[1]蔡弘华,李海洋,罗仲宽,等.TiO2溶胶对水中1,2-二氯乙烷脱氯的光崔化作用[J].深圳大学学报理工版,2006,23(1):64-69.
 CAI Hong-hua,LI Hai-yang,LUO Zhong-kuan,et al.Photo-catalytic degradation of 1, 2-dichloroethane in water with titanium dioxide sol[J].Journal of Shenzhen University Science and Engineering,2006,23(1):64-69.
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TiO2溶胶对水中1,2-二氯乙烷脱氯的光崔化作用()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第23卷
期数:
2006年1期
页码:
64-69
栏目:
化学与化工
出版日期:
2006-01-30

文章信息/Info

Title:
Photo-catalytic degradation of 1, 2-dichloroethane in water with titanium dioxide sol
文章编号:
1000-2618(2006)01-0064-06
作者:
蔡弘华 李海洋 罗仲宽 刘剑洪 洪伟良 任祥忠 温庆玲
深圳大学师范学院, 深圳518060
Author(s):
CAI Hong-hua LI Hai-yang LUO Zhong-kuan LIU Jian-hong HONG Wei-liang REN Xiang-zhong and WEN Qing-ling
Normal College Shenzhen University ,Shenzhen 518060, P. R. China
关键词:
TiO2 溶胶光催化1 2-二氯乙烷电导率脱氯水处理降解
Keywords:
TiO2 sol photo-catalytic 12-dichloroethane conductivity de-chlorination water treatment degradation
分类号:
X 524
文献标志码:
A
摘要:
TiOSO4 为前驱体, 制备出澄清、稳定的橙黄色透明TiO2 溶胶, 平均粒径26 nm. 利用该水性TiO2 溶胶作为光催化剂对水中微量1, 2-二氯乙烷进行紫外光催化研究, 实验所用紫外灯主波长365 nm,平均照射功率密度0.3 mW /cm2 , 降解过程中产生的氯离子和氢离子浓度的变化用电导率仪实施监测. 结果表明, 二氧化钛溶胶的浓度对光催化反应有一个最佳范围, 在本实验条件下, 二氯乙烷降解的最佳光催化剂浓度为5 ×10-6;在一定范围内, 当固定入射光强和光催化剂浓度时, 随二氯乙烷溶液浓度的提高,其降解效率也相应增大.
Abstract:
Titanium oxide sol was prepared using TiOSO4 as precursors. This prepared sol was yellow, transparent,and could be long-term stable. So l particle size was measured with laser diffraction particle size analyzer. Average size of sol particle sizes was 26 nm. Photo-catalytic degradation experiment of 1, 2-dichloroethane in water was conducted using TiO2 as photo-catalyst under ultraviolet light, and checked by conduct meter. Power of UV light was 60W with 365nm of main wavelength, and the irradiation energy density for solution surface was about 0.3mW /cm2.The results reveal that conductivity of solution increases when 1, 2-dichloroethane degrading under UV radiating, and the degradation efficiencies of 1, 2-dichloroethane in water were influenced by the initial concentrations of 1, 2-dichlo roethane, amounts of photo-catalyst, and illumination intensities. In the photo-catalytic process, chlorine ions and hydrogen ions were gene rated from the solution of 1, 2-dichloroethane finally. Increases of conductivity were directly decided on the final product, hydrogen chloride. There exits a best concentration of titanium oxide sol for the photo-oxidation of 1,2-dichloroethane. Suitable addition amount o f sol is benefit to photo-catalysis of 1, 2-dichloroethane in solution. In this experimental condition, the best concentration range of titanium oxide sol for photo-catalysis is 5 ×10-6 for 1, 2-dichloroethane.
更新日期/Last Update: 2015-09-25