Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy.
Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy.
Adv Colloid Interface Sci. 2020 Nov;285:102284. doi: 10.1016/j.cis.2020.102284. Epub 2020 Oct 11.
Layered double hydroxides (LDHs) have received great attention for years in numerous fields. Controlled and flexible layer composition, as well as the vast assortment of possible anionic guests, and easy adaptability for multipurpose applications, have been some of the many reasons behind their extraordinary success. However, versatility does not only involve the composition or the dimensions of the crystals but also their morphology. Aside from conventional hexagonal, flat structures, three-dimensional assemblies have been reported with architectures closely resembling those of flowers. The possibility of interconnecting the LDH nanosheets in rosette-like geometries has arisen the interest in finding new ways to control, modulate, and guide the particle growth obtaining hierarchical structures to be adapted to specific targets. This review is focused on describing the different strategies implemented to build flower-like assemblies, and on investigating their applications, looking for specific advantages of the use of a three-dimensional architecture over a bi-dimensional one.
层状双氢氧化物（LDHs）多年来在众多领域受到了广泛关注。可控且灵活的层组成，以及大量可能的阴离子客体，以及易于适应多种用途的应用，是它们取得非凡成功的众多原因之一。然而，多功能性不仅涉及晶体的组成或尺寸，还涉及晶体的形态。除了常规的六方、扁平结构外，还报道了具有类似于花朵的结构的三维组装体。LDH 纳米片以玫瑰花状的几何形状相互连接的可能性引起了人们的兴趣，人们希望找到新的方法来控制、调节和引导颗粒生长，获得适应特定目标的分级结构。本综述重点介绍了构建花状组装体所采用的不同策略，并研究了它们的应用，寻找使用三维结构相对于二维结构的具体优势。
