Metal–Organic-Framework-Derived Ball-Flower-like Porous Co3O4/Fe2O3 Heterostructure with Enhanced Visible-Light-Driven Photocatalytic Activity

Qi Cao; Qingqing Li; Zhichao Pi; Jing Zhang; Li-Wei Sun; Junzhou Xu; Yunyi Cao; Junye Cheng; Ye Bian

doi:10.3390/nano12060904

Nanomaterials (Mar 2022)

Metal–Organic-Framework-Derived Ball-Flower-like Porous Co3O4/Fe2O3 Heterostructure with Enhanced Visible-Light-Driven Photocatalytic Activity

Qi Cao,
Qingqing Li,
Zhichao Pi,
Jing Zhang,
Li-Wei Sun,
Junzhou Xu,
Yunyi Cao,
Junye Cheng,
Ye Bian

Affiliations

Qi Cao: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China
Qingqing Li: Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
Zhichao Pi: State-Operated Wuhu Machinery Plant, Wuhu 241099, China
Jing Zhang: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China
Li-Wei Sun: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China
Junzhou Xu: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China
Yunyi Cao: Department of Intelligent Development Platform, Laundry Appliances Business Division of Midea Group, Wuxi 214028, China
Junye Cheng: School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
Ye Bian: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Wuxi Engineering Research Center of Taihu Lake Water Environment, Southeast University, Nanjing 210096, China

DOI: https://doi.org/10.3390/nano12060904
Journal volume & issue: Vol. 12, no. 6
p. 904

Abstract

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A porous ball-flower-like Co3O4/Fe2O3 heterostructural photocatalyst was synthesized via a facile metal–organic-framework-templated method, and showed an excellent degradation performance in the model molecule rhodamine B under visible light irradiation. This enhanced photocatalytic activity can be attributed to abundant photo-generated holes and hydroxyl radicals, and the combined effects involving a porous structure, strong visible-light absorption, and improved interfacial charge separation. It is notable that the ecotoxicity of the treated reaction solution was also evaluated, confirming that an as-synthesized Co3O4/Fe2O3 catalyst could afford the sunlight-driven long-term recyclable degradation of dye-contaminated wastewater into non-toxic and colorless wastewater.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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