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Full-Text Articles in Physical Sciences and Mathematics
Treatment Of Industrial Contaminants With Zero-Valent Iron- And Zero-Valent Aluminiumactivatedpersulfate: A Case Study With 3,5-Dichlorophenol And 2,4-Dichloroaniline, Olga Koba Ucun, Bahareh Montazeri̇, İdi̇l Arslan Alaton, Tuğba Ölmez Hanci
Treatment Of Industrial Contaminants With Zero-Valent Iron- And Zero-Valent Aluminiumactivatedpersulfate: A Case Study With 3,5-Dichlorophenol And 2,4-Dichloroaniline, Olga Koba Ucun, Bahareh Montazeri̇, İdi̇l Arslan Alaton, Tuğba Ölmez Hanci
Turkish Journal of Chemistry
Zero-valent iron (ZVI)- and zero-valent aluminium (ZVA)-activated persulfate (PS) oxidation procedure was applied to remove the industrial pollutants 3,5-dichlorophenol (3,5-DCP; 12.27 μM) and 2,4-dichloroaniline (2,4-DCA; 12.34 μM) from aqueous solutions. The effects of PS concentration and pH were investigated to optimize heterogeneous treatment systems. Negligible removals were obtained for both pollutants by individual applications of nanoparticles (1 g/L) and PS (1.00 mM). PS activation with ZVI resulted in 59% (1.00 mM PS; 1 g/L ZVI; pH 5.0; 120 min) and 100% (0.75 mM PS; 1 g/L ZVI; pH 5.0; 80 min) 3,5-DCP and 2,4-DCA removals, respectively. The ZVA/PS treatment system …
Microwave Irradiated Synthesis Of Schiff Bases Of 4-(Arylideneamino)-5-Alkyl-2,4-Dihydro-1,2,4-Triazole-3-Thione Containing 1,2,4-Triazole Segment, Mahdi Shirmohammadi, Saeid Souzangarzadeh, Dadkhoda Ghazanfari, Mohsen Ghodratbeigi, Mohammad Reza Akhgar
Microwave Irradiated Synthesis Of Schiff Bases Of 4-(Arylideneamino)-5-Alkyl-2,4-Dihydro-1,2,4-Triazole-3-Thione Containing 1,2,4-Triazole Segment, Mahdi Shirmohammadi, Saeid Souzangarzadeh, Dadkhoda Ghazanfari, Mohsen Ghodratbeigi, Mohammad Reza Akhgar
Turkish Journal of Chemistry
Novel compounds based on the 1,2,4-triazole skeleton were synthesized. A class of 4-amino-5-alkyl-4H-1,2,4-triazole-3- thione created by reaction of thiocarbohydrazide with long-chain aliphatic carboxylic acids, and then the Schiff bases were obtained in the media of heat and microwave waves, in the presence and the absence of a catalyst. Their chemical structures were assayed by elemental analysis, also device spectroscopic methods.
The Role Of Some Metal Ions In Enhancement Of Photocatalytic Activity Of Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$Binary Oxide, Eda Sinirtaş İlkme, Güli̇n Selda Pozan Soylu
The Role Of Some Metal Ions In Enhancement Of Photocatalytic Activity Of Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$Binary Oxide, Eda Sinirtaş İlkme, Güli̇n Selda Pozan Soylu
Turkish Journal of Chemistry
Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$ mixed oxides were synthesized with solid-state dispersion (SSD) and coprecipitation methods. In addition, transition metal oxides such as CuO, NiO, and Co$_{3}$O$_{4}$ were successfully loaded on the synthesized catalyst (Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$) using the SSD method. The composite catalysts were inspected for their photocatalytic activities in degrading 2,4-dichlorophenol under UV light enforcement. The produced samples were analyzed using X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy, scanning electron microscopy, photoluminescence, and the Brunauer-Emmett- Teller method. The addition of transition metal oxides improved the photocatalytic activity of Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$5 (SSD). 1CuO wt% Fe$_{2}$O$_{3}$-V$_{2}$O$_{5}$ exhibited the highest percentage of 2,4-dichlorophenol …
Synthesis Of Some Nh- And Nh,S- Substituted 1,4-Quinones, Ayşeci̇k Kaçmaz
Synthesis Of Some Nh- And Nh,S- Substituted 1,4-Quinones, Ayşeci̇k Kaçmaz
Turkish Journal of Chemistry
A series of NH-substituted-1,4-quinones, possessing one, two, three or not chlorine, were synthesized by the reaction between different quinones (p-chloranil (1), p-toluquinone (2), or 2,3-dichloro-1,4-naphthoquinone (3)) and (-)-cis-myrtanylamine (5) via nucleophilic reactions. Moreover, 2-bromo-1,4-naphthoquinone (4) was reacted with 2-(methylthio)ethylamine (11) to produce aminosubstituted naphthoquinones (12 and 13), bearing with bromine and not bromine. In addition, 2-bromo-1,4-naphthoquinone (4) was reacted with 4?-aminodibenzo-18-crown-6 (14) and 4'-aminobenzo-18-crown-6 (16) to yield crown-containing 1,4-naphthoquinones (15 and 17), respectively. New compounds were characterized, providing 1H NMR, 13C NMR, FTIR, MS-ESI, UV/Vis and elemental analysis.
