Sonication-Aided Formation of Hollow Hybrid Nanoparticles as High-Efficiency Absorbents for Dissolved Toluene in Water
Sonication-Aided Formation of Hollow Hybrid Nanoparticles as High-Efficiency Absorbents for Dissolved Toluene in Water
复制标题
超声辅助形成中空杂化纳米颗粒作为水中溶解甲苯的高效吸收剂
DOI：
10.1002/asia.201501027
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发表时间：
2016
影响因子：
4.1
通讯作者：
Qiu Dong
中科院分区：
文献类型：
--
作者：
Huang Ting;Xu Liju;Wang Chen;Yin Zheng;Qiu Dong
开发了无表面活性剂的乳液聚合方法以产生中空混合纳米颗粒（此后称为HHNP）。发现超声处理不仅有助于生成纳米尺寸的单体液滴，而且还通过介导单体3-（甲基丙烯酰氧基）丙基三甲氧基硅烷（MPS）的水解来生成表面活性物质，从而稳定油/水界面。中空结构是基于软模板方法形成的，其中部分水解的单体充当乳化剂并在界面处聚合以形成杂化壳。这些HHNP用于吸收溶解在水中的甲苯，发现它们可以将甲苯水平降低到零，这是通过其他方法很难达到的水平。结合其在水中的良好胶体稳定性，这些HHNP是非常有前途的溶解有机溶剂的胶体捕收剂，以从污染的水中产生高质量的水。
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.