期刊
RESEARCH ON CHEMICAL INTERMEDIATES
卷 44, 期 11, 页码 6895-6906出版社
SPRINGER
DOI: 10.1007/s11164-018-3528-4
关键词
Pompon-like ZnO; Large surface area; Graphitic carbon nitride (g-C3N4); Composite photocatalyst; Heterojunction; RhB photodegradation
资金
- China Postdoctoral Science Foundation [2018M630334]
- Youth Science Foundation of Heilongjiang Province [QC2018048]
- University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province [UNPYSCT-2015073]
- Heilongjiang Postdoctoral Scientific Research Developmental Fund [LBH-Q17034]
- Cultivating Fund of Northeast Petroleum University for the Natural Science Foundation of China [2017PYQZL-05]
- Talents Start-up Funds of Northeast Petroleum University [rc201728, rc201731]
In this work, pompon-like structured g-C3N4/ZnO composite photocatalyst was fabricated by a two-step method and characterized through different characterization tools to determine the photophysical properties. It is discovered that the synthesized pompon-like g-C3N4/ZnO photocatalyst is composed of flake g-C3N4 coated on the pompon surface of ZnO to form a heterojunction structure. In the composite photocatalyst, the pompon ZnO has large surface area (41.81m(2)/g) which can provide more reactive sites for composite catalysts, the g-C3N4 can absorb the visible light which can effectively expand the absorption range of the composite, and the heterostructure formed between g-C3N4 and pompon ZnO can effectively reduce the coincidence efficiency of photo-generated carriers. The photocatalytic performance of pompon-like g-C3N4/ZnO photocatalyst was evaluated by photocatalytic degradation of rhodamine B (RhB) organic dyes under simulated solar light irradiation and the optimum doping amount of g-C3N4 is 10%. The stability of the composite photocatalyst was tested by five runs of RhB photodegradation under simulated visible light.
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