基于LDH的核壳结构纳米复合材料的研究进展

Research Progress of the Core-Shell Structure Nanocomposite Based on LDH

层状双金属氢氧化物(LDH)是一类具有层状结构的新型功能材料,近年来基于LDH的核壳结构纳米复合材料由于具有组成结构多样化、组分间呈现协同效应、性能容易调控等特点,其制备与应用研究引起了广泛关注。本文首先综述了最近几年基于LDH的核壳结构纳米复合材料的常用制备方法,主要包括共沉淀法、自组装法和原位生长法,并对这些方法的优缺点进行了分析;然后又讨论了基于LDH的核壳结构纳米复合材料的应用现状,着重阐述了该类材料在吸附、催化、超级电容器和生物医学等方面的应用情况;最后也对该领域存在的问题及其发展趋势进行了总结讨论。

Layered double hydroxide (LDH) is a novel functional material with layered structure. With all the excellent properties including diverse composition structures, synergistic effect between the components and highly controllable performance, the study of preparation and applications of the LDH-based core-shell structure nanocomposite has been widely considered for their attractive properties in recent years. At first, the common preparation methods of the LDH-based core-shell structure nanocomposite were summarized, mainly including co-precipitation, self-assembly and in situ growth methods. The advantages as well as disadvantages of these methods were also compared and analyzed. Secondly, the application status of the LDH-based core-shell nanocomposite was focused on their applications in adsorption, catalysis, supercapacitor and biomedicine. The problems and trends of this nanocomposite were concluded and discussed finally.