values and the CMF/MCC content follow a parabolic-fitting pattern, reaching a maximum value of 82.06% for the CMF/MCC of 30/70. The composites with cellulose of different CI values were fabricated and the flexural properties were measured. The results showed that the flexural strength increased as the CI …
Maintenance Of The Deteriorated Infrastructure In Thailand, Pakawat Sancharoen, Sothyrak Rath, Dong Viet Phuong Tran, Pitichon Klomjit, Somnuk Tangtermsirikul
Maintenance Of The Deteriorated Infrastructure In Thailand, Pakawat Sancharoen, Sothyrak Rath, Dong Viet Phuong Tran, Pitichon Klomjit, Somnuk Tangtermsirikul
Journal of Metals, Materials and Minerals
Infrastructure has been aged and deteriorated by various causes. Maintenance of its safety and serviceability are crucial and many countries have raised concerns about the existing infrastructure. Infrastructure in Thailand has been also aged. This paper shows results of studies relating to maintenance of infrastructure in Thailand. Inspection of the existing infrastructure in Bangkok was conducted by both visual and non-destructive testing (NDT) showing many deteriorations, and damages. Most of the deteriorations are caused by low concrete covering depth and water leakage. While in marine environment, chloride attack is the main cause. Evaluation criteria for NDT results are studied and …
Properties Of Acrylonitrile-Butadiene-Styrene Nanocomposites Adding Ammonia Plasma Treated Carbon Nanotubes/Graphene Nanoplatelets For Electronic Discharge Application, Sorawit Duangsripat, Pajaera Patanathabutr, Nattakarn Hongsriphan
Properties Of Acrylonitrile-Butadiene-Styrene Nanocomposites Adding Ammonia Plasma Treated Carbon Nanotubes/Graphene Nanoplatelets For Electronic Discharge Application, Sorawit Duangsripat, Pajaera Patanathabutr, Nattakarn Hongsriphan
Journal of Metals, Materials and Minerals
Carbon-based nanofillers have been applied in various products, especially electrical and electronic products. It could be used to modify electrical conductivity of the integrated circuit (IC) polymeric packaging in order to prevent electrostatic discharge that would damage electronic integrity. This research reported the influence of ammonia plasma functionalization and its concentration on electrical, mechanical and thermal properties of Acrylonitrile-Butadiene-Styrene (ABS) reinforced with a mixture of CNTs and GNPs. Nanocomposites were successfully compounded using a twin-screw extruder, which firstly the masterbatch was prepared and then mixed with neat polymer into various concentrations (2 wt%, 4 wt%, 6 wt%, and 8 wt%). …
Adhesive Wear Characteristics Of Mono And Hybrid Cf/Ep Composite With Nano-Hap Filler, Divya Gurkar Somashekar, Naveena Bettahalli Eswaregowda, Suresha Bheemappa
Adhesive Wear Characteristics Of Mono And Hybrid Cf/Ep Composite With Nano-Hap Filler, Divya Gurkar Somashekar, Naveena Bettahalli Eswaregowda, Suresha Bheemappa
Journal of Metals, Materials and Minerals
Composites materials with more than two reinforcing materials are called hybrid composites. Tailoring the composites by hybridizing fillers, fibers and matrix will yield better properties compared to mono-composites. Hence, an effort has been made in the current research work to develop carbon fiber epoxy hybrid nanocomposites, comprising different weight percentage of Hydroxyapatite (HAP) to evaluate the potential effects on tribological properties using two body sliding wear method. Taguchi technique (L27 array) has been adopted to investigate the impact of parameters such as filler inclusion (0%, 1.5%, and 3%), load (30, 45, and 60 N), sliding velocity (1, 2, and 3 …
Effects Of Oleylamine Concentration On The Synthesis Of Formamidinium Lead Halide Perovskite Nanocrystals And Physical-Optical Properties, Kunlasatree Kunsaeng, Yingyot Infahsaeng
