Enhanced photo-Fenton-like process over Z-scheme CoFe₂O₄/g-C₃N₄ Heterostructures under natural indoor light
Date
2016
Authors
Yao, Y.
Wu, G.
Lu, F.
Wang, S.
Hu, Y.
Zhang, J.
Huang, W.
Wei, F.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Environmental Science and Pollution Research, 2016; 23(21):21833-21845
Statement of Responsibility
Yunjin Yao, Guodong Wu, Fang Lu, Shaobin Wang, Yi Hu, Jie Zhang, Wanzheng Huang, Fengyu Wei
Conference Name
Abstract
Low-cost catalysts with high activity and stability toward producing strongly oxidative species are extremely desirable, but their development still remains a big challenge. Here, we report a novel strategy for the synthesis of a magnetic CoFe2O4/C3N4 hybrid via a simple self-assembly method. The CoFe2O4/C3N4 was utilized as a photo-Fenton-like catalyst for degradation of organic dyes in the presence of H2O2 under natural indoor light irradiation, a green and energy-saving approach for environmental cleaning. It was found the CoFe2O4/C3N4 hybrid with a CoFe2O4: g-C3N4 mass ratio of 2:1 can completely degrade Rhodamine B nearly 100 % within 210 min under room-light irradiation. The effects of the amount of H2O2 (0.01-0.5 M), initial dye concentration (5-20 mg/L), solution pH (3.08-10.09), fulvic acid concentration (5-50 mg/L), different dyes and catalyst stability on the organic dye degradation were investigated. The introduction of CoFe2O4 on g-C3N4 produced an enhanced separation efficiency of photogenerated electron - hole pairs by a Z-scheme mechanism between the interfaces of g-C3N4 and CoFe2O4, leading to an excellent activity as compared with either g-C3N4 or CoFe2O4 and their mixture. This study demonstrates an efficient way to construct the low-cost magnetic CoFe2O4/C3N4 heterojunction as a typical Z-scheme system in environmental remediation.
School/Discipline
Dissertation Note
Provenance
Description
Published online: 14 August 2016
Access Status
Rights
© Springer-Verlag Berlin Heidelberg 2016