Qin Qingqing, Hu Yingmo, Wang Junya, Yang Yuanyuan, Lei Ting, Cui Zhenyu, Guo Sufang, Qin Shuhao
Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Material Sciences and Technology, China University of Geosciences Beijing 100083 China
Guizhou Material Industry Technology Research Institute Guiyang 550025 China
Nanoscale Adv. 2023 May 5;5(11):2873-2878. doi: 10.1039/d3na00087g. eCollection 2023 May 30.
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.
我们提出了一种制备水分散单层层状双氢氧化物（LDH）纳米片（m-LDH）的新方法。通过将苯乙烯-马来酸酐共聚物（SMA）插入LDH中，我们通过一个简单的老化步骤获得了m-LDH，该步骤产生了稳定的半透明胶体溶液。干燥后，所得粉末可重新分散在水中以恢复m-LDH单层结构。据我们所知，这是首次报道m-LDH单层结构在重新分散于水中后能从干燥粉末中立即恢复。我们的方法可能对在各种应用中制备和利用m-LDH纳米片具有重要意义。
