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SDBS改性沸石吸附亚甲基蓝的性能研究 被引量:6

THE MECHANISM OF METHYLENE BLUE ADSORBED BY SDBS MODIFIED ZEOLITE
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摘要 研究了十二烷基苯磺酸钠(SDBS)改性沸石对染料亚甲基蓝的吸附性能与机理,探讨了温度、亚甲基蓝初始浓度以及溶液中离子强度等因素对吸附的影响。结果表明,SDBS改性沸石吸附亚甲基蓝的平衡时间为25min左右。改性沸石吸附亚甲基蓝的吸附等温线与Freundlich型(R2=0.9334)和Langmuir型(R2=0.9078)均拟合较好,其吸附动力学符合伪二级动力学方程。 The performance and mechanism about adsorption of methylene blue with SDBS modified zeolite were studied, and the factors which have influence on the adsorption processing ,such as temperature, the initial concentration of methylene blue,the ionic strength were discussed.The experimental results indicated that, the equilibrium time about 25 min.The adsorption isotherm of methylene blue adsorbed by modified zeolite fits well to Freundlieh (R^2=0.9334)and Langmuir(R^2=0.9078), and the adsorption kinetic conforms to the pseudo-second-order model.
出处 《水处理技术》 CAS CSCD 北大核心 2009年第12期58-60,63,共4页 Technology of Water Treatment
基金 福建省青年人才基金资助项目(2006F3040) 福建师范大学闽江学者人才引进基金资助项目
关键词 沸石 SDBS 吸附 亚甲基蓝 zeolite sodium dodecyl benzene sulfonate adsorption methylene blue
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