| 纳米TiO_2的制备、表征及光催化降解酸性品红 |
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| 引用本文： | 赵玉翠,石建稳,郑经堂. 纳米TiO_2的制备、表征及光催化降解酸性品红[J]. 应用化工, 2007, 36(10): 993-995,997 |
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| 作者姓名： | 赵玉翠 石建稳 郑经堂 |
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| 作者单位： | 1. 中国石油大学(华东)重质油国家重点实验室,山东,东营,257061
2. 中国科学院,城市环境研究所,福建,厦门,361003 |
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| 摘 要： | 以钛酸四正丁酯为原料,采用溶胶-凝胶法制备了纳米TiO2粒子,对其进行了TG-DTA,XRD,TEM和BET分析,并分别在紫外光和可见光下考察了其光催化降解酸性品红性能。结果表明,自制的纳米TiO2对酸性品红具有很好的光催化降解脱色能力,500℃的样品在紫外光下,20 min内即可将200 mg/L的酸性品红溶液完全降解脱色,在可见光下,210 min内酸性品红的脱色率达80%。
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| 关 键 词： | 二氧化钛 光催化 染料 脱色 |
| 文章编号： | 1671-3206（2007）10-0993-03 |
| 修稿时间： | 2007-08-10 |
Preparation, characterization of nanometer TiO2 and photocatalytic degradated acid fuchsine |
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| ZHAO Yu-cui,SHI Jian-wen,ZHENG Jing-tang. Preparation, characterization of nanometer TiO2 and photocatalytic degradated acid fuchsine[J]. Applied chemical industry, 2007, 36(10): 993-995,997 |
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| Authors: | ZHAO Yu-cui SHI Jian-wen ZHENG Jing-tang |
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| Affiliation: | 1. The State Key Laboratory of Heavy Oil, China University of Petroleum ,Dongying 257051, China; 2. Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 351003, China |
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| Abstract: | TiO2 nanoparticles were prepared by sol-gel method with tetra-n-butyl titanate as raw materials and characterized with TG-DTA,XRD,TEM and BET,and their photocatalytic activity were studied by photocatalytic oxidation of acid fuchsine in water.The results show that self-prepared nanometer TiO2 has excellent capacity of photocatalytic depigmentation acid fuchsine.The acid fuchsine solution with initial concentration 200 mg/L can be completely photocatalytic depigmentized by self-prepared TiO2 calcined at 500 ℃ under UV irradiation in 20 min.And the depigmentation ratio of the acid fuchsine solution with initial concentration 80 mg/L can reach to 80% under visible light irradiation in 210 min. |
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| Keywords: | titanium dioxide photocatalysis dye decolour |
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