CuCrO2的合成及其复合催化剂的光催化性能

刘宗园 王桂赟 刘先平 王延吉

引用本文: 刘宗园, 王桂赟, 刘先平, 王延吉. CuCrO2的合成及其复合催化剂的光催化性能[J]. 燃料化学学报, 2013, 41(12): 1473-1480. shu
Citation:  LIU Zong-yuan, WANG Gui-yun, LIU Xian-ping, WANG Yan-ji. Preparation of CuCrO2 and the photocatalytic properties of its composites[J]. Journal of Fuel Chemistry and Technology, 2013, 41(12): 1473-1480. shu

CuCrO2的合成及其复合催化剂的光催化性能

    通讯作者: 王桂赟,Tel:022-60202489,E-mail:wgy1964@hebut.edu.cn。
  • 基金项目:

    国家自然科学基金(21076058);河北省重大技术创新项目(12275603Z)。 

摘要: 以硝酸铬和硝酸铜为原料,通过半湿法经两种不同路径合成了CuCrO2半导体物质。分别采用热重-差示扫描(TG-DSC)、X射线衍射(XRD)、紫外-可见漫反射(UV-vis DR)、扫描电镜(SEM)及X射线光电子能谱(XPS)对样品进行了表征分析。确立了以氨水为Cr3+沉淀剂制得的氢氧化铬沉淀中加入硝酸铜溶液是合成CuCrO2较适宜的路径。借助TG-DSC和XRD的分析结果确立前驱体在热处理的过程中,含Cr物相的变化历程为Cr(OH)3 → CuCrO4 → CuCr2O4 → CuCrO2。通过机械研磨的方法合成了CuCrO2-WO3和CuCrO2-ZnO复合型催化剂,对其进行了XRD、SEM和XPS表征分析,并测试了复合催化剂的光催化活性。结果表明,与单独使用CuCrO2相比,无论是以高压汞灯,还是以氙灯为光源,CuCrO2-WO3和CuCrO2-ZnO的光催化产氢活性都有显著提高。

English

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  • 收稿日期:  2013-06-06
  • 网络出版日期:  2013-08-25
通讯作者: 陈斌, bchen63@163.com
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