| 碱法纳米纤维素模板剂合成介孔TiO2及其性能 |
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| 引用本文： | 陈孝云,陈星,洪时伟,陈筱,黄彪.碱法纳米纤维素模板剂合成介孔TiO2及其性能[J].催化学报,2011,32(11):1762-1767. |
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| 作者姓名： | 陈孝云 陈星 洪时伟 陈筱 黄彪 |
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| 作者单位： | 1. 福建农林大学材料工程学院,福建福州,350002
2. 福建农林大学机电工程学院,福建福州,350002 |
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| 基金项目： | 国家自然科学基金(31000269和30972312); 福建省高等学校杰出青年科研人才培育计划(JA11072); 福建省教育厅基金(JA00121)~~ |
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| 摘 要： | 以生物可再生资源碱法纳米纤维素为模板剂,TiCl4为钛源,采用液相水解-沉淀法合成了具有介孔结构的TiO2光催化剂,采用透射电镜、X射线衍射、热重差热、低温N2物理吸附-脱附等技术对催化剂进行了表征,并以苯酚为模型物,考察了介孔TiO2的光催化活性.结果表明,所得TiO2催化剂具有良好的孔隙结构,平均孔径6.17nm、比表面积176.3m2/g、平均晶粒尺寸13.5nm.碱法纳米纤维素的加入在一定程度上提高了锐钛矿相向金红石相转变的温度.该TiO2晶粒小、孔隙较多、比表面积大、吸附性能强,因此表现出较高的光催化活性.
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| 关 键 词： | 二氧化钛 纳米纤维素 介孔 光催化 模板 苯酚 |
Synthesis and Properties of Mesoporous TiO_2 Using Nano-cellulose Template Prepared by Alkali Method |
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| CHEN Xiaoyun,CHEN Xing,HONG Shiwei,CHEN Xiao,HUANG Biao.Synthesis and Properties of Mesoporous TiO_2 Using Nano-cellulose Template Prepared by Alkali Method[J].Chinese Journal of Catalysis,2011,32(11):1762-1767. |
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| Authors: | CHEN Xiaoyun CHEN Xing HONG Shiwei CHEN Xiao HUANG Biao |
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| Institution: | CHEN Xiaoyun1,*,CHEN Xing2,HONG Shiwei1,CHEN Xiao1,HUANG Biao1 1College of Material Engineering,Fujian Agriculture and Forestry University,Fuzhou 350002,Fujian,China 2College of Mechanical and Electrical Engineering,China |
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| Abstract: | 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 N2 adsorption-desorption were used for catalyst characterization. The results showed that TiO2 synthesized with alkali nan... |
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| Keywords: | titania nano-cellulose mesoporous photocatalysis template phenol |
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