Synthesis of montmorillonite-chitosan hollow and hierarchical mesoporous spheres with single-template layer-by-layer assembly
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第10期
论文作者：Peng Chen Yunliang Zhao Tianxing Chen Tingting Zhang Shaoxian Song
文章页码：2325 - 2330
摘 要：In order to develop a facile and precisely controlled approach to synthesize hierarchical mesoporous materials with tailored property, in this work, a novel study was carried out to fabricate montmorillonitechitosan hollow and hierarchical mesoporous spheres（MMTNS@CS-HMPHS） based on single-template layer-by-layer（Lb L） assembly. Scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, specific surface area analysis and X-ray photoelectron spectroscopy（XPS） analyses were carried out to characterize the morphology and surface properties of MMTNS@CS-HMPHS. Benefitting from the unique lamellar structure of MMTNS, mesoporous channels are formed on the shell of MMTNS@CS hollow spheres, resulting in high surface area. Moreover, the surface functionalization and pore size of MMTNS@CS-HMPHS can be easily tuned, due to the tailored property through Lb L assembly method.Besides the unique microstructure, MMTNS@CS-HMPHS also possesses the active sites generated from both MMT and chitosan, which greatly promotes its performance in fields of adsorption, drug delivery and catalyst supports, etc.
Peng Chen1，Yunliang Zhao1,2，Tianxing Chen1，Tingting Zhang1，Shaoxian Song2
1. Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology2. School of Resources and Environmental Engineering, Wuhan University of Technology
摘 要：In order to develop a facile and precisely controlled approach to synthesize hierarchical mesoporous materials with tailored property, in this work, a novel study was carried out to fabricate montmorillonitechitosan hollow and hierarchical mesoporous spheres（MMTNS@CS-HMPHS） based on single-template layer-by-layer（Lb L） assembly. Scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, specific surface area analysis and X-ray photoelectron spectroscopy（XPS） analyses were carried out to characterize the morphology and surface properties of MMTNS@CS-HMPHS. Benefitting from the unique lamellar structure of MMTNS, mesoporous channels are formed on the shell of MMTNS@CS hollow spheres, resulting in high surface area. Moreover, the surface functionalization and pore size of MMTNS@CS-HMPHS can be easily tuned, due to the tailored property through Lb L assembly method.Besides the unique microstructure, MMTNS@CS-HMPHS also possesses the active sites generated from both MMT and chitosan, which greatly promotes its performance in fields of adsorption, drug delivery and catalyst supports, etc.
关键词：
