| D301R树脂对水溶液中硝基苯的吸附性质 |
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| 引用本文： | 华英杰,王崇太,李天略,何猛雄,徐坤琴.D301R树脂对水溶液中硝基苯的吸附性质[J].应用化学,2011,28(9):1067-1072. |
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| 作者姓名： | 华英杰 王崇太 李天略 何猛雄 徐坤琴 |
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| 作者单位： | (海南师范大学化学与化工学院 海口 571158) |
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| 基金项目： | 国家自然科学基金(20963003); 海南省重点科技项目(080305;090803); 海南省自然科学基金(509009)资助项目 |
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| 摘 要： | 研究了D301R弱碱性阴离子交换树脂对水中硝基苯的吸附作用，测定了不同温度下吸附的动力学曲线和吸附等温线，提出了吸附动力学模型，计算了平衡吸附量、吸附活化能和吸附焓等。 实验结果表明，吸附动力学符合表面过程控制的准二级反应模型，其速率常数k2在300 K时为3.74×10-2 g/(mg·min)，并随温度的升高而升高；平衡吸附量在300 K时为5.02 mg/g，且随温度的升高而降低；吸附活化能为39.02 kJ/mol；吸附等温线符合Langmuir吸附模型，吸附焓为-22.47 kJ/mol，吸附作用力主要是氢键。
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| 关 键 词： | D301R树脂 硝基苯 吸附动力学 吸附等温线 |
| 收稿时间： | 2010-10-22 |
The Adsorptive Properties of the D301R Resin Towards Nitrobenzene in Aqueous Solution |
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| HUA Yingjie,WANG Chongtai,LI Tianlue,HE Mengxiong,XU Kunqin.The Adsorptive Properties of the D301R Resin Towards Nitrobenzene in Aqueous Solution[J].Chinese Journal of Applied Chemistry,2011,28(9):1067-1072. |
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| Authors: | HUA Yingjie WANG Chongtai LI Tianlue HE Mengxiong XU Kunqin |
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| Institution: | (School of Chemistry and Chemical Engineering,Hainan Normal University,Haikou 571158) |
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| Abstract: | The adsorptive properties of the D301R resin towards nitrobenzene in aqueous solution were investigated in details.The adsorption kinetic curves and adsorption isotherm curves were determined at different temperatures.An adsorption kinetic model was proposed.The equilibrium adsorption capacity,the adsorptive activation energy and the adsorption enthalpy were estimated.The experimental results showed that the adsorption kinetics follows a pseudo-second-order equation controlled by a surface process.The rate ... |
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| Keywords: | D301R resin nitrobenzene adsorption kinetics adsorption isotherm |
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