Molecular nanocapsule-decorated porous monolith: preparation and elimination of cationic dyes from water
Molecular nanocapsule-decorated porous monolith: preparation and elimination of cationic dyes from water
复制标题
分子纳米胶囊装饰的多孔整体：水中阳离子染料的制备和消除
DOI：
10.1039/c6ra10029e
复制
发表时间：
2016-01-01
期刊：
影响因子：
3.9
通讯作者：
Jin, Ming
中科院分区：
文献类型：
--
作者：
Hu, Ruoxi;Wan, Decheng;Jin, Ming
To deal with cationic organic micropollutants in water, a macroscopic and porous adsorbent with the surface decorated with negatively charged molecular nanocapsules is described. The molecular nanocapsule is obtained by transforming hydroxyls of hyperbranched polyglycerol (PG) into carboxyls, and some of the carboxyls are capped by polystyrene–NH2 (PS–NH2) to form a hydrophobic shell. The successful synthesis of PS–NH2 is supported by matrix-assisted laser desorption and ionization time-of-flight (MALDI-TOF) spectra. The dendritic amphiphile of PG–COOH@PS can self-assemble along a water/oil interface to form a high internal phase emulsion (HIPE), where the continuous oil phase is styrene/divinyl benzene (St/DVB) and the dispersed phase is small water droplets, with oil/water = 20/80 (weight ratio). Polymerization of the oil phase and removal of the water droplets leads to an open-cellular material termed polyHIPE. The polyHIPE is characterized by an open-cellular porous structure and the surface-attached dendritic amphiphiles, and can eliminate cationic organic dyes from water.
