异质结
材料科学
光催化
导带
氧化物
方案(数学)
价带
金属
光电子学
纳米技术
带隙
电子
物理
化学
催化作用
数学分析
冶金
量子力学
生物化学
数学
作者
Ye Yuan,Rui‐tang Guo,Long‐fei Hong,Xiang‐yin Ji,Zhidong Lin,Zhengsheng Li,Weiguo Pan
标识
DOI:10.1016/j.mtener.2021.100829
摘要
Metal oxide-based Z-scheme heterojunction photocatalyst can effectually separate electrons and holes and simultaneously ensure that photocatalysts can maintain appropriate conduction band (CB) and valence band (VB) positions, thus maintaining a strong redox capacity. This article introduced the mechanism and types of Z-scheme heterojunction photocatalysts. Nevertheless, direct Z-scheme photocatalytic mechanism was gradually replaced by new S-scheme heterojunction mechanism. Thus, this review also briefly discussed the improved Z-scheme mechanism, that is, S-scheme heterojunction, so that the mechanism of the charge transfer process could be understood more intuitively and clearly. Then we emphatically summarized the applications of different types of heterojunctions in the field of photocatalysis, ranging from environmental remediation to energy conversion. In addition, several typical traditional methods and new strategies for preparing Z-scheme heterojunctions were summed up. Finally, the breakthrough and development prospect of Z-scheme heterojunction were discussed.
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