Citation: Pengpeng Qiu, Tao Zhao, Xiaohang Zhu, Binota Thokchom, Jianping Yang, Wan Jiang, Lianjun Wang, Yuchi Fan, Xiaopeng Li, Wei Luo. A confined micro-reactor with a movable Fe₃O₄ core and a mesoporous TiO₂ shell for a photocatalytic Fenton-like degradation of bisphenol A[J]. Chinese Chemical Letters, ;2021, 32(4): 1456-1461. doi: 10.1016/j.cclet.2020.09.061 shu

A confined micro-reactor with a movable Fe₃O₄ core and a mesoporous TiO₂ shell for a photocatalytic Fenton-like degradation of bisphenol A

Pengpeng Qiu ^a ,
Tao Zhao ^a ,
Xiaohang Zhu ^a ,
Binota Thokchom ^b ,
Jianping Yang ^a ,
Wan Jiang ^a ,
Lianjun Wang ^a ,
Yuchi Fan ^a ,
Xiaopeng Li ^{a, *,} ,
Wei Luo ^{a, *,}

a.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Shanghai 201620, China
b.
Indian Institute of Technology Guwahati, Guwahati 781039, India

xiaopeng.li@dhu.edu.cn

wluo@dhu.edu.cn

Received Date: 24 August 2020
Revised Date: 21 September 2020
Accepted Date: 30 September 2020
Available Online: 1 October 2020

Figures(5)

Photocatalysis and Fenton process are two primary and promising advanced oxidation processes to degrade organic pollutants. However, the practical applications of single photocatalysis and Fenton process are still limited. Introducing one of them into another to form a combined photocatalytic Fenton-like system has shown great potential but still faces challenges in designing a well-tailored catalyst. Herein, a confined photocatalytic Fenton-like micro-reactor catalyst with a movable Fe₃O₄ core and a mesoporous TiO₂ shell has been constructed via a successive Stöber coating strategy, followed by an ultrasound assisted etching method. The resulting micro-reactor possesses well-defined yolk-shell structures with uniform mesopores (~4 nm), a large Brunauer-Emmett-Teller (BET) surface area (~166.7 m²/g), a high pore volume (~0.56 cm³/g) and a strong magnetization (~51 emu/g), as well as tunable reactor sizes (20−90 nm). When evaluated for degrading bisphenol A under solar light in the presence of peroxymonosulfate, the micro-reactor exhibits a superior catalytic degradation performance with a high magnetic separation efficiency and an excellent recycle ability. The outstanding performance can be attributed to its unique textual structure, which leads to a great synergistic effect from the photocatalytic and Fenton-like process. This study gives an important insight into the design and synthesis of an advanced micro-reactor for a combined advanced oxidation processes (AOPs).
- Photocatalytic Fenton-like reaction,
- Yolk-shell,
- Micro-reactor,
- Magnetic,
- Mesoporous
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A confined micro-reactor with a movable Fe3O4 core and a mesoporous TiO2 shell for a photocatalytic Fenton-like degradation of bisphenol A

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通讯作者: 陈斌, bchen63@163.com

A confined micro-reactor with a movable Fe₃O₄ core and a mesoporous TiO₂ shell for a photocatalytic Fenton-like degradation of bisphenol A