含钒介孔空心球的合成

doi:10.3724/SP.J.1077.2012.11503

无机材料学报 ›› 2012, Vol. 27 ›› Issue (7): 699-705.DOI: 10.3724/SP.J.1077.2012.11503

含钒介孔空心球的合成

时晓波, 陈玉, 孔岩, 吴丞, 王军

(南京工业大学化学化工学院, 材料化学工程国家重点实验室, 南京 210009)

收稿日期:2011-08-12 修回日期:2011-11-17 出版日期:2012-07-20 网络出版日期:2012-06-06
作者简介:时晓波(1985-), 男, 硕士研究生.
基金资助:
国家自然科学基金(20876077); 江苏省自然科学基金支撑计划(BE2008142); 江苏省高校自然科学基金重大项目(10KJA530015)

Synthesis of Vanadium-mesoporous Hollow Spheres

SHI Xiao-Bo, CHEN Yu, KONG Yan, WU Cheng, WANG Jun

(State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China)

Received:2011-08-12 Revised:2011-11-17 Published:2012-07-20 Online:2012-06-06
About author:SHI Xiao-Bo
Supported by:
National Natural Science Foundation of China (20876077); Natural Science Foundation of Jiangsu Province R&D Program (BE2008142); University Natural Science Foundation of Jiangsu Province (10KJA530015)

摘要/Abstract

摘要： 以十六烷基三甲基溴化铵、十二烷基硫酸钠和P123三种表面活性剂为共模板剂合成了含钒介孔空心球, 研究了钒含量及反应条件对空心球形成的影响. 结果表明: 当n(V)/n(Si)低于0.05时不能形成空心球, 而n(V)/n(Si)过大时, 大部分钒在材料中以氧化物形式出现, 合适的n(V)/n(Si)为0.1. 最佳反应条件为pH值5.0, 45℃反应2 h. 产物结构规整, 且对苯乙烯过氧化氢选择氧化反应有着良好的催化性能.

关键词: 钒, 介孔材料, 空心球

Abstract: Vanadium-containing mesoporous silica with hollow spherical morphology was successfully synthesized by using CTAB, SDS and P123 as co-template. The influences of vanadium content and reaction conditions on the formation of the materials were also studied. Results indicated that the hollow spheres could not be shaped as molar ratio of V to Si was lower than 0.05 while excess vanadium content led large amount of vanadium oxides existed in the materials. The adequate molar ratio of V to Si was 0.1. The optimal synthesis conditions were reacted at 45℃ for 2 h under pH value of 5. The products with regular structure and morphology exhibited high catalytic activity on the selective oxidation of styrene by hydrogen peroxide.

Key words: vanadium, mesoprous materials, hollow spheres

中图分类号:

O643

时晓波, 陈玉, 孔岩, 吴丞, 王军. 含钒介孔空心球的合成[J]. 无机材料学报, 2012, 27(7): 699-705.

SHI Xiao-Bo, CHEN Yu, KONG Yan, WU Cheng, WANG Jun . Synthesis of Vanadium-mesoporous Hollow Spheres[J]. Journal of Inorganic Materials, 2012, 27(7): 699-705.

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含钒介孔空心球的合成

Synthesis of Vanadium-mesoporous Hollow Spheres

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