ZnO改性技术及其光催化性能研究进展

 朱丽1,2

(1.云南开放大学,云南 昆明 650500;2.云南国防工业职业技术学院,云南 昆明 650500)
摘要:纯ZnO由于禁带宽度较大,太阳光利用率不足;光生电子空穴复合率较高等缺点在实际应用中受到限制。为了提高ZnO对太阳光的利用率以及抑制其光生电子空穴复合,对纯ZnO改性十分必要。首先综述了纯ZnO形貌控制的最新研究成果,研究结果表明通过控制制备工艺,生成特殊形貌,改变ZnO团聚的缺点,使得光降解效率增加。然后重点针对ZnO的分离子掺杂改性、贵金属沉积改性和半导体复合改性等相关改性研究进展进行了综述,研究结果表明纯ZnO改性后能有效提高其光催化性能。
关键词:光催化性能;ZnO;改性
中图分类号:TN304.1/.99 文献标志码:A doi:10.3969/j.issn.1006-0316.2019.04.012
文章编号:1006-0316 (2019) 04-0058-06
Development of Modification Technology of ZnO and its Photocatalytic Property
ZHU Li1,2
(1.Yunnan Open University, Kunming 650223, China;2.Yunnan Polytechnic College of National Defense Industry,Kunming 650500, China )
Abstract:Due to the large forbidden band width of ZnO, the utilization of solar light is insufficient, and the shortcomings of photogenerated electron hole recombination are limited in practical applications. In order to improve the utilization of ZnO for sunlight and to suppress the photo-generated electron-hole recombination, it is necessary to modify pure ZnO. In this paper, the latest research results of pure ZnO morphology control are reviewed. The results show that the photodegradation efficiency is increased by controlling the preparation process, generating special morphology and changing the defects of ZnO agglomeration. Then the research progress of related modification of ZnO, such as doping modification, noble metal deposition modification and semiconductor composite modification, is reviewed. The results show that pure ZnO can effectively improve its photocatalytic performance.
Key words:photocatalytic performance;ZnO;modification
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收稿日期:2018-11-20
基金项目:云南省科技计划项目青年项目(2014FD042);云南省教育厅科学研究基金(2014C086Y)
作者简介:朱丽(1984-),女,云南昆明人,硕士,讲师,主要研究方向为纳米材料及其应用。
 

 

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