Effects Of Oleylamine Concentration On The Synthesis Of Formamidinium Lead Halide Perovskite Nanocrystals And Physical-Optical Properties, Kunlasatree Kunsaeng, Yingyot Infahsaeng
Journal of Metals, Materials and Minerals
Perovskite nanocrystals (PNCs) has been extensively interested owing to their distinctive properties for applications in optoelectronics and energy harvesting. The properties of these nanocrystals, including optical and energy characteristics, can be tuned by adjusting the particle size using different synthesis techniques. Among these, the ligand-assisted reprecipitation (LARP) method has become popular for its simplicity and scalability. Nevertheless, it is vital to understand that the growth of PNCs is extremely sensitive to the conditions of synthesis, highlighting the importance of recognizing the factors that limit the formation and properties of PNCs. In this study, PNCs based on formamidinium lead bromide (FAPbBr3) …
Synthesis And Visible Light Photocatalytic Activity Of Silver Zinc Phosphates, Rina Kanemoto, Hiroaki Onoda
Synthesis And Visible Light Photocatalytic Activity Of Silver Zinc Phosphates, Rina Kanemoto, Hiroaki Onoda
Journal of Metals, Materials and Minerals
Currently, photocatalytic materials in common use mainly use ultraviolet light, but the amount of ultraviolet light contained in sunlight is limited and their energy efficiency is known to be low. Therefore, there is a need for a compound that shows photocatalytic activity in visible light, and silver phosphate matches this requirement, but it is relatively expensive. In this study, photocatalytic materials that could use visible light and were relatively inexpensive were attempted to be prepared. Specifically, samples were prepared by changing the silver/zinc molar ratio (Ag/Zn = 100/0, 90/10, 80/20, 70/30, 60/40), and each sample was evaluated and examined from …
Fabrication And Characterization Of Zinc Anode On Nickel Conductive Cloth For High-Performance Zinc Ion Battery Applications, Tanapoom Mawintorn, Kittima Lolupiman, Napat Kiatwisarnkij, Pattaraporn Woottapanit, Manickavasakam Karnan, Suwimon Saneewong Na Ayuttay, Xinyu Zhang, Panyawat Wangyao, Jiaqian Qin
Fabrication And Characterization Of Zinc Anode On Nickel Conductive Cloth For High-Performance Zinc Ion Battery Applications, Tanapoom Mawintorn, Kittima Lolupiman, Napat Kiatwisarnkij, Pattaraporn Woottapanit, Manickavasakam Karnan, Suwimon Saneewong Na Ayuttay, Xinyu Zhang, Panyawat Wangyao, Jiaqian Qin
Journal of Metals, Materials and Minerals
The development of advanced materials for energy storage is critical to addressing global energy challenges. Zinc-ion batteries offer a promising solution due to their safety, cost-effectiveness, and environmental friendliness. In this study, we enhanced the conductivity of cotton by coating it with electroless nickel, followed by zinc electroplating, to create a flexible material suitable for zinc-ion battery applications. Cotton was coated with electroless nickel at temperatures ranging from 40°C to 60°C for 1 min to 13 min. Subsequently, zinc electroplating was performed with current densities of 0.02 A·cm‒2 for 60 min, 0.03 A·cm‒2 for 40 min, and 0.04 A·cm‒2 for …
Tin, Silver, And Copper Sulfate Compound Extraction From Lead-Free Solder Dross By Reduction With Petroleum Coke, Electrorefining, Cementation, And Crystallization Process, Sakhob Khumkoa, Natthicha Ma-Ud, Tapany Patcharawit, Tanongsak Yingnakorn
Tin, Silver, And Copper Sulfate Compound Extraction From Lead-Free Solder Dross By Reduction With Petroleum Coke, Electrorefining, Cementation, And Crystallization Process, Sakhob Khumkoa, Natthicha Ma-Ud, Tapany Patcharawit, Tanongsak Yingnakorn
Journal of Metals, Materials and Minerals
