期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 775, 期 -, 页码 248-258出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.10.056
关键词
Density functional theory; Co-doped; Fe3O4-QDs; Photocatalytic degradation; Oxidation-reduction centre; Quantum effect
资金
- National Natural Science Foundation of China [21676127, U1662125]
- Natural Science Foundation of Jiangsu Province [BK20170532, BK20170880, BK20181231]
A new Co-doped and Fe3O4 quantum dots (QDs) decorated g-C3N4 (CN) photocatalyst applied in the tetracycline degradation under visible light irradiation, is designed and synthesized. The Fe3O4-QDs@Co-CN enhanced photocatalytic activity and cycling ability in comparison with individual CN significantly. It revealed a synergistic effect between the formation of Fe3O4-QDs and Co-doping. Results of characterization insight into the reason that Co-doped can regulate the band gap of CN, which has been proved by XPS and density functional theory (DFT). Moreover, the oxidation-reduction centre of Fe3O4-QDs with quantum effect can significantly boost the absorption of visible light and utilization electrons. Therefore, this work provides a broadening window for photo harvesting, charge using and separation during photocatalytic reactions. (C) 2018 Published by Elsevier B.V.
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