引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 56次   下载 39 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Control-Growth and Photocatalytic Activities of Low-Dimensional Bi2Fe4O9 Crystals
Shao-wei Liang,Qing Yang*
Author NameAffiliationE-mail
Shao-wei Liang Hefei National Laboratory of Physical Sciences at the Microscale, Department of Chemistry & Laboratory of Nanomaterials for Energy Conversion, University of Science and Technology of China, Hefei 230026, China  
Qing Yang* Hefei National Laboratory of Physical Sciences at the Microscale, Department of Chemistry & Laboratory of Nanomaterials for Energy Conversion, University of Science and Technology of China, Hefei 230026, China qyoung@ustc.edu.cn 
Abstract:
Low-dimensional Bi2Fe4O9 nanosheets and microrods have been selectively prepared by a solvothermal method, from which the growth of the Bi2Fe4O9 crystals can be controlled by the variation of reaction conditions. Structure determination showed that the nanosheets are mainly exposed by {001} facets while the microrods are exposed by {110} facets. Ab- sorption spectra revealed that there are two bandgaps observed for both nanosheets (at 1.9 and 1.55 eV) and microrods (1.7 and 1.45 eV), and they both would be available for the sunlight photocatalysis e ciently due to the intensive absorption ability in a wide region. Photocatalytic investigation demonstrated that the overall photocatalytic performance of the microrods is prior to that of the nanosheets due to the variation of bandgaps and exposed facets. The present report provides a useful alternative strategy for the controlling growth of nanostructures and/or microcrystals besides the present demonstration of the Bi2Fe4O9 crystals with diflerent bandgaps and facets that would be able to tune the corresponding photocatalytic ability selectively.
Key words:  Bi2Fe4O9  Nanosheet  Microrod  Control growth  Photocatalyst
FundProject:This work was supported by the National Natu-ral Science Foundation of China (No.21571166 and No.51271173) and the National Basic Research Pro- gram of China (No.2012CB922001).
低维Bi2Fe4O9晶体的控制生长及其光催化性能研究
梁少伟,杨晴*
摘要:
关键词:  
DOI:10.1063/1674-0068/30/cjcp1704083
分类号: