نتایج جستجو برای: photocatalytic mineralization

تعداد نتایج: 28705  

This study was aimed at investigating the photocatalytic degradation of ciprofloxacin (CIP) antibiotic in aqueous solution using immobilized ZnO nanoparticles on glass plate. X-ray diffraction, atomic force microscopy, and scanning electron microscopy were applied to characterize the nanoparticles. To do so, the ZnO nanoparticles were synthesized through the chemical precipitation method and we...

Journal: :Catalysts 2022

TiO2/SiO2 composites were synthesized via a simple sol gel method by surface reduction of Ti4+ ions to Ti3+ using titanium isopropoxide as TiO2 precursor and rice husks (RHA) SiO2 source. The silica content calcination temperature the materials evaluated. Thermal, crystallographic physicochemical aspects suggest that biogenic (SiO2) can improve thermal stability anatase phase TiO2, when reaches...

Journal: :Catalysts 2022

An easily recoverable photo-catalyst in solid form has been synthesized and applied catalytic ozonation the presence of primidone. Maghemite, graphene oxide titania (FeGOTi) constituted solid. Additionally, (TiO2) oxide–titania (GOTi) catalysts were also tested for comparative reasons. The main characteristics FeGOTi 144 m2/g surface area; a 1.29 Raman D G band intensity ratio; 26-emu g−1 magne...

Journal: :SN applied sciences 2021

Abstract Heterogeneous photocatalysis is an advanced oxidation process (AOP). This technique used to degrade a wide range of pollutants in water. In this study, photocatalytic and mineralization malachite green aqueous suspension containing nickel-based catalysts copper supported on TiO 2 prepared by wet diffusional impregnation was studied using two sources irradiation: solar microwave. Photod...

Journal: :Catalysts 2021

Pure-phase Cu2−xS (x = 1, 0.2) nanoparticles have been synthesized by the thermal decomposition of copper(II) dithiocarbamate as a single-source precursor in oleylamine capping agent. The compositions nanocrystals varied from CuS (covellite) through mixture phases (CuS and Cu7.2S4) to Cu9S5 (digenite) simply varying temperature synthesis. crystallinity morphology copper sulfides were studied us...

Journal: :Journal of environmental chemical engineering 2022

Photocatalytic oxidation/ozonation of a mixture eight pharmaceuticals added to secondary effluent, SE, an urban wastewater treatment plant has been studied using TiO2 supported on commercial Al2O3/SiO2 ceramic foams. As radiation source UVA LEDs (365 nm) or solar was used. Pharmaceuticals were at high (1 mg L−1 each) relatively low (50 μg concentration, contributing 25% and 1.5% the initial TOC...

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