New Strategy to Synthesis of Hierarchical Mesoporous Zeolites

被引：157

作者：

Gu, Fang Na ^{[1
,2
]}

Wei, Feng ^{[1
]}

Yang, Jia Yuan ^{[1
]}

Lin, Na ^{[1
]}

Lin, Wei Gang ^{[1
]}

Wang, Ying ^{[2
]}

Zhu, Jian Hua ^{[1
]}

机构：

[1] Nanjing Univ, Coll Chem & Chem Engn, Key Lab Mesoscop Chem MOE, Nanjing 210093, Peoples R China

[2] Nanjing Univ, ERERC, Nanjing 210093, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 08期

关键词：

MICELLE-TEMPLATED SILICAS; CATALYTIC-PROPERTIES; CRYSTALLINE ZEOLITE; MOLECULAR-SIEVE; MFI ZEOLITE; PORE; MECHANISM; ALUMINUM; SBA-15; MCM-41;

D O I：

10.1021/cm903785r

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We report a new strategy to synthesize the hierarchical mesoporous zeolite through design of mesoscale cationic surfactant cetyltrimethylammonium bromide (CTAB) micelle with cosolvent tertbutyl alcohol (TBA) and the 1,3,5-trimethylbenzene (TMB) additive, by which the formation of hierarchical mesostructure arose from the condensing of zeolite fragments on the mesoscale surfactant micelles. The hierarchical mesoporous silica with zeolite Y or socialite fragment is synthesized for the first time, which exhibited both the mesostructure and the typical diffraction of zeolite. XRD, N-2 adsorption-desorption, Al-27 MAS NMR, FTIR, and NH3-TPD techniques were employed to characterize the resulting samples, and the adsorption of NPYR (N-nitrosopyrrolidine) and NNN (N-nitrosonornicotine) were performed to assess the adsorptive capability of the zeolitic mesoporous materials. The MS3-4t-5b sample synthesized by assembling zeolite gel exhibited the adsorptive capacity comparable to NaY zeolite for trapping NPYR in airflow but four times superior to NaY for adsorbing bulky nitrosamine NNN in solution because of its hierarchical mesostructure

引用

页码：2442 / 2450

页数：9

共 52 条

[1]

Mechanisms of pore size control in MSU-X mesoporous silica [J].