Design of Bi 4 O 5 Br 2 /g‐C 3 N 4 heterojunction for efficient photocatalytic removal of persistent organic pollutants from water

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 wat...

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Veröffentlicht in:EcoEnergy (Richmond, Vic. Print) Vic. Print), 2023-09, Vol.1 (1), p.197-206
Hauptverfasser: Song, Pin, Du, Jun, Ma, Xinliang, Shi, Yunmei, Fang, Xiaoyu, Liu, Daobin, Wei, Shiqiang, Liu, Zhanfeng, Cao, Yuyang, Lin, Bo, Di, Jun, Wang, Yan, Cui, Jiewu, Kong, Tingting, Gao, Chao, Xiong, Yujie
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container_title EcoEnergy (Richmond, Vic. Print)
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creator Song, Pin
Du, Jun
Ma, Xinliang
Shi, Yunmei
Fang, Xiaoyu
Liu, Daobin
Wei, Shiqiang
Liu, Zhanfeng
Cao, Yuyang
Lin, Bo
Di, Jun
Wang, Yan
Cui, Jiewu
Kong, Tingting
Gao, Chao
Xiong, Yujie
description 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.
doi_str_mv 10.1002/ece2.8
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title Design of Bi 4 O 5 Br 2 /g‐C 3 N 4 heterojunction for efficient photocatalytic removal of persistent organic pollutants from water
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