Solder dross, a waste by-product from the electronic component dipping bath, contains significant quantities of valuable metals. This study presents a four-step process for recovering tin, silver, and copper from lead-free Sn-Ag-Cu solder dross. The process involves the initial reduction of the dross using petroleum coke to produce an anode plate, followed by electrorefining to extract tin from the anode plate. Selective leaching of silver and copper from the residual anode slime and cementation techniques are employed to recover silver powder. The rest of the copper solution was used to synthesize copper sulfate crystals. Experimental results demonstrate optimal conditions for …
Optimization Of Ultrasound-Assisted Anthocyanin Extraction From Agricultural Waste Purple Corn Silk For Multifunctional Hemp Finishes, Benjamas Klaykruayat, Nattaya Vuthiganond, Pisutsaran Chitichotpanya
Optimization Of Ultrasound-Assisted Anthocyanin Extraction From Agricultural Waste Purple Corn Silk For Multifunctional Hemp Finishes, Benjamas Klaykruayat, Nattaya Vuthiganond, Pisutsaran Chitichotpanya
Journal of Metals, Materials and Minerals
The utilization of agricultural wastes for textile dyeing has gained popularity due to their safe and environmentally friendly properties, as well as the resource sustainability. Natural dye extraction is usually achieved through solvent extraction, which is time-consuming, requires a lot of solvent, and degrades desired compounds at high temperatures. Thus, this study investigated ultrasound-assisted anthocyanin extraction from agricultural waste purple corn silk as natural functional colorants for hemp finishes, given the numerous health benefits associated with anthocyanin. In order to optimize the extraction processes and evaluate the synergistic impact of these conditions, response surface methodology was implemented. The optimum conditions …
Controlling Titanium Incorporation In Hydrogenated Amorphous Carbon Films Via Closed-Loop Feedback In Reactive High Power Impulse Magnetron Sputtering, Pornthip Ratchayotee, Artit Chingsungnoen, Phitsanu Poolcharuansin
Controlling Titanium Incorporation In Hydrogenated Amorphous Carbon Films Via Closed-Loop Feedback In Reactive High Power Impulse Magnetron Sputtering, Pornthip Ratchayotee, Artit Chingsungnoen, Phitsanu Poolcharuansin
Journal of Metals, Materials and Minerals
A closed-loop feedback approach has been developed to control titanium incorporation in hydrogenated amorphous carbon (a-C:H) films during reactive high-power impulse magnetron sputtering (R-HiPIMS). The average discharge current measured at the magnetron target is used as the primary feedback signal to regulate the target coverage state. Hence, the titanium concentration in the films can be controlled. Significant changes were observed in the film microstructure and properties as the target state evolved with increasing target coverage. This causes the film transition from metallic titanium to a-C:H films with decreasing titanium concentration. For example, the XRD and Raman analyses indicated a microstructural …
In-Situ Embedding Of Nanocylindrical Bi25feo40 Into Scaffold-C3n4 For Enhanced Z-Scheme Photocatalytic Degradation, Yile Wang, Yuhui Ma, Liang Chu, Xing'ao Li
In-Situ Embedding Of Nanocylindrical Bi25feo40 Into Scaffold-C3n4 For Enhanced Z-Scheme Photocatalytic Degradation, Yile Wang, Yuhui Ma, Liang Chu, Xing'ao Li
Journal of Metals, Materials and Minerals
The development of Z-scheme heterojunctions has emerged as an effective approach for boosting the photocatalytic activity. Herein, we fabricated of a direct Z-scheme heterojunction between scaffold-like C3N4 and nanocylindrical Bi25FeO40, which exhibits enhanced photocatalytic activity and dye adsorption capacity. The in-situ embedding of Bi25FeO40 within scaffold C3N4 promotes photogenerated carrier separation, leading to an optimized degradation rate of 0.0205 min−1 and a contaminant removal efficiency of 85.3%. This work paves a new path for the development of high-efficiency photocatalytic degradation.
