Structural Control of Mesoporous 1,4-Phenylene-silica Using the Mixture of CTAB/SDS

The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide （CTAB） and sodium dodecylsulfate （SDS）. When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenyle...

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Published inChinese journal of chemistry Vol. 29; no. 5; pp. 883 - 887
Main Author 庄伟 毕丽峰 张明 王思兵 李艺 李宝宗 杨永刚
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.05.2011
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Subjects
1,4‐phenylene‐silica
4-phenylene-silica
CTAB
mesoporous
Morphology
SDS
self-assembly
Silica
sol-gel processes
surfactants
二氧化硅
介孔
十二烷基硫酸钠
十六烷基三甲基溴化铵
混合使用
结构控制
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Summary:The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide （CTAB） and sodium dodecylsulfate （SDS）. When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenylene-silicas changed in a sequence of sphere, hexagonal short rod, worm-like, bent flake and flower-like structure; the pore architecture of them changed from a hexagonal arranged tubular structure to a lamellar one; and the organization of the smallest repeat units within the wall changed from a random structure to a crystalline structure. At the SDS/CTAB molar ratios of 0.3 and 0.5, 1,4-phenylene-silica nanofibers with lamellar mesopores outside and tubular pore channels inside were obtained. The lamellar mesopores should be formed by merging the rod-like micelles during the reaction process.
Bibliography:31-1547/O6
The morphology, pore architecture and crystallinity of the mesoporous 1,4-phenylene-silicas were controlled using the mixtures of cetyltrimethylammonium bromide （CTAB） and sodium dodecylsulfate （SDS）. When the SDS/CTAB molar ratio increased from 0 to 1.0, the morphology of the mesoporous 1,4-phenylene-silicas changed in a sequence of sphere, hexagonal short rod, worm-like, bent flake and flower-like structure; the pore architecture of them changed from a hexagonal arranged tubular structure to a lamellar one; and the organization of the smallest repeat units within the wall changed from a random structure to a crystalline structure. At the SDS/CTAB molar ratios of 0.3 and 0.5, 1,4-phenylene-silica nanofibers with lamellar mesopores outside and tubular pore channels inside were obtained. The lamellar mesopores should be formed by merging the rod-like micelles during the reaction process.
Zhuang Wei, Bi Lifeng, Zhang, Ming, Wang Sibing, Li Yi, Li Baozong, Yang Yonggang（ Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China）
mesoporous, 1,4-phenylene-silica, surfactants, sol-gel processes, self-assembly
istex:DBC919ECA989DC0A75C236ADAEA29BCDA42D57F1
the National Natural Science Foundation of China - No. 20871087
ArticleID:CJOC201190183
the Program of Innovative Research Team of Soochow University, Program for New Century Excellent Talents in University - No. NCET-08-0698
ark:/67375/WNG-B55XP2VC-4
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201190183