Degradation of methylene blue by graphene oxide under visible-light irradiation
Liu Yangyang1,Gu Baoshan1,Zheng Yanyin1,2,Liang Dongming1,Yang Peiyan1,Zhang Qifu1
1.New Metallurgy High-Tech Group Co.,Ltd.,Beijing 100081;
2.School of Materials Science and Engineering,Hebei University of Science & Technology,Shijiazhuang 050000
Abstract: The graphene oxide was prepared by modified Hummer method.Its microstructure,composition and structure were characterized and the photocatalytic efficiency was tested using methylene blue solution.SEM,TEM and raman analysis showed that few layer graphene oxide was obtained,and the ratio of carbon to oxygen was about 3∶1.Fluorescence confocal spectroscopy showed that the dispersion of graphene oxide had characteristic absorption peaks in the range of 420~700nm.It was found that the methylene blue molecule was rapidly adsorbed then degraded by the graphene oxide under visible light.The degradation efficiency could reach 40% when the catalyst concentration was 10mg/L and the concentration of methylene blue was 40mg/L.Its photocatalytic mechanism was also discussed then.
刘洋洋, 顾宝珊, 郑艳银, 梁东明, 杨培燕, 张启富. 氧化石墨烯对亚甲基蓝的可见光催化降解[J]. 化工新型材料, 2019, 47(3): 211-215.
Liu Yangyang, Gu Baoshan, Zheng Yanyin, Liang Dongming, Yang Peiyan, Zhang Qifu. Degradation of methylene blue by graphene oxide under visible-light irradiation. New Chemical Materials, 2019, 47(3): 211-215.
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