Preparation of Porous Polysulfone Microspheres and Their Application in Removal of Oil from Water
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- 作者：Qingbo Yu ; Yulun Tao ; Yiping Huang ; Zhongqing Lin ; Yonglong Zhuang ; Lanlan Ge ; Yuhua Shen ; Miao Hong ; Anjian Xie
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2012
- 出版时间：June 13, 2012
- 年：2012
- 卷：51
- 期：23
- 页码：8117-8122
- 全文大小：418K
- 年卷期：v.51,no.23(June 13, 2012)
- ISSN：1520-5045
文摘
The monodisperse porous polysulfone (PSF) microspheres with hollow core/porous shell structure were prepared by a water-in-oil-in-water (W/O/W) emulsion solvent evaporation method. The morphology of PSF is investigated by using three different surfactants such as oleic acid, polyvinylpyrrolidone and polyoxyethylen(20)-sorbitanmonooleat. The prepared microspheres are developed as sorbents to remove oil from water due to their highly hydrophobic and superoleophilic properties. The PSF microspheres synthesized in the presence of oleic acid exhibit the best separation efficiency, which is 44.8 times higher than that of the pristine PSF powder. The microspheres with appropriate size, unsinkable properties, and excellent reproducibility can be quickly distributed and collected in seconds on the surface of water. The pore structure of PSF microspheres and interaction between oil and PSF are proposed to explain the high efficiency.