活性纳米金颗料在介孔分子筛SBA-15上的分散

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活性纳米金颗料在介孔分子筛SBA-15上的分散

周丽绘^a; 胡军^a; 谢颂海^b; 刘洪来^a

^a State Key Laboratory of Chemical Engineering and Department of Chemistry, East China
University of Science and Technology, Shanghai 200237, China
^b Department of Chemistry, Fudan University, Shanghai 200433, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-08-28 发布日期:2007-08-28
通讯作者: 周丽绘

Dispersion of active Au nanoparticles on mesoporous SBA-15 materials

ZHOU Lihui^a; HU Jun^a; XIE Songhai^b; LIU Honglai^a

^a State Key Laboratory of Chemical Engineering and Department of Chemistry, East China
University of Science and Technology, Shanghai 200237, China
^b Department of Chemistry, Fudan University, Shanghai 200433, China

Received:1900-01-01 Revised:1900-01-01 Online:2007-08-28 Published:2007-08-28
Contact: ZHOU Lihui

摘要/Abstract

摘要： Chemical modification (CM) and deposition-precipitation (DP) methods were used for the
dispersion of active Au nanoparticles on mesoporous silica materials in this work. XRD,
TEM, N2 adsorption isotherms and UV-Vis absorption spectra were used to characterize in
detail Au-SBA-15 materials prepared by the two methods. The analysis results showed that
high loading (1.7%, by mass) and uniform Au nanoparticles (approximately 3 nm) were
dispersed in the channels of mesoporous SBA-15 by the CM method. While for the DP method,
most of Au nanoparticles with the size of 10—15nm were aggregated outside of the channels
of SBA-15 and the actual loading of Au was only 0.38% (by mass).

关键词: SBA-15;Au-SBA-15;Au nanoparticles;deposition-precipitation;chemical modification

Abstract: Chemical modification (CM) and deposition-precipitation (DP) methods were used for the
dispersion of active Au nanoparticles on mesoporous silica materials in this work. XRD,
TEM, N2 adsorption isotherms and UV-Vis absorption spectra were used to characterize in
detail Au-SBA-15 materials prepared by the two methods. The analysis results showed that
high loading (1.7%, by mass) and uniform Au nanoparticles (approximately 3 nm) were
dispersed in the channels of mesoporous SBA-15 by the CM method. While for the DP method,
most of Au nanoparticles with the size of 10—15nm were aggregated outside of the channels
of SBA-15 and the actual loading of Au was only 0.38% (by mass).

Key words: SBA-15, Au-SBA-15, Au nanoparticles, deposition-precipitation, chemical modification

周丽绘, 胡军, 谢颂海, 刘洪来. 活性纳米金颗料在介孔分子筛SBA-15上的分散[J]. CIESC Journal.

ZHOU Lihui, HU Jun, XIE Songhai, LIU Honglai. Dispersion of active Au nanoparticles on mesoporous SBA-15 materials[J]. .

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活性纳米金颗料在介孔分子筛SBA-15上的分散

Dispersion of active Au nanoparticles on mesoporous SBA-15 materials

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