Recent advances in thin-film material based on layered double hydroxides via a layer-by-layer self-assembly method

Due to its structural anisotropy,novel physical and chemical properties,and multifunctionality,layered double hydroxides(LDHs) has been widely used in the field of materials science.Focusing on the study in recent years on thin-film materials based on LDHs,the paper is aimed to summarize the basic forces of the thin-film material produced by layer-by-layer self-assembly method(such as electrostatic adsorption,hydrogen bonding,etc.),and to expound LDHs assembled with inorganic molecules(montmorillonite,manganese dioxide,graphene,etc.),organic molecules(such as poly(vinyl alcohol),fluorescent dyes,polystyrene sulfonate,etc.) and so on.Applications of thin film on light,electricity,catalysis,biology-inorganic materials are also discussed in detail.With the basic research on preparation,chemical composition and the main forces for assembling in depth,as well as the functionality and practical application of the LBL technology being mature,the thin-film materials based on LDHs via LBL method have a profound impact in many fields including materials,chemical,biological,and other high-tech areas.