壳聚糖功能微球负载贵金属的研究进展

发布时间：2018-06-01 00:43

本文选题：复合材料 + 离子交换　；参考：《化工进展》2017年02期

【摘要】：贵金属凭借其空的d电子轨道、较小的能级间距和配位的多样性成为多领域研究热点,但目前价格昂贵、储量稀少、利用率低下,极大地限制了贵金属的广泛应用,因此近年来发展优异的功能载体成为贵金属应用领域的研究趋势,这不仅可以方便贵金属的回收循环利用,同时可避免体系内的痕量残留,减少环境污染。本文综述了一种廉价无毒、含有丰富羟基、氨基基团的壳聚糖绿色材料作为贵金属载体的研究近况,介绍了国内外在吸附、催化等领域应用壳聚糖材料的代表性学术成果,比较并分析了不同表面修饰手段对壳聚糖载体贵金属作用效果的影响,概括了目前壳聚糖功能载体在贵金属研究中存在的形貌研究相对局限、可控制备难以实现规模化等问题,同时预测了壳聚糖材料在生物医药领域良好的发展前景。
[Abstract]:The precious metal has become a hotspot in many fields because of its empty d electron orbital, small energy level spacing and diversity of coordination. However, the high price, scarce reserves and low utilization ratio have greatly limited the wide application of precious metals. Therefore, the development of excellent functional carriers in recent years has become a research trend in the application of precious metals, which can not only facilitate the recycling of precious metals, but also avoid trace residues in the system and reduce environmental pollution. In this paper, the recent progress in the research of a cheap, nontoxic, hydroxyl rich, amino group chitosan green material as noble metal carrier is reviewed, and the representative academic achievements in the application of chitosan materials in adsorption, catalysis and other fields at home and abroad are introduced. The effects of different surface modification methods on the effect of noble metal on chitosan carrier were compared and analyzed. At the same time, the prospect of chitosan in biomedical field was predicted.
【作者单位】：山东大学化学与化工学院;清华大学化工系化学工程联合国家重点实验室;
【分类号】：O636.1;TB34

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