[1]蒋青青,宋志,胡军成.微乳法制备超细Cu2+1O/ZnO 复合光 催化剂及其可见光光催化性能研究[J].徐州工程学院学报(自然科学版),2019,(03):69-76.
 JIANG Qingqing,SONG Zhi,HU Juncheng.Preparation of Ultrafine Cu2+1O/ZnO Composite Photocatalyst by Microemulsion Method and Its Visible Light Photocatalytic Activity[J].Journal of Xuzhou Institute of Technology(Natural Sciences Edition),2019,(03):69-76.
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微乳法制备超细Cu2+1O/ZnO 复合光 催化剂及其可见光光催化性能研究()
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《徐州工程学院学报》(自然科学版)[ISSN:1674-358X/CN:32-1789/N]

卷:
期数:
2019年03期
页码:
69-76
栏目:
应用基础研究
出版日期:
2019-09-15

文章信息/Info

Title:
Preparation of Ultrafine Cu2+1O/ZnO Composite Photocatalyst by Microemulsion Method and Its Visible Light Photocatalytic Activity
文章编号:
1674-358X(2019)03-0069-08
作者:
蒋青青1宋志2胡军成1
(1.中南民族大学 化学与材料科学学院,湖北 武汉430074; 2.武汉有机实业有限公司,湖北 武汉430082)
Author(s):
JIANG Qingqing1SONG Zhi2HU Juncheng1
(1.College of Chemistry and Materials Science,South-Central University for Nationalities,Wuhan 430074,China; 2.Wuhan YouJi Industries Company Limited,Wuhan 430082,China)
关键词:
Cu2+1O ZnO 微乳液合成 光催化降解
Keywords:
Cu2+1O ZnO microemulsion synthesis photocatalytic degradation
分类号:
O643.36
文献标志码:
A
摘要:
构建Cu2O/ZnO 异质结复合材料,能增强光催化过程的电荷分离能力,显著 提高材料的光催化活性.与以往的工作相比,该研究的主要创新点为:1)微乳法合成具有大比 表面积的超细Cu2O 纳米球,其平均尺寸为20~50 nm,比表面积高达48.7 m2/g; 2)合成的Cu2O材料是一种含金属铜的Cu2+1O,金 属与半导体氧化物之间形成肖特基势垒,进一步增强材料的光催化活性.制备的 Cu2+1O/ZnO 复合光催化剂对于甲基橙(MO)降解表现出优异性能,其最大吸附和 降解能力达到500 mg/g,而文献上报道的最大吸附和降解能力仅为20 mg/g.Cu2+1O/ZnO 复合材料优异的光催化性能主要归因于异质结与肖特基结的 构建,使得光生电荷有效分离; 超细结构使得表面活性位数目增加.
Abstract:
The creation of Cu2O/ZnO composite has demonstrated to be an efficient approach to enhance photocatalytic activity because of the improved charge carrier separation.Compared with previous works,the main creative points in this work are:1)the Cu2O nanospheres are produced by microemulsion method,therefore,these Cu2O samples possess ultrasmall particle size of 20~50 nm and large specific surface area of 48.7 m2/g; 2)the as synthesized Cu2O is a copper rich phase Cu2+1O which can make a schottky barrier for promoting the photocatalytic performance.The Cu2+1O/ZnO composites demonstrated remarkable absorption and photodegradation activities of methyl orange(MO).The maximum adsorption and degradation capability of MO reached 500 mg/g while the maximum adsorption and degradation capabilities were only 20 mg/g by previous report.The excellent performance was mainly attributed to the enlarged number of active sites present on the catalyst surface and efficient separation of the photogenerated charge carriers.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-04-15 基金项目:国家自然科学基金项目(21806187); 中南民族大学中央高校基本科研业务费专项 资金项目(CZT19004) 作者简介:蒋青青(1986-),女,讲师,博士,主要从事光催化研究.
更新日期/Last Update: 2019-09-15