应用化学2011，Vol.28Issue(9)：1067-1072,6.DOI:10.3724/SP.J.1095.2011.00631
D301R树脂对水溶液中硝基苯的吸附性质
The Adsorptive Properties of the D301R Resin Towards Nitrobenzene in Aqueous Solution
摘要
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 constant k2 is 3. 74 × 10-2 g/(mg-min) at 300 K, which increases with the increase of temperature. The equilibrium adsorption capacity is 5. 02 mg/g at 300 K, which decreases with the increase of temperature. The adsorptive activation energy is 39. 02 μ/mol. The adsorption isotherm is consistent with the Langmuir isotherm and the calculated adsorption enthalpy is about - 22. 47 kj/mol. The hydrogen bonding was suggested to be responsible for nitrobenzene adsorption onto D301R resin.关键词
D301R树脂/硝基苯/吸附动力学/吸附等温线Key words
D301R resin/ nitrobenzene/ adsorption kinetics/ adsorption isotherm分类
化学化工引用本文复制引用
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):1067-1072,6.基金项目
国家自然科学基金(20963003)、海南省重点科技项目(080305 （20963003）
090803)、海南省自然科学基金(509009)资助项目 （509009）
