埃洛石纳米管的应用研究现状

埃洛石纳米管是一种新型的纳米材料,价廉易得且具有优异的性能,目前对它的研究是国际材料领域的前沿和热点,与碳纳米管相比它具有独特的结构特点和明显的资源优势。本篇综述回顾了埃洛石纳米管的应用研究进展,扼要介绍了埃洛石纳米管的化学组成及晶体结构。埃洛石纳米管的功能与其结构特点息息相关,文章以它对水、甲醇、乙醇等氢键流体的输运性能、对燃料气体的储存容纳、对药物大分子微胶囊包裹以及作为治理环境吸附剂等为例,浅谈它在物质吸附、储存、输运方面的应用;以它作为重油催化裂化的催化剂和酶及金属氧化物的催化剂载体为例,浅谈在催化方面的应用。最后,对高岭土资源的有效开发利用以及埃洛石纳米管应用研究领域的未来方向提出了一些设想。

Application of Halloysite Nanotubes

Halloysite nano-particles have recently become the subject of research attention as a new type of material.Halloysite nanotubes(HNTs) are readily obtainable and are much cheaper than other nano-particles such as carbon nanotubes(CNTs).More importantly,the unique crystal structure of HNTs not only resembles that of CNTs in terms of aspect ratio,but also has a highly ordered structure with aluminol groups bound in the inner surface and silanol groups on the external surface.Consequently HNTs not only have potential as additive for enhancing the mechanical performance of polymers but also make them attractive candidates for a variety of potential applications,including molecular adsorption,molecular encapsulation,storage and transport,catalyst or catalyst support in chemical reactions.This review summarizes the extensive but scattered literature on halloysite nanotubes’ application,from its crystal structure,chemical and characteristic of morphological,to its adsorption,transport and catalysis reactivity,involving the various valuable prospects.Finally,the future trends and prospects in the development of application research of HNTs are highlighted.