磁性纤维素离聚物/层状双氢氧化物：一种具有增强的双氯芬酸吸附性能的高效阴离子交换平台。
Magnetic cellulose ionomer/layered double hydroxide: An efficient anion exchange platform with enhanced diclofenac adsorption property.
机构信息
University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran.
Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
出版信息
Carbohydr Polym. 2017 Feb 10;157:438-446. doi: 10.1016/j.carbpol.2016.10.017. Epub 2016 Oct 7.
Polymeric ionomers with anion exchange capability are considered to be classes of environmentally friendly compounds as combination of them with anionic layered hydroxides constitute emerging advance materials. Biosorption by polymeric ionomer - layered double hydroxide (LDH) hybrid material exhibits an attractive green, low cost and low toxic - clean way. As a result, a novel anion exchange platform has been developed by the reaction of CaAl - LDH with Fe, cellulose solution, epichlorohydrin and pyridine. Magnetite cellulose - LDH (MCL) and the ionomer were used for efficient biosorption of diclofenac sodium (DF). Results showed that ionomer has more efficiency for DF adsorption relative to MCL. Magnetite ionomer showed fast equilibrium time (2min) with maximum uptake of 268mgg. Isotherm and Kinetic models were also studied. Regeneration of the sorbent was performed with a mixture of methanol -NaOH (2.0molL) solution.
具有阴离子交换能力的聚合物离聚物被认为是一类环保化合物，因为它们与阴离子层状氢氧化物的结合构成了新兴的先进材料。聚合物离聚物-层状双氢氧化物（LDH）杂化材料的生物吸附表现出一种有吸引力的绿色、低成本和低毒性-清洁方式。因此，通过 CaAl-LDH 与 Fe、纤维素溶液、环氧氯丙烷和吡啶的反应，开发了一种新型阴离子交换平台。利用磁铁矿纤维素-LDH（MCL）和离聚物对双氯芬酸钠（DF）进行了有效的吸附。结果表明，离聚物对 DF 的吸附效率高于 MCL。磁铁矿离聚物的平衡时间较快（2min），最大吸附量为 268mgg。还研究了等温线和动力学模型。用甲醇-氢氧化钠（2.0mol/L）混合溶液对吸附剂进行了再生。
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