高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (5): 892.

• 论文 • 上一篇    下一篇

纳米TiO2/碳化树脂复合催化剂的合成及其光催化性能研究

苏碧桃1,2, 常玥1, 张力2, 陈慧2, 苏致兴1   

  1. 1. 兰州大学化学化工学院, 兰州 730000;
    2. 西北师范大学化学化工学院, 兰州 730070
  • 收稿日期:2001-10-18 出版日期:2003-05-24 发布日期:2003-05-24
  • 通讯作者: 苏致兴(1936年出生),男,教授,博士生导师,从事高分子化学及功能高分子方面的研究.E-mail:suzx@lzu.edu.cn E-mail:suzx@lzu.edu.cn
  • 基金资助:

    甘肃省科学基金(批准号:001-18);西北师范大学中青年基金(批准号:2000-09,2001-06及2001-08)

Preparation and Photocatalytic Properties of TiO2/Carbonized Resin Complex Nanocatalysts

SU Bi-Tao1,2, CHANG Yue1, ZHANG Li2, CHEN Hui2, SU Zhi-Xing1   

  1. 1. College of Chemical and Engineering, Lanzhou University, Lanzhou 730000;
    2. College of Chemical and Engineering, Northwest Normal University, Lanzhou 730070, China
  • Received:2001-10-18 Online:2003-05-24 Published:2003-05-24

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摘要： 利用一种简单、快速的方法合成了纳米TiO2/碳化树脂(B)复合催化剂,对其组成、结构、尺寸及其光催化性能进行了表征.结果表明,该复合材料为由碳、氢、氧和钛等4种元素组成的纳米材料,尺寸约30nm,其中Ti和O的堆积结构为锐钛矿型;在该复合材料中,B为具有活性基团和不同长度碳-碳共轭链的大分子,且与TiO2之间存在着某种化学作用,复合材料所具有的特殊电子结构不仅使其能吸收紫外-可见区的全程光波,而且对光生电荷具有很高的分离能力,从而表现出较高的光催化活性.

关键词: TiO2/碳化树脂, 纳米催化剂, 光催化脱色, 吖啶橙

Abstract: A TiO2/carbonized resin (B) complex nanocatalyst has been synthesized by using a simple method by molecule design and characterized with regard to their components, structure, size, and photo-catalytic properties. The results show that the average size of TiO2/Bcomplex nanoparticles composed of C, H, Oand Ti elements is about 30 nm, The stacking structure of Ti and Oin the complex belongs to TiO2anatase. Bwith different lengths of conjugated chains, and TiO2are chemically bound and their absorption is in an whole UV-Vis region. The TiO2/B complex nanomaterial is strong polar, resulting in efficient separation of photogenerated charges related to efficiency of light conversion and photocatalytic activities closely. The material is ideal and promising for photoelectric conversion and photocatalysis.

Key words: TiO2/carbonized resin, Nanophotocatalyst, Photocatalytic decolorization, Acridine orange

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