Metal-organic framework derived hierarchical ZnO nanosheets/CdS composites for high photocatalytic activity under solar radiation

Xu, Feng; Liu, Chao; Xun, Qining; Liu, Xia; Xing, Wenfang; Pu, Chun; Yao, Yao; Chen, Minjie; Chang, Ganggang

doi:10.1016/j.cplett.2023.140464

Cited by 1 publication

(1 citation statement)

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“…They have a prohibited energy gap that requires visible light to migrate electrons from the filled VB to the CB. This excites a positive hole in the VB and a free electron in the CB, resulting in an electron-hole pair [21][22][23]. The ultimate purpose of the photocatalyst design is to allow reactions between the produced holes and reductant, leading to the production of an oxidized product, while simultaneously facilitating the interaction of excited electrons to produce a reduced product.…”

Section: Introductionmentioning

confidence: 99%

Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production

Nadikatla¹,

Chintada²,

Gurugubelli³

et al. 2023

Molecules

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Researchers have recently paid a lot of attention to semiconductor photocatalysts, especially ZnO-based heterostructures. Due to its availability, robustness, and biocompatibility, ZnO is a widely researched material in the fields of photocatalysis and energy storage. It is also environmentally beneficial. However, the wide bandgap energy and quick recombination of the photoinduced electron–hole pairs of ZnO limit its practical utility. To address these issues, many techniques have been used, such as the doping of metal ions and the creation of binary or ternary composites. Recent studies showed that ZnO/CdS heterostructures outperformed bare ZnO and CdS nanostructures in terms of photocatalytic performance when exposed to visible light. This review largely concentrated on the ZnO/CdS heterostructure production process and its possible applications including the degradation of organic pollutants and hydrogen evaluation. The importance of synthesis techniques such as bandgap engineering and controlled morphology was highlighted. In addition, the prospective uses of ZnO/CdS heterostructures in the realm of photocatalysis and the conceivable photodegradation mechanism were examined. Lastly, ZnO/CdS heterostructures’ challenges and prospects for the future have been discussed.

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Section: Introductionmentioning

confidence: 99%