Silver-based semiconductor Z-scheme photocatalytic systems for environmental purification.

Clicks: 264
ID: 90270
2020
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Abstract
Silver-based semiconductor photocatalysts are promising materials for solving environmental and energy issues due to their strong optical absorption, excellent quantum efficiency and photoelectrochemical properties. However, the uncontrollable photocorrosion and high use cost of single silver-based semiconductor photocatalysts limit its practical application. The construction of Z-scheme photocatalytic systems that mimic natural photosynthesis can not only enhance the photocatalytic activity of silver-based semiconductor photocatalysts, but also improve their stability and reduce the use costs. This critical review concisely highlights the basic principles of Z-scheme photocatalytic systems, and discusses the construction of silver-based semiconductor Z-scheme photocatalytic systems and the roles of metallic Ag in there and summarizes the synthesis methods of silver-based semiconductor Z-scheme photocatalytic systems. Then, a series of the solar-driven applications are elaborated, including organic pollutants degradation, hydrogen production, and carbon dioxide reduction. Meanwhile, the mechanism and difficult level of these photocatalytic reactions are also described. Besides, metal organic frameworks (MOFs) as a novel type of photocatalysts have attracted growing attention. The novel combination of silver-based semiconductors with typical photoactive MOFs is highlighted based on the Z-scheme photocatalytic systems. Eventually, the future challenges and prospects in the development of silver-based semiconductor Z-scheme photocatalytic systems are presented.
Reference Key
xue2020silverbasedjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xue, Wenjing;Huang, Danlian;Wen, Xiaoju;Chen, Sha;Cheng, Min;Deng, Rui;Li, Bo;Yang, Yang;Liu, Xigui;
Journal Journal of hazardous materials
Year 2020
DOI
S0304-3894(20)30116-3
URL
Keywords
photocatalytic hydrogen production metal organic frameworks carbon dioxide reduction organic pollutants degradation silver-based semiconductor

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