Facile synthesis and novel application of zirconia catalyzed and templated by lysozyme

被引：24

作者：

Jiang, Yanjun ^{[1
]}

Yang, Dong ^{[1
]}

Zhang, Lei ^{[1
]}

Jiang, Yan ^{[1
]}

Zhang, Yufei ^{[1
]}

Li, Jian ^{[1
]}

Jiang, Zhongyi ^{[1
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Minst Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2008年 / 47卷 / 06期

关键词：

D O I：

10.1021/ie071018m

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this study, lysozyme, which is a cationic antibacterial enzyme, was, for the first time, demonstrated to catalyze the hydrolysis/condensation of the precursor potassium hexafluorozirconate (K2ZrF6) and template the formation of zirconia particles at room temperature. The resulting zirconia particles were characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectrometry (EDX), thermogravimetric analysis (TGA), Fourier transform infrared (FT-IR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The prepared zirconia particles had an amorphous structure and exhibited a different morphology and surface roughness from those prepared via the conventional sol-gel approach. The catalytic and templating function of the lysozyme that was involved in the synthesis of zirconia particles was discussed, and a hydrolysis mechanism of K2ZrF6 was tentatively proposed. In addition, the zirconia was utilized as the carrier for the immobilization of yeast alcohol. dehydrogenase (YADH), which displayed enhanced thermal and pH stability, compared to free YADH.

引用

收藏

页码：1876 / 1882

页数：7

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