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论文名称：Interface engineering and oxygen enhancement mechanisms in surface metal-decorated TiO2 photocatalysts for efficient ammonia nitrogen removal

发表刊物：Applied Surface Science

刊物所在地：Elsevier

摘要：Loading metals on the surface of titanium dioxide (TiO2) has emerged as an attractive approach to enhance the ammonia–nitrogen (NH4+-N) removal performance. Herein, we comparatively investigated the NH4+-N removal performance of transition metals loaded onto TiO2 via an in-situ photodeposition method. Metal-TiO2 interface affects the valence state transitions and Interface effect, which critically regulate charge transfer efficiency and influence reactive oxygen species (ROS) generation in photocatalytic ammonia nitrogen degradation. Therefore, oxygen introducing promotes the degradation of NH4+-N. Under the oxygen-supplied condition, we found that the NH4+-N conversion efficiencies of Cu-TiO2 and Pd-TiO2 photocatalysts increase to 30.8 % and 44.8 %, respectively, achieving the optimal degradation efficiency. This work systematically investigates the comparison of NH4+-N removal effects by metal-decorated TiO2 prepared via the same method under different conditions. The analysis reveals the interfacial regulation between metals and TiO2 in governing ROS-driven degradation, yielding key mechanistic guidance for the development of high-efficiency catalysts for ammonia-rich wastewater treatment.

第一作者：Lihui Xiao

通讯作者：Liang Guo,Zuoli He

全部作者：Ziye Zheng,Yi Ren,Meng Dai,Huijun Yu,Hongsheng Li,Shuguang Wang

论文类型：期刊论文

论文编号：165920

学科门类：工学

文献类型：J

页面范围：165920

影响因子：6.9

DOI码：10.1016/j.apsusc.2026.165920

字数：8000

是否译文：否

发表时间：2026-01

收录刊物：SCI

发布期刊链接：https://doi.org/10.1016/j.apsusc.2026.165920

发布时间：2026-01-14