Investigated The Ion Energy And The Microstructure Properties Of Tetrahedral Amorphous Carbon Film Produced By Pulsed Filtered Cathodic Vacuum Arc Combined With Plasma Biasing Technique, Nopphon Saowiang, Phitsanu Poolcharuansin, Artit Chingsungnoen, Nitisak Pasaja
Investigated The Ion Energy And The Microstructure Properties Of Tetrahedral Amorphous Carbon Film Produced By Pulsed Filtered Cathodic Vacuum Arc Combined With Plasma Biasing Technique, Nopphon Saowiang, Phitsanu Poolcharuansin, Artit Chingsungnoen, Nitisak Pasaja
Journal of Metals, Materials and Minerals
The purpose of this work is to demonstrate that operations using the plasma biasing technique in pulsed filtered cathodic vacuum arc (PFCVA) enable an energy-enhanced in deposition process for the high quality of tetrahedral amorphous carbon (ta-C) thin films (high sp3 content, denser, and very low surface roughness). The effect of anode bias potential on the energy distribution function of C+ ions, including the topography, microstructure, chemical state, and density of ta-C films, was systematically investigated. It was found that the plasma biasing technique can increase the average energy of C+ ions, but nevertheless, the ion …
Single Electrode Mode Triboelectric Nanogenerator For Recognition Of Animal Sounds, Archana Panda, Kunal Kumar Das, Kushal Ruthvik Kaja, Mohamed Belal, Basanta Kumar Panigrahi
Single Electrode Mode Triboelectric Nanogenerator For Recognition Of Animal Sounds, Archana Panda, Kunal Kumar Das, Kushal Ruthvik Kaja, Mohamed Belal, Basanta Kumar Panigrahi
Journal of Metals, Materials and Minerals
This research presents an innovative and sustainable solution by designing triboelectric nanogenerators (TENGs) for energy harvesting. The fabrication process of TENGs includes PDMS and aluminum. The two single electrode mode TENG was designed one is plain PDMS/Al and the other is porous PDMS/Al TENG devices. The porous PDMS/Al TENG device generated a voltage and current of 7 V and 5 nA for 2 cm ´ 2 cm device area. Moreover, the TENG system was employed to successfully charge capacitors, and recognize various animal sounds. This study underscores the promising potential of harvesting energy from body movements and powering of devices, …
Photoluminescent Carbon Nanodots For Artificial Photosynthesis, Rajie A. Medina, Michael E. Franco, Lyn Marie De Juan-Corpuz, Ryan D. Corpuz
Photoluminescent Carbon Nanodots For Artificial Photosynthesis, Rajie A. Medina, Michael E. Franco, Lyn Marie De Juan-Corpuz, Ryan D. Corpuz
Journal of Metals, Materials and Minerals
The emerging field of carbon dots (CDs), a type of carbon nanostructure that has gained significant attention due to its unique properties and potential applications. CDs possess remarkable attributes, including photoluminescence, electrochemical potential, compatibility with living organisms, solubility in water, chemical stability, and versatile surface properties. The chemical structure, particle size, and surface functionalities of CDs all have an impact on their photoluminescent properties, which are the focus of this review. The photoluminescence mechanism in CDs is discussed, highlighting their amorphous structure, and comparing them to graphene quantum dots. The paper delves into the application of CDs in artificial photosynthesis, …
Composition-Driven Phase Coexistence And Functional Properties Of The (1-X)Bzt-(X)Bct Ceramics Near The Phase Convergence Region, Jirapa Tangsritrakul, Chumpon Wichittanakom, Chatree Saiyasombat
Composition-Driven Phase Coexistence And Functional Properties Of The (1-X)Bzt-(X)Bct Ceramics Near The Phase Convergence Region, Jirapa Tangsritrakul, Chumpon Wichittanakom, Chatree Saiyasombat
Journal of Metals, Materials and Minerals
The concept of composition-induced phase transformation in Lead Zirconate Titanate (PZT) at the Morphotropic Phase Boundary (MPB) has been employed to improve functional properties of the (1-x)BZT-(x)BCT ceramic. However, it was observed that the phase diagram of the (1-x)BZT-(x)BCT ceramic is different to the PZT. As a result, the nature of the superior functional properties found in (1-x)BZT-(x)BCT ceramic is unlike PZT and still unclear so far. In this work, functional properties; dielectric, ferroelectric, energy storage, and piezoelectric properties, of the (1-x)BZT-(x)BCT ceramics where x = 0.3 mol% to 0.6 mol% were evaluated at room temperature in comparison to the …