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人工晶体学报 ›› 2017, Vol. 46 ›› Issue (11): 2164-2168.

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ZnS/g-C3N4复合型催化剂的制备及其可见光光催化性能

刘勇;李江华;李子黎;黄明;郑小刚;由耀辉;付孝锦   

  1. 内江师范学院化学化工学院,内江,641100
  • 出版日期:2017-11-15 发布日期:2021-01-20
  • 基金资助:
    国家自然科学基金(21506103);四川省教育厅重点项目(17ZA0218)

Synthesis of ZnS/g-C3N4 Compound Catalyst and Its Photocatalytic Properties under Visible-light Irradiation

LIU Yong;LI Jiang-hua;LI Zi-li;HUANG Ming;ZHENG Xiao-gang;YOU Yao-hui;FU Xiao-jin   

  • Online:2017-11-15 Published:2021-01-20

摘要: 利用共沉淀的方法制备了ZnS/g-C3N4复合型催化剂,并考察其在可见光区对罗丹明B的光降解性能的影响机制.采用TEM、BET、XRD、ICP、FT-IR和XPS等分析手段表征了样品,并评价了样品的光催化活性.结果表明,与g-C3N4相比,ZnS负载量为5wt;的ZnS/g-C3N4催化剂活性会更高一些,且经过四次循环实验后样品的光催化性能未明显失活.这可能归因于ZnS和g-C3N4所形成的异质结构提高了光催化效率.

关键词: ZnS/g-C3N4;光催化剂;罗丹明B

Abstract: ZnS/g-C3N4 samples were successfully synthesized via coprecipitation method,and performed on the photodegredation mechanism of rhodamine B under visible-light region.The as-prepared samples were characterized by several techniques such as TEM,BET,XRD,ICP,FT-IR and XPS.The results show that the activity of the catalyst with loading 5wt; ZnS is the best;after four recycle experiments,the photocatalytic activity of the samples is not significantly inactivate.It is attributed that the herterojunction formed by ZnS and g-C3N4 compound improve the photocatalytic activity.

Key words: ZnS/g-C3N4 samples were successfully synthesized via coprecipitation method,and performed on the photodegredation mechanism of rhodamine B under visible-light region.The as-prepared samples were characterized by several techniques such as TEM,BET,XRD,ICP,FT-IR and XPS.The results show that the activity of the catalyst with loading 5wt; ZnS is the best;after four recycle experiments,the photocatalytic activity of the samples is not significantly inactivate.It is attributed that the herterojunction formed by ZnS and g-C3N4 compound improve the photocatalytic activity.

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