Facile Synthesis of ZnS/ZnO Nanosheets With Enhanced Photocatalytic Activity

Abstract

ZnS/ZnO heterostructural nanosheets (NSs) are fabricated facilely via a simple solvothermal treatment from ZnS(en) 0.5 (en ¼ ethylenediamine) NSs. The synthesized ZnS/ZnO NSs, with a diameter in the range of 150-350 nm and a thickness of 20 nm, grow on the surface of zinc substrate. Structural characterization revealed that both ZnO and ZnS in ZnS/ZnO NSs heterostructure are hexagonal wurtzite crystal structure. The photocatalytic behavior of ZnS/ZnO NSs is scrutinized using rhodamine B (RhB) as probe molecule under UV light irradiation. The result shows that the photocatalytic activity of ZnS/ZnO NSs is markedly enhanced compared to pure ZnS NSs.Moreover, the reusability test indicated that ZnS/ZnO NSs kept high photocatalytic efficiency after five cycles.

Photocatalytic CO2 reduction of C/ZnO nanofibers enhanced by an Ni-NiS cocatalyst

“…12,13 ZnO has been widely studied as a photocatalyst due to its high exciton binding energy, rapid generation of electron (e CB− )-hole (h VB+ ) pairs, and strong electron-migration ability. [14][15][16][17][18][19] However, three disadvantages largely hinder the large-scale application of ZnO: (a) fast recombination of charge carriers, (b) poor capacity for CO 2 adsorption, and (c) poor ability to absorb visible light. [20][21][22] Various efforts have been made to address these shortcomings, and several approaches, such as doping, constructing heterojunctions, developing new nanostructures, and loading with cocatalysts, have been proposed.…”

Morphological studies and photocatalytic degradation of methylene blue by zinc sulfide nanoparticles

“…The peaks were indexed to those reported in the JCPDS card no. 36-1450 [22][23][24]. Transmission electron microscopy micrographs of the as-prepared ZnS nanoparticles (Figure 2) revealed monodisperse spherically shaped particle for ZnS1 prepared from bis(Nmethylbenzyldithiocarbamato)Zn(II).…”

Development of Dual-Nanoarchitecture Photoanodes Based on Microwave-Assisted ZnS(en)0.5 Nanoplates for Photoelectrochemical Hydrogen Generation

“…To date, the synthesis of inorganic–organic ZnS­(en) 0.5 hybrid materials has implemented solvothermal strategies, but it requires high temperatures and long duration. , Recently, researchers have reported the synthesis of an inorganic–organic ZnS­(en) 0.5 structure on a Zn foil electrode system. Zhu et al reported the synthesis of ZnS­(en) 0.5 at 180 °C for 24 h, which was further converted to ZnS/ZnO nanosheets using a hydrothermal method. In addition, Qian et al fabricated ZnS nanowire arrays on Zn foil and systematically studied the influence of the reaction period and temperature on the morphology.…”