Immobilization of iron tetrasulfophthalocyanine on functionalized MCM-48 and MCM-41 mesoporous silicas: Catalysts for oxidation of styrene

被引：41

作者：

Pirouzmand, Mahtab ^{[1
]}

Amini, Mostafa M. ^{[1
]}

Safari, Nasser ^{[1
]}

机构：

[1] Shahid Beheshti Univ, Dept Chem, Tehran 198396113, Iran

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2008年 / 319卷 / 01期

基金：

美国国家科学基金会;

关键词：

MCM-48; MCM-41; iron tetrasulfophthalocyanine; styrene;

D O I：

10.1016/j.jcis.2007.11.024

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Iron tetrasulfophthalocyanine (FePcS) has been anchored on the surface of functionalized MCM-48 and MCM-41 silicas by means of chemical bonding to ammosilane groups. The prepared materials, FePcS/NH2-MCM-48 and FePcS/NH2-MCM-41, were characterized by diffuse reflectance UV-vis and infrared (IR) spectroscopies, low-angle X-ray diffraction (XRD), and surface area analysis (BET). The tendencies of FePcS absorption on functionalized MCM-48 and MCM-41 were measured by UV-vis spectroscopy. The functionalized MCM-48 showed a larger amine to silica ratio than the functionalized MCM-41. Low-angle X-ray diffraction analysis showed that, by anchoring iron tetrasulfophthalocyanine into functionalized MCM-48 and MCM-41, the intensity of main reflection decreased. The catalytic activities of the supported iron tetrasulfophthalocyanine were examined by the oxidation of styrene in the presence of tert-butyl hydroperoxide. The FePcS/NH2-MCM-48 showed higher activity and durability in the liquid-phase oxidation of styrene under mild condition compared with the FePcS/NH2-MCM-41 and unsupported catalyst. (C) 2007 Published by Elsevier Inc.

引用

页码：199 / 205

页数：7

共 37 条

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