Synthesis of high-quality MCM-48 mesoporous silica using gemini surfactant dimethylene-1,2-bis(dodecyldimethylammonium bromide)

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	Synthesis of high-quality MCM-48 mesoporous silica using gemini surfactant dimethylene-1,2-bis(dodecyldimethylammonium bromide)
	Han, SH ; Xu, J ; Hou, WG ; Yu, XM ; Wang, YS
刊名	JOURNAL OF PHYSICAL CHEMISTRY B
	2004
卷号	108 期号:39 页码:15043-15048
ISSN号	1520-6106
通讯作者	shuhhan@sdu.edu.cn
中文摘要	Using the Gemini surfactant [C12H25N+(CH3)(2-)N+(CH3)(2)-N+(CH3)(2)-C12H25](.)2Br(-) (abbreviated as C12-2-12) with the short spacer group (s = 2) as structure-directing agent and sodium silicate as precursor, high-quality ordered cubic mesoporous silica (space group Ia3d) was prepared through the S+I- route (S denotes surfactant, I precursor). The samples were characterized by small-angle X-ray diffraction, transmission electron microscopy, and N-2 adsorption-desorption techniques. Results showed that the pore structure of the resulting mesoporous silica belonged to the cubic structure (space group Ia3d). The high-quality cubic mesoporous structure was formed at 1:0.33 (molar ratio of sodium silicate to C12-2-12), 2:1 (ethyl acetate to sodium silicate), and at 30 degreesC. The formation conditions of MCM-48 with C12-2-12 were milder than those with the corresponding monovalent surfactants, such as alkyltrimethylammonium bromide. N-2 adsorption-desorption curves revealed type IV isotherms and H1 hysteresis loops; Brunauer-Emmet-Teller (BET) surface areas increased with the decrease of the molar ratio of sodium silicate to C12-2-12 and of ethyl acetate to sodium silicate as well as of the hydrothermal temperatures.
学科主题	Chemistry, Physical
收录类别	SCI
原文出处	AMER CHEMICAL SOC
WOS记录号	WOS:000224070200039
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/5450]
专题	南海海洋研究所_广东省应用海洋生物学重点实验室
推荐引用方式 GB/T 7714	Han, SH,Xu, J,Hou, WG,et al. Synthesis of high-quality MCM-48 mesoporous silica using gemini surfactant dimethylene-1,2-bis(dodecyldimethylammonium bromide)[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2004,108(39):15043-15048.
APA	Han, SH,Xu, J,Hou, WG,Yu, XM,&Wang, YS.(2004).Synthesis of high-quality MCM-48 mesoporous silica using gemini surfactant dimethylene-1,2-bis(dodecyldimethylammonium bromide).JOURNAL OF PHYSICAL CHEMISTRY B,108(39),15043-15048.
MLA	Han, SH,et al."Synthesis of high-quality MCM-48 mesoporous silica using gemini surfactant dimethylene-1,2-bis(dodecyldimethylammonium bromide)".JOURNAL OF PHYSICAL CHEMISTRY B 108.39(2004):15043-15048.