Li Ai-min, Zhang Quan-xing, Chen Jin-long, Fei Zheng-hao, Long Chao
State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210093, China.
J Environ Sci (China). 2002 Oct;14(4):457-63.
Adsorption equilibrium isotherms of phenolic compounds, phenol, p-cresol, p-chlorophenol and p-nitrophenol, from aqueous solutions by Amberlite XAD-4 polymeric adsorbent and its acetylized derivative MX-4 within temperature range of 283-323K were obtained and fitted to the Freundlich isotherms. The capacities of equilibrium adsorption for all four phenolic compounds from their aqueous solutions increased around 20% on the acetylized resin, which may be contributed to the specific surface area and the partial polarity on the network. Estimations of the isosteric enthalpy, free energy, and entropy for the adsorption process were reported.
在283 - 323K温度范围内，获得了酚类化合物（苯酚、对甲酚、对氯苯酚和对硝基苯酚）在水溶液中被Amberlite XAD - 4聚合物吸附剂及其乙酰化衍生物MX - 4吸附的平衡等温线，并将其拟合到Freundlich等温线上。在乙酰化树脂上，所有四种酚类化合物从其水溶液中的平衡吸附容量增加了约20%，这可能归因于比表面积和网络上的部分极性。报道了吸附过程的等量吸附焓、自由能和熵的估算值。
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