Issue 34, 2022

Reaction mechanism and selectivity regulation of photocatalytic nitrate reduction for wastewater purification: progress and challenges

Abstract

The excess emission of nitrate into wastewater is inevitable by the abundant use of fertilizers and other chemicals, which poses a huge threat to the environment and human health. Photocatalytic nitrate reduction is regarded as a promising strategy to remove nitrate on account of the high efficiency, low energy consumption and wide applicability. In this review, the mechanism of photocatalytic nitrate reduction is summarized, especially the generation and transformation mechanism of the reactive species and intermediate products is concluded. Then the methods for investigating and regulating selectivity for innocent nitrogen production from nitrate reduction are proposed. At last, the challenges and outlooks of photocatalytic nitrate reduction are put forward as a near-future technology.

Graphical abstract: Reaction mechanism and selectivity regulation of photocatalytic nitrate reduction for wastewater purification: progress and challenges

Article information

Article type
Review Article
Submitted
10 jun 2022
Accepted
25 jul 2022
First published
01 aug 2022

J. Mater. Chem. A, 2022,10, 17357-17376

Reaction mechanism and selectivity regulation of photocatalytic nitrate reduction for wastewater purification: progress and challenges

W. Yang, J. Wang, R. Chen, L. Xiao, S. Shen, J. Li and F. Dong, J. Mater. Chem. A, 2022, 10, 17357 DOI: 10.1039/D2TA04611C

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