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Photocatalytic Reduction of NO3- in Water
Hongzhang He, Jingzhe Zhang, Kenian Zhou, Jinbo Wu, Faliang Li, Haijun Zhang
Prog Chem ›› 2025, Vol. 37 ›› Issue (10) : 1569-1580.
PDF(2040 KB)
PDF(2040 KB)
Photocatalytic Reduction of NO3- in Water
The extensive use of chemical fertilizers and other industrial and agricultural chemicals has led to the discharge of excessive nitrate wastewater into nature, posing a serious threat to the environment and human health. Photocatalytic nitrate reduction technology is considered to be a promising, harmless treatment method for nitrate due to its high efficiency, low energy consumption and wide applicability. In this paper, the mechanism and main products of nitrate reduction in photocatalytic water are described in detail. The commonly used photocatalyst types are systematically reviewed, and the influencing factors in the photocatalytic process are introduced. In addition, the main challenges faced by photocatalytic nitrate reduction technology are comprehensively analyzed, and its future development prospects are discussed and prospected.
1 Introduction
2 Mechanistic insight into nitrate reduction
3 Products of photocatalytic nitrate reduction
4 Photocatalyst
4.1 Single-phase photocatalyst
4.2 Supported photocatalyst
5 Conclusion and outlook
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