Boosted photocatalytic removal of Cr(VI) using MoS2 modified g-C3N4/ZnFe2O4 magnetic heterojunction composites

被引：0

作者：

Wang, Xiaodong ^{[1
]}

Dai, Yongxun ^{[1
]}

Tian, Chen ^{[1
]}

Zhang, Huize ^{[1
]}

Li, Xiwen ^{[1
]}

Liu, Wenlong ^{[1
]}

Li, Weibing ^{[1
]}

Kuang, Shaoping ^{[1
]}

Tong, Hongtao ^{[2
]}

机构：

[1] School of Environment and Safety Engineering, Qingdao University of Science and Technology, 53# Zhengzhou Road, Qingdao,266042, China

[2] State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Wenhai Road, Qingdao,266237, China

来源：

Process Safety and Environmental Protection | 2022年 / 162卷

关键词：

Ball milling - Chromium compounds - Heterojunctions - Iron compounds - Layered semiconductors - Light absorption - Magnetism - Molybdenum compounds;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Photocatalysts can be effectively recovered and reused by compounding with magnetic nanostructures. How to further improve the photocatalytic performance of magnetic heterojunction photocatalysts remains a great challenge. In this work, g-C3N4/ZnFe2O4 (CN/ZFO) magnetic heterojunction photocatalyst was first prepared and then modified with ultrathin MoS2 (CN/ZFO/MoS2) by simple ball-milling method. Then the photocatalytic removal of Cr(Ⅵ) performance of the prepared series photocatalysts was evaluated in detail. The optimum CN/ZFO/MoS2 can achieve 99.3% Cr(Ⅵ) removal under 200-min simulated sunlight illumination, which is much higher than CN/ZFO (54.0%). The enhanced photocatalytic performance benefits from the modification of MoS2, which improves the light absorption performance, facilitates the transfer of photogenerated carriers, increases the concentration of photogenerated carriers and promotes the effective separation of photogenerated carriers. This work provides a theoretical basis for further preparation of magnetic recyclable photocatalysts with high photocatalytic performance. © 2022 The Institution of Chemical Engineers

引用

页码：72 / 82