Preparation of water-dispersed monolayer LDH nanosheets by SMA intercalation to hinder the restacking upon redispersion in water
Qingqing Qin, Yingmo Hu, Junya Wang, Yuanyuan Yang, Ting Lei, Zhenyu Cui, Sufang Guo, Shuhao Qin
Abstract
We present a novel method for preparing water-dispersed monolayer layered double hydroxide (LDH) nanosheets (m-LDH). By intercalating styrene-maleic anhydride copolymer (SMA) into LDH, we obtained m-LDH through a simple aging step that produced stable, translucent colloidal solutions. After drying, the resulting powder can be redispersed in water to recover the m-LDH monolayer structure. To our knowledge, this is the first report of immediate recovery of the m-LDH monolayer structure from dried powder after redispersion in water. Our method may have significant implications for preparing and utilizing m-LDH nanosheets in various applications.
Topics & Concepts
MonolayerIntercalation (chemistry)Layered double hydroxidesHydroxideChemical engineeringChemistryMaterials scienceNanotechnologyInorganic chemistryEngineeringLayered Double Hydroxides Synthesis and ApplicationsInorganic Chemistry and MaterialsMicrowave Dielectric Ceramics Synthesis