Size-dependent optical properties and enhanced visible light photocatalytic activity of wurtzite CdSe hexagonal nanoflakes with dominant {001} Facets
发布时间：2024-08-09
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- 所属单位：
- 化学与化工学院
- 发表刊物：
- Journal of Alloys and Compounds
- 关键字：
- 中文关键字：CdSe片，选择性吸附，油胺，光学性质，光催化性质，英文关键字：CdSe hexagonal nanoflakes；Selective adsorption；Ole
- 摘要：
- CdSe hexagonal nanoflakes have been synthesized via a reaction of CdCl2- oleylamine with Se-tri-n-octylphosphine at 300°C for 30min. The CdSe hexagonal nanoflakes with the typical side lengths of 9.5 to 12.3nm are single-crystalline wurtzite structure and are enclosed by {001} top and down surfaces. Size control of the CdSe nanoflakes from 3.3 to 18.6 nm is achieved by adjusting reaction temperature and time, and the size-dependent absorption and photoluminescence properties are observed. The formation of CdSe hexagonal nanoflakes results from the selective adsorption of oleylamine on the (001) prismatic facet. The as-obtained CdSe nanoflakes with exposed {001} facets show higher photocatalytic activity than CdSe commercial powders for degradation of malachite green. The present study motivates us to further explore new synthetic methods for the preparation of other II-VI semiconductor with a high percentage of reactive facets.
- 备注：
- 韩果萍
- 合写作者：
- GuopingHan,LinWang,CuijinPei,RuyuShi,BinL
- 第一作者：
- 韩果萍
- 论文类型：
- 期刊论文
- 卷号：
- 卷：
- 期号：
- 期：610
- 页面范围：
- 页：62-68
- 是否译文：
- 否
- 发表时间：
- 2014-04-01