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Mesoporous silicalite-1 nanospheres and their properties of adsorption and hydrophobicity
Hu, Qin; Dou, Bao Juan; Tian, Hua; Li, Jin Jun; Li, Peng; Hao, Zheng Ping
2010-04-01
Source PublicationMICROPOROUS AND MESOPOROUS MATERIALS
Volume129Issue:3Pages:30-36
AbstractThe mesoporous silicalite-1 nanospheres (MSNs) had been successfully synthesized by using silicalite-1 seeds as silica source, cetyltrimethylammonium bromide (CTAB) as the surfactant and diethyl ether as the cosolvent via a novel and facile approach, which had a structure analogous to HMS materials, but contained sillicalite-1 zeolite as the mesoporous wall. A variety of experimental techniques of transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and N(2) adsorption/desorption isotherms had been used to characterize the framework structure, porosity and morphology of this novel mesoporous silicalite-1 nanospheres. The obtained nanospheres had the diameters of 300-500 nm and possessed worm-like porous walls. The MSNs materials exhibited high surface areas and large total pore volumes, and the order of the mesoporous structures increased with the amount of the added cosolvent. Due to the complementary types of porous structures, MSNs materials were used to conduct the adsorption experiments under static and dynamic conditions. The equilibrium adsorptive experiments of toluene for MSNs samples presented a high adsorption capacity compared to the results reported by the other literatures. And the hydrophobicity index (HI) estimated by the dynamic adsorption process under wet conditions indicated that the MSNs materials possessed high dynamic adsorptive capacities and super-hydrophobic properties. (C) 2009 Elsevier Inc. All rights reserved.
Department环境纳米材料实验室
KeywordMesoporous Silicalite-1 Nanospheres Hydrophobicity Adsorption Vocs
Citation statistics
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/21189
Collection环境纳米技术与健康效应重点实验室
Recommended Citation
GB/T 7714
Hu, Qin,Dou, Bao Juan,Tian, Hua,et al. Mesoporous silicalite-1 nanospheres and their properties of adsorption and hydrophobicity[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2010,129(3):30-36.
APA Hu, Qin,Dou, Bao Juan,Tian, Hua,Li, Jin Jun,Li, Peng,&Hao, Zheng Ping.(2010).Mesoporous silicalite-1 nanospheres and their properties of adsorption and hydrophobicity.MICROPOROUS AND MESOPOROUS MATERIALS,129(3),30-36.
MLA Hu, Qin,et al."Mesoporous silicalite-1 nanospheres and their properties of adsorption and hydrophobicity".MICROPOROUS AND MESOPOROUS MATERIALS 129.3(2010):30-36.
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