光催化
罗丹明B
异质结
材料科学
可见光谱
废水
降级(电信)
化学工程
吸收(声学)
复合数
化学
光电子学
复合材料
环境工程
催化作用
有机化学
计算机科学
工程类
电信
作者
Thirugnanam Bavani,Mani Preeyanghaa,Bernaurdshaw Neppolian,Jagannathan Madhavan,Balaji Dhandapani
标识
DOI:10.1002/cptc.202300024
摘要
Abstract There is a growing demand for efficient methods to decrease hazardous organic contaminants in wastewater. Herein, a novel S‐scheme WS 2 /BiOI heterojunction photocatalyst was prepared by a one‐pot solvothermal process. The structural morphology, crystal structure and optical absorption studies were studied. The sugar‐like nanocrystals of WS 2 are deposited on 3D‐BiOI marigold flowers, providing high surface area with increased visible light absorption. The photocatalytic activity of the synthesized materials was studied by visible light degradation of Rhodamine‐B (RhB). The optimized 20 wt.% WS 2 in the composite photocatalyst (band gap 2.25 eV) exhibited a 98.9 % photocatalytic degradation activity with a rate constant of 0.0940 min −1 with performance retained after 3 consecutive recycling runs. Photoelectrochemical studies revealed excellent stability, increased separation and migration ability of charge carriers with lower charge resistance in the optimized WS 2 /BiOI photocatalyst.
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