RGO/g-C3N4/MoS2复合材料的制备及其光催化性能
Synthesis and Visible-Light Photocatalytic Activity of RGO/g-C3N4/MoS2 Composite Photocatalysts
作者单位E-mail
钟梓俊 暨南大学化学与材料学院化学系, 广州 510632  
许若鹏 暨南大学化学与材料学院化学系, 广州 510632  
黄浪欢 暨南大学化学与材料学院化学系, 广州 510632 thuanglh@jnu.edu.cn 
谭绍早 暨南大学化学与材料学院化学系, 广州 510632  
罗梓蓉 暨南大学化学与材料学院化学系, 广州 510632  
摘要: 通过热解-水热两步法制备了石墨烯/石墨相氮化碳/二硫化钼(RGO/g-C3N4/MoS2)复合材料并使用多种分析表征手段对RGO/g-C3N4/MoS2的结构、形貌及光催化性能进行分析。结果表明,具有异质结构的g-C3N4/MoS2与RGO复合后,通过良好的界面接触和电荷的快速转移,增强了其光生电子-空穴的分离。经可见光照射120 min后,RGO/g-C3N4/MoS2复合材料可降解97%亚甲基蓝。此外,循环实验表明RGO/g-C3N4/MoS2复合材料具有良好的稳定性,经5次循环仍能保持93.2%的光催化活性。
关键词: 光催化  氮化碳  二硫化钼  石墨烯  可见光
基金项目: 广东省科学技术厅(No.2016A010103047)资助项目。
Abstract: The reduced graphene oxide/graphitic carbon nitride/molybdenum disulfide composites (RGO/g-C3N4/MoS2) were synthesized via the pyrolysis-hydrothermal two-step method. The structures, morphologies and photocatalytic properties of as-prepared composites were characterized by various analytical characterization methods. With the good interface contact and rapid transfer of charge, the composites could enhance the photoelectron-hole separation. The results show that the GCM composites could degradation 97% methylene blue (MB) in 120 min under the irradiation of visible-light and the highest apparent reaction rate constant (k) value was 0.028 09 min-1. Moreover, the cycle experiments show that the composites had good stability and could maintained 93.2% photocatalytic activity after 5 cycles.
Keywords: photocatalysis  carbon nitride  molybdenum disulfide  graphene  visible light
投稿时间:2018-08-16 修订日期:2018-10-30
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钟梓俊,许若鹏,黄浪欢,谭绍早,罗梓蓉.RGO/g-C3N4/MoS2复合材料的制备及其光催化性能[J].无机化学学报,2019,35(1):73-81.
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