光催化
异质结
吸附
降级(电信)
污染物
材料科学
水处理
复合数
化学工程
催化作用
化学
环境工程
环境科学
有机化学
复合材料
光电子学
计算机科学
电信
工程类
作者
Pin Song,Jun Du,Xiaoli Ma,Yaowu Shi,Xiaoyu Fang,Daobin Liu,Shiqiang Wei,Zhanfeng Liu,Yong Cao,Bo Lin,Jun Di,Yan Wang,Jiewu Cui,Tingting Kong,Chao Gao,Yujie Xiong
摘要
Abstract Dyes and antibiotics as typical persistent organic pollutants (POPs) are widely present in the environment, but can hardly be removed completely by traditional water treatment methods. Here, we designed Bi 4 O 5 Br 2 /g‐C 3 N 4 composite nanosheets for efficient photocatalytic removal of POPs in water. The Bi 4 O 5 Br 2 /g‐C 3 N 4 composite with a heterojunction structure exhibited high adsorption and photocatalytic activity for removal of tetracycline (TC) and ciprofloxacin (CIP) with excellent cyclic stability, owing to its large specific surface area as well as enhanced charge separation and visible light utilization. Our characterization revealed that h + and ·OH are responsible for the photocatalytic degradation of TC and CIP. This work provides insights into the design of photocatalytic materials with synergy of adsorption and photocatalytic degradation, and offers a heterojunction construction strategy for addressing the increasingly severe environmental issues.
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