【摘要】 对自制强酸性离子交换纤维吸附偏二甲肼的特性进行了研究,在温度为287~318 K和40~190 mg.L-1的浓度范围内,离子交换纤维对偏二甲肼的吸附符合Langmuir和Freundlich等温吸附方程。不同温度下等温吸附曲线的测定和等量吸附焓的计算表明:离子交换纤维对偏二甲肼的吸附是吸热过程。对偏二甲肼在离子交换纤维上的吸附焓、吉布斯自由能、吸附熵的计算表明,该离子交换纤维对偏二甲肼的吸附没有化学键生成,并对吸附行为作了合理的解释。更多还原

【Abstract】 The adsorption performance of self-made strong acidicion-exchange fiber（1EF）for unsymmetrical dimethyl hydrazine（UDMH） was investigated.The adsorption of UDMH on IEF within the temperature range of 287～（318 K） and the concentration range of 40～190 mg·L^-1 accorded with the Langmuir-type and Freundlich-type isotherm equations.Equilibrium adsorption isotherms at different temperature and isosteric enthalpy of theadsorption of UDMH indicated that the process of adsorption of UDMH on IEF was an endothermic process.Estimations of the isosteric enthalpy of adsorption,free energy,and entropy of adsorption indicated that there was no chemical bond come into being,and the adsorption behavior was reasonably interpreted.更多还原