Preparation of silver-loaded graphene composites and their photocatalytic performance
ZHANG Ping-hua1, LI Meng-ting1, CHEN Jian-jun2, WANG Hong-yan1, SHI Hong-wei1, YAN Yun-jie1, JIANG Tao1
1. School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 234000, China; 2. School of Chemical Engineering, Sichuan University, Chengdu 610025, China
Abstract: With graphite powder as raw material, graphene oxide is made by means of the modified Hummers method.Silver is loaded on the prepared graphene via chemical reduction method.And then the samples are characterized through scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and UV-Vis spectroscopy.The results show that silver ions and graphene oxide are successfully reduced by sodium citrate into silver-loaded graphene composites with the size of silver particles ranging from 4 nm to 16 nm.Methyl orange is used as the degradation target to explore the photocatalytic performance, stability and recovery rate of the samples under visible light.The experimental results show that the composite with a loading amount of silver being 100% has the best photocatalytic performance, the strongest activity and the higher recovery rate.
张萍花, 李梦婷, 陈建钧, 王红艳, 史洪伟, 燕云洁, 姜桃. 银负载石墨烯复合材料的制备及光催化性能研究[J]. 现代化工, 2018, 38(9): 81-84,86.
ZHANG Ping-hua, LI Meng-ting, CHEN Jian-jun, WANG Hong-yan, SHI Hong-wei, YAN Yun-jie, JIANG Tao. Preparation of silver-loaded graphene composites and their photocatalytic performance. Modern Chemical Industry, 2018, 38(9): 81-84,86.
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