Electrochemical Investigation Of The Interaction Of 2,4-D And Double Stranded Dna Using Pencil Graphite Electrodes, Gülşah Çongur
Electrochemical Investigation Of The Interaction Of 2,4-D And Double Stranded Dna Using Pencil Graphite Electrodes, Gülşah Çongur
Turkish Journal of Chemistry
2,4-dichlorophenoxyacetic acid (2,4-D) is an auxinic herbicide used to control broadleaf weeds. It is also a threatening factor for not only aquatic life but also human health due to its genotoxicity and endocrine disruptive property. Herein, the interaction between 2,4-D and double stranded DNA was investigated by using single-use pencil graphite electrodes (PGE) in combination with electrochemical techniques. The detection mechanism was based on the monitoring of the changes at the guanine oxidation signal obtained before/after surface-confined interaction of 2,4-D and DNA at the surface of PGE. The electrochemical characterization of the interaction was studied by using microscopic and electrochemical …
Integrated 3d-Qsar, Molecular Docking, And Molecular Dynamics Simulation Studies On 1,2,3-Triazole Based Derivatives For Designing New Acetylcholinesterase Inhibitors, Khalil El Khatabi, Ilham Aanouz, Reda El-Mernissi, Atul Kumar Singh, Mohammed Aziz Ajana, Tahar Lakhlifi, Shashank Kumar, Mohammed Bouachrine
Integrated 3d-Qsar, Molecular Docking, And Molecular Dynamics Simulation Studies On 1,2,3-Triazole Based Derivatives For Designing New Acetylcholinesterase Inhibitors, Khalil El Khatabi, Ilham Aanouz, Reda El-Mernissi, Atul Kumar Singh, Mohammed Aziz Ajana, Tahar Lakhlifi, Shashank Kumar, Mohammed Bouachrine
Turkish Journal of Chemistry
Alzheimer's disease (AD) is a multifactorial and polygenic disease. It is the most prevalent reason for dementia in the aging population. A dataset of twenty-six 1,2,3-triazole-based derivatives previously synthetized and evaluated for acetylcholinesterase inhibitory activity were subjected to the three-dimensional quantitative structure-activity relationship (3D-QSAR) study. Good predictability was achieved for comparative molecular field analysis (CoMFA) (Q2 = 0.604, R2 = 0.863, rext2 = 0.701) and comparative molecular similarity indices analysis (CoMSIA) (Q2 = 0.606, R2 = 0.854, rext2 = 0.647). The molecular features characteristics provided by the 3D-QSAR contour plots were quite useful for designing and improving the activity of …
Turkish Perlite Supported Nickel Oxide As The Heterogeneous Acid Catalyst For A Series Of Claisen?Schmidt Condensation Reactions, Sakshi Kabra Malpani, Deepti Goyal, Stuti Katara, Ashu Rani
Turkish Perlite Supported Nickel Oxide As The Heterogeneous Acid Catalyst For A Series Of Claisen?Schmidt Condensation Reactions, Sakshi Kabra Malpani, Deepti Goyal, Stuti Katara, Ashu Rani
Turkish Journal of Chemistry
Potentially active and eco-friendly solid acid catalysts have been synthesized by loading different weight percentages (10, 15, and 50) of nickel oxide on thermally activated Turkish perlite through the deposition-precipitation method. Structural features of prepared catalysts were analyzed using BET surface area analysis, X-ray diffraction, scanning electron microscope (SEM), SEM-EDX, transmission electron microscopy (TEM), Fourier-transform infrared (FT-IR), pyridine adsorbed FT-IR, UV-Vis diffuse reflectance spectroscopy (DRS), and thermogravimetric analysis (TGA) techniques. Pyridine adsorbed FT-IR analysis confirmed the presence of the optimum amount of Bronsted acidic sites in a catalyst having 15 wt. % loading of nickel oxide, which was tested for …