光催化
催化作用
降级(电信)
锐钛矿
材料科学
化学工程
电子转移
氧化还原
诺氟沙星
静电纺丝
化学
光化学
冶金
有机化学
复合材料
计算机科学
环丙沙星
聚合物
抗生素
工程类
电信
生物化学
作者
Zhilin Ji,Rongsheng Cai,Wanneng Ye,Ping Lü,Chung‐Li Dong,Yu‐Cheng Huang,Xilin She,Denys S. Butenko,Yiming Liu,Yukun Zhu,Dongjiang Yang
标识
DOI:10.1016/j.jclepro.2022.135161
摘要
Developing efficient and sustainable photocatalyst is crucial for antibiotic degradation in water treatment. Iron (Fe) species modified semiconductor photocatalysts have been widely used in visible-light driven Fenton-like systems. However, the limited dispersion of Fe sites and low redox rate of the Fe(III)/Fe(II) restrict the catalytic performance. Herein, the atomic Fe sites with highly dispersed coordination centers were confined (100) facets exposed titania nanofibers (Fe-TNFs) for efficient photocatalytic Fenton-like norfloxacin (NOR) degradation. The optimized Fe-TNFs catalyst could achieve 95% NOR removal after 5 h of white LED illumination, which is 15% higher than that of nanostructured Fe species. The high performance is credited for the enhanced visible light absorption, and the efficient electron transfer through Fe–O bonds in Fe-TNFs enables the fast cyclic transformation of Fe(III)/Fe(II), which can promote the continuous production of •OH in the photocatalytic Fenton-like system. This study can provide technical support for the developing a feasible and sustainable wastewater treatment solution, and provide reference for the fate and risk assessment of antibiotics in the environment.
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