Bacterial cellulose/TiO2 hybrid nanofibers prepared by the surface hydrolysis method with molecular precision

被引：140

作者：

Sun, Dongping ^{[1
]}

Yang, Jiazhi ^{[1
]}

Wang, Xin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Peoples R China

来源：

NANOSCALE | 2010年 / 2卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TIO2; PHOTOCATALYST; FABRICATION; COMPOSITES; OXIDATION; FIBERS; ARRAYS;

D O I：

10.1039/b9nr00158a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bacterial cellulose (BC) nanofibers were biosynthesized by Acetobacter xylinum NUST5.2, and displayed a remarkable capability for orienting TiO2 nanoparticle arrays. Large quantities of uniform BC nanofibers coated with TiO2 nanoparticles can be easily prepared by surface hydrolysis with molecular precision, resulting in the formation of uniform and well-defined hybrid nanofiber structures. The mechanism of arraying spherical TiO2 nanoparticles on BC nanofibers and forming well-defined, narrow mesopores are discussed in this paper. The BC/TiO2 hybrid nanofibers were used as photocatalyst for methyl orange degradation under UV irradiation, and they showed higher efficiency than that of the commercial photocatalyst P25.

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页码：287 / 292

页数：6

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