A facile approach to load CdSe nanocrystallites into mesoporous SBA-15

被引：42

作者：

Shan, Y ^{[1
]}

Gao, L ^{[1
]}

Zheng, S ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2004年 / 88卷 / 01期

关键词：

microporous materials; nanostructures; semiconductors;

D O I：

10.1016/j.matchemphys.2004.07.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdSe nanocrystallites have been successfully loaded inside the channel of SBA-15 by a two-step impregnation at room temperature. The method is safe and does not require any special equipment. XRD, N-2 adsorption-desorption isotherms, HRTEM, EDS, FTIR, and UV-vis absorption spectrum were used to characterize the structure of the composite materials. It is found that most of the CdSe nanocrystallites are about 7 nm, and they stretch along the channels of SBA-15 with the length varying from 10 to 40 nm. The CdSe nanocrystallites inside the SBA-15 hosts show a significant blue-shift in the UV-vis absorption spectrum. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：192 / 196

页数：5

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