| BiVO4/膨润土对活性蓝19的吸附动力学 |
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| 引用本文： | 李南南,魏岳挺,何瑾馨.BiVO4/膨润土对活性蓝19的吸附动力学[J].印染助剂,2012,29(3):14-17. |
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| 作者姓名： | 李南南 魏岳挺 何瑾馨 |
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| 作者单位： | 东华大学化学化工与生物工程学院,纺织面料技术教育部重点实验室,上海201620 |
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| 摘 要： | 制备了BiVO4/膨润土,并用XRD、FE-SEM进行了表征.研究了BiVO4/膨润土对活性蓝19的吸附动力学.结果表明:Bi-VO4/膨润土对活性蓝19的吸附在30 min基本达到平衡.在染料初始质量浓度为15~45 mg/L、温度为298~318 K时,BiVO4/膨润土对活性蓝19的吸附动力学数据符合准二级动力学方程,表观吸附活化能为28.75 kJ/mol,说明此吸附由化学吸附和物理吸附共同控制.
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| 关 键 词： | BiVO4/膨润土 活性蓝19 吸附 吸附动力学 |
Adsorption kinetics of BiVO4/bentonite for Reactive Blue 19 |
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| LI Nan-nan
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WEI Yue-ting
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HE Jin-xin.Adsorption kinetics of BiVO4/bentonite for Reactive Blue 19[J].Textile Auxiliaries,2012,29(3):14-17. |
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| Authors: | LI Nan-nan WEI Yue-ting HE Jin-xin |
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| Affiliation: | (College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,The Key Lab of Textile Science & Technology,Ministry of Education,Shanghai 201620,China) |
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| Abstract: | BiVO4 /bentonite was prepared and characterized by XRD,FE-SEM.The adsorption kinetics of BiVO4 /bentonite for Reactive Blue 19 was investigated.The results indicated that equilibrium between the dye and BiVO4 /bentonite in the solution was established within 30 min.The adsorption kinetics data fitted very well with the pseudo-second-order kinetic equation as the initial concentration was between 15～45 mg/L and the experimental temperature was 298～318 K.The apparent activation energy of the adorption was 28.75 kJ/mol,which meant that the adsorption process was controlled by chemical adsorption and physicial adsorption. |
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| Keywords: | BiVO4 /bentonite Reactive Blue 19 adsorption adsorption kinetics |
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