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Sonication‐Aided Formation of Hollow Hybrid Nanoparticles as High‐Efficiency Absorbents for Dissolved Toluene in Water
Author(s) -
Huang Ting,
Xu Liju,
Wang Chen,
Yin Zheng,
Qiu Dong
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201501027
Subject(s) - monomer , toluene , sonication , chemical engineering , colloid , polymerization , emulsion , hydrolysis , pulmonary surfactant , chemistry , nanoparticle , emulsion polymerization , polymer , organic chemistry , chromatography , engineering
A surfactant‐free emulsion polymerization process was developed to produce hollow hybrid nanoparticles (HHNP thereafter). Ultrasonication was found not only to help the generation of nanosized monomer droplets but also to generate surface active species through mediating the hydrolysis of the monomer, 3‐(methacryloyloxy) propyltrimethoxysilane (MPS), thus stabilizing the oil/water interface. The hollow structure was formed based on a soft template approach, where the partially hydrolyzed monomer served as emulsifier and polymerized at the interface to form a hybrid shell. These HHNPs were used to absorb dissolved toluene in water and it was found they could reduce the toluene level down to zero, a level hardly being achieved by other methods. Combined with their good colloidal stability in water, these HHNPs are very promising colloidal collectors for dissolved organic solvents, in order to generate high quality water from contaminated water.

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