Organic/inorganic hybrid mesoporous silica membrane rapidly synthesized by a microwave-assisted method and its application in enzyme adsorption and electrocatalysis

文献情報

出版日 2013-05-07

DOI 10.1039/C3TB20169D

インパクトファクター 6.331

著者

Shujuan Bian, Kui Gao, Huijie Shen, Xuheng Jiang, Yafeng Long, Yong Chen

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要旨

An organic/inorganic hybrid mesoporous silica membrane (HMSM) composed of mesoporous silica rods in the channels of a polycarbonate (PC) membrane was rapidly synthesized by employing the microwave-assisted method combined with solvent extraction. As-synthesized HMSMs were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), N2 adsorption–desorption, X-ray diffraction (XRD) and thermogravimetry (TG). The results indicated that silica rods with 200 nm diameter and 9 μm length grew in the confined spaces of the PC membrane. The average diameter of mesopores with partially ordered hexagonal mesostructure was about 6.0 nm. In addition, it was found that an enzyme with suitable size, such as horseradish peroxidase (HRP), could be immobilized inside the mesopores of HMSM through physical adsorption. Moreover, an electrode modified by HMSM with adsorbed HRP exhibits excellent direct electrochemical behavior of HRP and electrocatalytic effect toward H2O2, and can be further potentially applied in biosensors.

掲載誌

Journal of Materials Chemistry B

CiteScore: 12

自己引用率: 4.9%

年間論文数: 831

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