Synthesis and Properties of Mesoporous TiO2 Using Nano-cellulose Template Prepared by Alkali Method

被引:20
作者
Chen Xiaoyun [1 ]
Chen Xing [2 ]
Hong Shiwei [1 ]
Chen Xiao [1 ]
Huang Biao [1 ]
机构
[1] Fujian Agr & Forestry Univ, Coll Mat Engn, Fuzhou 350002, Fujian, Peoples R China
[2] Fujian Agr & Forestry Univ, Coll Mech & Elect Engn, Fuzhou 350002, Fujian, Peoples R China
基金
中国国家自然科学基金;
关键词
titania; nano-cellulose; mesoporous; photocatalysis; template; phenol; IONIC LIQUIDS; THIN-FILMS; PHOTOCATALYST; DEGRADATION; NITROGEN; PHENOL;
D O I
10.3724/SP.J.1088.2011.10755
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Mesoporous TiO2 was synthesized by a hydrolysis-precipitation method using biological renewable resources of nano-cellulose as template and using TiCl4 as precursor. The photocatalytic activity of TiO2 was investigated by the degradation of phenol under ultraviolet light irradiation. Transmission electron microscopy, X-ray diffraction, thermogravimetry-differential thermal analysis, and N-2 adsorption-desorption were used for catalyst characterization. The results showed that TiO2 synthesized with alkali nano-cellulose template exhibited high activity under UV irradiation. The material had average size of about 13.5 tun in diameter and exhibited mesoporous structure with specific area of 176 m(2)/g and average pore size of 6.17 nm. The addition of alkali nano-cellulose template can retard phase transformation. The higher photocatalytic activity was attributed to the small grain size, more pores, and higher specific surface area of the catalyst.
引用
收藏
页码:1762 / 1767
页数:6
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