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Research progress of nitrate removal technologies based on photoelectrochemical reduction
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Tian-rong HUANG1, Kai-chong WANG1, Zi-bin LI1, Dan-ping LI1, Han WANG1, Ya-yi WANG1, 2, *
China Environmental Science | 2025, 45(4) : 1878 - 1888
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China Environmental Science | 2025, 45(4): 1878-1888
• Water Pollution Control •
Research progress of nitrate removal technologies based on photoelectrochemical reduction
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Tian-rong HUANG1, Kai-chong WANG1, Zi-bin LI1, Dan-ping LI1, Han WANG1, Ya-yi WANG1, 2, *
Affiliations
  • 1.School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
  • 2.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
Published: 2025-04-20
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As a common pollutant in water, nitrate has nonnegligible harmful effects on human health and the ecological environment. Faced with an increasingly severe energy crisis, the development of green, clean and sustainable nitrate removal technologies to replace the conventional resource-intensive denitrification process is urgently needed. Photoelectrochemical nitrate reduction powered by sunlight has become a research hotspot at home and abroad. Based on the way photogenerated electrons being transferred from semiconductor to nitrate, this technology can be categorized into photocatalytic reduction, photoelectrocatalytic reduction, and microbial photoelectrotrophic reduction. In this review, the mechanisms of three photoelectrochemical nitrate reduction technologies were discussed. With a focus on improving system performance, the selection and design strategies of photocatalysts, photoelectrodes and microbial photosensitizers were also summarized. Moreover, the technical difficulties of photoelectrochemical nitrate reduction are clarified and the future directions of research are proposed, such as regulating the pathway of microbial absorption and utilization of photogenerated electrons through genetic engineering and other methods. The insights provided will serve as a reference for the development of new nitrate removal and reutilization technologies.

photoelectrochemistry  /  nitrate removal  /  photocatalyst  /  photoelectrode  /  photosensitizer
Tian-rong HUANG, Kai-chong WANG, Zi-bin LI, Dan-ping LI, Han WANG, Ya-yi WANG. Research progress of nitrate removal technologies based on photoelectrochemical reduction[J]. China Environmental Science, 2025 , 45 (4) : 1878 -1888 .
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Year 2025 volume 45 Issue 4
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Article Info
  • Receive Date：2024-09-04
  • Online Date：2026-03-19
  • Published：2025-04-20
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  • Received：2024-09-04
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    1.School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
    2.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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