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原位合成具有高可见光催化活性的C3N4/CdS纳米复合材料

崔言娟

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引用本文: 崔言娟. 原位合成具有高可见光催化活性的C3N4/CdS纳米复合材料[J]. 催化学报, 2015, 36(3): 372-379. doi: 10.1016/S1872-2067(14)60237-0 shu
Citation:  Yanjuan Cui. In-situ synthesis of C3N4/CdS composites with enhanced photocatalytic properties[J]. Chinese Journal of Catalysis, 2015, 36(3): 372-379. doi: 10.1016/S1872-2067(14)60237-0 shu

原位合成具有高可见光催化活性的C3N4/CdS纳米复合材料

    通讯作者: 崔言娟
  • 基金项目:

    江苏省自然科学基金(BK20140507). (BK20140507)

摘要: 以硫氰酸铵和氯化镉为原料, 采用无模板混合高温煅烧法一步合成氮化碳/硫化镉纳米晶(C3N4/CdS)的复合半导体材料.采用X射线衍射、傅立叶变换红外光谱和透射电镜等技术对其结构和形貌进行了表征.以有机污染物罗丹明B (RhB)为模拟污染物对复合催化剂的可见光催化活性进行测试.结果表明, C3N4/CdS复合材料中CdS以六方相纳米晶的形式均匀分散; CdS的复合基本不改变C3N4主体结构及聚合度; 与纯C3N4相比, 复合材料在可见区的光吸收能力有所增强.合适的能带匹配有利于光生载流子的迁移, 抑制了其复合速率.在可见光照射下, 复合半导体能够更加快速的降解有机污染物, 且保持很好的稳定性.

English

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  • 发布日期:  2015-03-20
  • 收稿日期:  2014-08-31
  • 网络出版日期:  2014-10-08
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