Synergistic synthesis of Carrisa edulis fruit extract capped heterogeneous CuO-ZnO-HNT composite for photocatalytic removal of organic pollutants

CdSe Quantum Dots Bedecked on ZnO/TiO2/CuO Ternary Nanocomposite for Enhanced Photocatalytic and Photovoltaic Applications

“…The photocatalytic process of CdSe quantum dots bedecked on ZnO/TiO 2 /CuO hybrid composites has been tentatively hypothesized in all studies and graphically presented in Figure 10 (eq 6−12). 58,59 In order to explain the possible reaction with the help of an elemental scavenging test, the band potential of the samples was calculated using the following equations…”

Developing efficient CuO nanoplate/ZnO nanoparticle hybrid photocatalysts for methylene blue degradation under visible light

“…47 Similar enhancement in the photocatalytic activity of different CuO/ZnO heterojunctions has been reported in numerous accounts. [48][49][50] Methylene blue (MB), also known as methylthionine chloride (C 16 H 18 ClN 3 S), is a cationic thiazine dye with a stable molecular structure and non-biodegradable nature. It has been one of the most commonly used substrates for dyeing cotton, wool, silk, and other synthetics, and hence, it presents widespread in the effluents of the chemical industry into the land and water without proper treatment.…”

“…56 14 Various methods including composite formation, 13,15,59 addition of metal ion dopants, 9,56,60 and blending metal oxide 8,12,13 were developed to enhance the photocatalytic performance. Some researchers have combined CuO with ZnO to produce a photocatalyst for the degradation of pollutants such as methylene blue, 4,11 Rhodamine B, 7,43 Rhodamine 6G, 36 methyl orange, 36 ciprooxacin, 39 Brilliant Blue, 35 Direct Blue, 45 Congo Red (CR), tetracycline (TC), 49 This article focuses on the properties of CuO nanoplate/ZnO nanoparticle composites, the technique for synthesizing them and their application in the photodegradation and mineralization of organic pollutants. Here, CuO nanoplates were prepared by a simple low-temperature hydrothermal method using CuSO 4 as a copper precursor and NaOH as a basic medium, which favored the precipitation of Cu(OH) 2 , while ZnO nanoparticles were fabricated by a precipitation method using Zn(NO 3 ) 2 and (NH 4 ) 2 CO 3 as starting agents.…”

“…47 Similar enhancement in the photocatalytic activity of different CuO/ZnO heterojunctions has been reported in numerous accounts. 48–50…”

“…14 Various methods including composite formation, 13,15,59 addition of metal ion dopants, 9,56,60 and blending metal oxide 8,12,13 were developed to enhance the photocatalytic performance. Some researchers have combined CuO with ZnO to produce a photocatalyst for the degradation of pollutants such as methylene blue, 4,11 Rhodamine B, 7,43 Rhodamine 6G, 36 methyl orange, 36 ciprofloxacin, 39 Brilliant Blue, 35 Direct Blue, 45 Congo Red (CR), tetracycline (TC), 49 phenol red, 61 and 4-nitrophenol. 62 CuO/ZnO materials have been reported as promising photocatalysts to degrade MB since they bear multiple active sites with tunable compositions.…”