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

Shan  Y; Gao  L; Zheng  S

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

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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.

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《Materials Chemistry and Physics》 |2004年第1期|192-196|共5页
作者
Shan Y; Gao L; Zheng S;
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作者单位

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

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
microporous materials; nanostructures; semiconductors; CHEMICAL SOLUTION DEPOSITION; MCM-41; SILICA; NANOPARTICLES; CONFINEMENT; FILMS; ROUTE;

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

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