| 可见光增强g-C_3N_4/Co_3O_4胶体催化剂的催化产氢性能 |
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| 引用本文： | 张新东,冯晋阳,范丽君,王宇晶,柴守宁.可见光增强g-C_3N_4/Co_3O_4胶体催化剂的催化产氢性能[J].工业催化,2018,26(8):48-51. |
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| 作者姓名： | 张新东 冯晋阳 范丽君 王宇晶 柴守宁 |
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| 作者单位： | 1.西安工业大学材料与化工学院,陕西 西安 710021;2.西安建筑科技大学理学院,陕西 西安 710055 |
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| 基金项目： | 陕西省教育厅专项科研计划项目(15JK1383); 金川公司-西安建筑科技大学预研基金项目(YY1507) |
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| 摘 要： | 通过水热法制备了具有可见光增产氢高性能的g-C_3N_4/Co_3O_4胶体催化剂,采用XRD、TEM、SEM和EDS等分析样品的组成和形貌结构。催化产氢结果表明,光照条件下g-C_3N_4/Co_3O_4胶体催化剂具有极高的催化产氢活性,TOF值高达58.2 min~(-1),通过拟合温度动力学曲线,得到了催化反应的活化能为15.73 kJ·mol~(-1)。对样品进行UV-vis和PL测试发现,g-C_3N_4/Co_3O_4胶体催化剂具有极高的光能利用率和电子-空穴分离率,并进一步阐述了光能促进催化产氢的作用机理。
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| 关 键 词： | 催化化学 光增强 催化产氢 g-C3N4/Co3O4胶体催化剂 |
Hydrogen production over g-C3N4/Co3O4 colloidal catalyst enhanced by visible light |
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| Zhang Xindong,Feng Jinyang,Fan Lijun,Wang Yujing,Chai Shouning.Hydrogen production over g-C3N4/Co3O4 colloidal catalyst enhanced by visible light[J].Industrial Catalysis,2018,26(8):48-51. |
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| Authors: | Zhang Xindong Feng Jinyang Fan Lijun Wang Yujing Chai Shouning |
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| Affiliation: | 1.School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an 710021,Shaanxi,China;2.College of Science, Xi'an University of Architecture and Technology, Xi'an 710055,Shaanxi,China; |
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| Abstract: | g-C3N4/Co3O4 colloidal catalyst with enhanced hydrogen production by visible light was prepared via hydrothermal-reduction process and characterized by XRD,TEM,SEM and EDS to investigate the component and morphology of catalyst.The results showed that g-C3N4/Co3O4 colloidal catalyst had premium catalytic activity for hydrogen production under visible light irradiation,and its TOF value was as high as 58.2 min-1.Activation energy of the catalyst was 15.73 kJ·mol-1 obtained by fitting temperature and kinetics curve.UV-vis and PL tests found that the composite catalyst had high light utilization rate and electron hole separation rate,which further illuminated mechanism of light improving catalytic activity. |
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| Keywords: | catalytic chemistry optical enhancement catalytic hydrogen production g-C3N4/Co3O4 colloidal catalyst |
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