IMR OpenIR
Template-free solvothermal synthesis of WO3/WO3 center dot H2O hollow spheres and their enhanced photocatalytic activity from the mixture phase effect
Y. Liu; Q. Li; S. Gao; J. K. Shang
2014
Source PublicationCrystengcomm
ISSN1466-8033
Volume16Issue:32Pages:7493-7501
AbstractWell-defined WO3 center dot H2O hollow spheres composed of nanoflakes were successfully synthesized by a template-free solvothermal process with i-PrOH-H2O mixture solvent. In this process, the tungsten precursor was firstly hydrolyzed to form solid spheres composed of both WO3 center dot 2H(2)O and WO3 center dot H2O phases. Then, these solid spheres underwent an Ostwald ripening process and the WO3 center dot 2H(2)O phase was dehydrated to WO3 center dot H2O at the same time to form hollow spheres with a pure WO3 center dot H2O phase. With appropriate calcination temperature, hollow spheres with WO3 (major) and WO3 center dot H2O (minor) mixture phases were created. These hollow spheres with WO3 and WO3 center dot H2O mixture phases demonstrated a largely enhanced photocatalytic activity for RhB degradation under visible light irradiation compared with either pure WO3 center dot H2O hollow spheres or pure WO3 hollow spheres which could be attributed to the matched band structure between the WO3 and WO3 center dot H2O phases. Thus, an effective charge carrier separation can occur between the WO3 and WO3 center dot H2O phases of these hollow spheres under visible light irradiation, contributing to the observed largely enhanced photocatalytic performance.
description.department[liu, yang ; li, qi ; gao, shian ; shang, jian ku] chinese acad sci, inst met res, shenyang natl lab mat sci, environm funct mat div, shenyang 110016, peoples r china. [shang, jian ku] univ illinois, dept mat sci & engn, urbana, il 61801 usa. ; liu, y (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, environm funct mat div, shenyang 110016, peoples r china. ; qili@imr.ac.cn
KeywordLow-temperature Synthesis Tungsten-oxide Visible-light Tio2 Anatase Fabrication Rutile Nanostructures Transformation Microspheres
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73315
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Y. Liu,Q. Li,S. Gao,et al. Template-free solvothermal synthesis of WO3/WO3 center dot H2O hollow spheres and their enhanced photocatalytic activity from the mixture phase effect[J]. Crystengcomm,2014,16(32):7493-7501.
APA Y. Liu,Q. Li,S. Gao,&J. K. Shang.(2014).Template-free solvothermal synthesis of WO3/WO3 center dot H2O hollow spheres and their enhanced photocatalytic activity from the mixture phase effect.Crystengcomm,16(32),7493-7501.
MLA Y. Liu,et al."Template-free solvothermal synthesis of WO3/WO3 center dot H2O hollow spheres and their enhanced photocatalytic activity from the mixture phase effect".Crystengcomm 16.32(2014):7493-7501.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Y. Liu]'s Articles
[Q. Li]'s Articles
[S. Gao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Y. Liu]'s Articles
[Q. Li]'s Articles
[S. Gao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Y. Liu]'s Articles
[Q. Li]'s Articles
[S. Gao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.