Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles
	Li, ZJ ; Hou, B ; Xu, Y ; Wu, D ; Sun, YH ; Hu, W ; Deng, F
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2005-05-01
卷号	178 期号:5 页码:1395-1405
关键词	titania silica sol-gel hydrothermal nanoparticles photocatalytic
英文摘要	Titania-silica composite nanoparticles were prepared by sol-gel-hydrothermal and sol-gel routes, respectively, and their physicochemical and photocatalytic properties were compared. The results of XRD, TEM and BET surface areas showed that sol-gel-hydrothermal route led to anatase titania-silica composite nanoparticles with large specific surface area, but the sol-gel route tended to form mixture of anatase and rutile. The composite nanoparticles prepared by sol-gel-hydrothermal route had better thermal stability against phase transformation from anatase to rutile, agglomeration and particle growth than those prepared by sol-gel route. On the basis of XRD, FT-IR, XPS and Si-29 MAS-NMR, a strong interaction was found between SiO2 and TiO2, and Ti-O-Si bonds formed during both the two routes. But more Ti-O-Si bonds formed in the composite nanoparticles prepared by sol-gel-hydrothermal route than those prepared by sol-gel route. As a result, the titania-silica composite nanoparticles prepared by sol-gel-hydrothermal route exhibited higher photocatalytic activity in decomposition of methylene blue than that prepared by sol-gel route, and it had excellent photocatalytic activity even after calcined at 1000 &DEG; C. © 2004 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Inorganic & Nuclear ; Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	PHOTOCATALYTIC ACTIVITY ; TIO2 NANOPARTICLES ; PHASE-TRANSFORMATION ; MIXED OXIDES ; NANOCRYSTALLINE ; TIO2/SIO2 ; SURFACE ; SPECTROSCOPY ; DEGRADATION ; PARTICLES
收录类别	SCI
语种	英语
WOS记录号	WOS:000228934800007
公开日期	2015-07-28
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/4555]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, State Key Lab Magnet Resonance & Atom Mol Phys, Inst Phys & Mat, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Li, ZJ,Hou, B,Xu, Y,et al. Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles[J]. JOURNAL OF SOLID STATE CHEMISTRY,2005,178(5):1395-1405.
APA	Li, ZJ.,Hou, B.,Xu, Y.,Wu, D.,Sun, YH.,...&Deng, F.(2005).Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles.JOURNAL OF SOLID STATE CHEMISTRY,178(5),1395-1405.
MLA	Li, ZJ,et al."Comparative study of sol-gel-hydrothermal and sol-gel synthesis of titania-silica composite nanoparticles".JOURNAL OF SOLID STATE CHEMISTRY 178.5(2005):1395-1405.