Efficient Photocatalytic Removal of Aqueous Ammonia Nitrogen by g-C3N4/CoP Heterojunctions Under Visible Light Illumination

文献类型： 外文期刊

第一作者： Wang, Dongxu

作者： Wang, Dongxu;Mao, Wanfeng;Zhao, Lihong;Meng, Duo;Tang, Jiaqi;Wu, Tengfei

作者机构：

关键词： g-C3N4/CoP heterojunction; ammonia nitrogen removal; photocatalytic technology; nitrogen selectivity

期刊名称：NANOMATERIALS （ 影响因子：4.3； 五年影响因子：4.7 ）

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年卷期： 2024 年 14 卷 24 期

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收录情况： SCI

摘要： With the development of industry, agriculture, and aquaculture, excessive ammonia nitrogen mainly involving ionic ammonia (NH4+) and molecular ammonia (NH3) has inevitable access to the aquatic environment, posing a severe threat to water safety. Photocatalytic technology shows great advantages for ammonia nitrogen removal, such as its efficiency, reusability, low cost, and environmental friendliness. In this study, CP (g-C3N4/CoP) composite materials, which exhibited high-efficiency ammonia nitrogen removal, were synthesized through a simple self-assembly method. For the optimal CP-10 (10% CoP) samples, the removal rate of ammonia nitrogen reached up to 94.8% within 80 min under visible light illumination. In addition, the nitrogen selectivity S(N-2) is about 60% for all oxidative products. The high performance of the CP-10 photocatalysts can be ascribed to the effective separation and transmission of electron-hole pairs caused by their heterogeneous structure. This research has significance for the application of photocatalysis for the remediation of ammonia nitrogen wastewater.

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