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Medicine and Health Sciences

Adsorption

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Adsorbents From Rice Husk And Shrimp Shell For Effective Removal Of Heavy Metals And Reactive Dyes In Water, Md Ibrahim H Mondal, Shovra Chandra Chakraborty, Md Saifur Rahman, Shaik Merkatur Hakim Marjuban, Firoz Ahmed, John L Zhou, Mohammad Boshir Ahmed, Masoumeh Zargar Apr 2024

Adsorbents From Rice Husk And Shrimp Shell For Effective Removal Of Heavy Metals And Reactive Dyes In Water, Md Ibrahim H Mondal, Shovra Chandra Chakraborty, Md Saifur Rahman, Shaik Merkatur Hakim Marjuban, Firoz Ahmed, John L Zhou, Mohammad Boshir Ahmed, Masoumeh Zargar

Journal Articles

Widespread contamination by heavy metals (HMs) and dyes poses a major health risk to people and ecosystems requiring effective treatment. In this work, rice husk (RH) and shrimp shells were extracted to obtain amorphous silica and chitosan, respectively, which were utilized to produce nano-chitosan-coated silica (NCCS). To ensure the stability of the nanoparticles, silica was freeze-dried after being coated with nano-chitosan. Functional groups (-NH


Design Of Hybrid Pah Nanoadsorbents By Surface Functionalization Of Zro2 Nanoparticles With Phosphonic Acids, Nadine Bou Orm, Thomas Gréa, Marwa Hamandi, Alexandre Lambert, Florent Lafay, Emmanuelle Vulliet, Stéphane Daniele Apr 2021

Design Of Hybrid Pah Nanoadsorbents By Surface Functionalization Of Zro2 Nanoparticles With Phosphonic Acids, Nadine Bou Orm, Thomas Gréa, Marwa Hamandi, Alexandre Lambert, Florent Lafay, Emmanuelle Vulliet, Stéphane Daniele

All Works

This study focuses on the preparation of innovative nanocomposite materials based on surface modification of commercial nano-ZrO optimized from Brønsted acid–base surface reactions. This surface modification was carried out by direct grafting of suitable phosphonic acids bearing a vinylic or phenylic substituent in aqueous solution. Different loading quantities of the anchoring organophosphorus compounds were applied for each materials synthesis. The resulting nanohy-brids were thoroughly characterized by infrared spectroscopy (DRIFT), solid-state nuclear magnetic resonance (NMR), nitrogen adsorption-desorption (BET), thermogravimetric analysis (TG), and X-ray photoelectron spectroscopy (XPS), demonstrating the reliability and efficient tunability of the surface functionalization based on the starting Zr/P …