| Solar Photocatalytic Degradation of Textile Dyes in TiO2 Suspended Solutions |
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| 作者姓名： | 叶玉莉 萧志学 刘联惠 洪永哲 |
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| 作者单位： | Ruth Yeh（Department of Chemical Engineering, Minghsin University of Science and Technology, Hsin-Chu, 304 Taiwan, China）
C.S.Shiau（Department of Chemical Engineering, Minghsin University of Science and Technology, Hsin-Chu, 304 Taiwan, China）
Robert Liu（Department of Chemical Engineering, Minghsin University of Science and Technology, Hsin-Chu, 304 Taiwan, China）
Y. T.Hung（Department of Civil Engineering, Cleveland State University, Cleveland Ohio 44115-2214, USA） |
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| 摘 要： |
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| 文章编号： | 1009-606X(2006)S2-0342-07 |
| 修稿时间： | 2006年10月17 |
Solar Photocatalytic Degradation of Textile Dyes in TiO2 Suspended Solutions |
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| Ruth Yeh,C.S.Shiau,Robert Liu,Y. T.Hung.Solar Photocatalytic Degradation of Textile Dyes in TiO2 Suspended Solutions[J].Chinese Journal of Process Engineering,2006,6(Z2):342-348. |
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| Authors: | Ruth Yeh CSShiau Robert Liu Y THung |
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| Abstract: | The degradation and decolourization of direct dye (Everdirect supra turguoise blue, FBL), acidic dye (Isolan orange S-RL) and vat dye (Indanthren red FBB) have been investigated by solar/TiO2 process. The effects of solution pH, dye concentration, dosage of TiO2 and nano-size of TiO2 have been studied. The increase in initial pH (3, 5 and 11) and dye concentration decrease the removal rate. The treatment for FBB and FBL dye solutions is more efficient than that of S-RL.Under optimum conditions, the color removal is found to be almost complete for FBB and FBL while that of S-RL also reaches 95%. Langmuir adsorption isotherm and modified Langmuir-Hinshelwood kinetic model (L-H model) have been fitted to the experimental data and found to correlate the adsorption patterns as well as the kinetics of the dyes studied. |
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| Keywords: | solar/TiO2 process direct dye (FBL) acidic dye (S-RL) vat dye (S-RL) Langmuir adsorption isotherm modified L-H model |
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