Controlled loading of gold nanoparticles on ZnO nanorods and their high photocatalytic activity

Fabrication, characterization and high photocatalytic activity of Ag–ZnO heterojunctions under UV-visible light

“…[5][6][7][8][9][10] Therefore, advancing the photocatalytic activity of ZnO has become an active research topic at present. ZnO modied by noble metal loading [11][12][13][14] and ion doping [15][16][17][18] has attracted considerable attention and has been widely studied. The effect of ion doping on the photocatalytic performance of ZnO is still controversial.…”

Enhancement of Photocatalytic Performances by Sand/Zinc Oxide

“…Moreover, the efficiency of photocatalysis still very low due to fast recombination of electron-hole (e-h) rate [12] which estimated with nanosecond [13]. The photocatalysis performance were show enhancement by doping and loading with metal [14], multi wall carbon nanotubes (MWCNTs) [15] Graphen Oxide (GO) [12] and Reduce Graphen Oxide (rGO) [16]. The doping material on ZnO nanostructure slow the recombination e-h rate, But, the problems with metallic element are poor in transparency which can dramatically affect the photocatalysis efficiency.…”

Photocatalytic, sonocatalytic, and photosonocatalytic of Fe3O4/CuO/ZnO nanocomposites with addition of 2 different types of carbon

“…Advanced oxidation process (AOPs) using semiconductors like ZnO, ZrO2, SnO, Fe3O4 and TiO2 as a catalyst has attracted enormous attention to their potential application in water purification due to their economical price and ability to completely degrade and convert organic dyes to harmless chemicals [3][4]. The example methods of AOPS are photocatalysis which uses light as irradiation, sonocatalysis which uses ultrasound irradiation, and photosonocatalysis which combines both light and ultrasound irradiation simultaneously.…”

“…Unfortunately, ZnO has a wide bandgap (3.2 eV) and high recombination of electron and hole [3][4]. Therefore, it is necessary to modify the structural as well as optical properties by coupling ZnO with other semiconductors with short bandgap such as CuO [5].…”