Preparation of Polystyrene/α-Zirconium Phosphate Porous Materials and Separation of Oil-Water Emulsion
HUANG Shijie1, ZHAO Chunxia1,*, WANG Shuo1, HUANG Haoran1, LI Jiaxin1, LI Hui1, XIANG Dong1, LI Yuntao1,2,*
1 School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China 2 State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
Abstract: Hydrophobic andlipophilic porous materials have the ability to treat and purify oil-bearing wastewater. In this work, polystyrene (PSt) based three-dimensional porous materials (P(St-E)/α-ZrP) were prepared by high internal emulsion template method. Microstructure of the prepared materials were characterized by scanning electron microscope (SEM) and automatic mercury injection instrument. Meanwhile, their oil-water separation performance was tested and analyzed. The results showed that layered nanoparticles α-ZrP was stabilized in the dispersed phase of water in oil emulsion. After polymerization of monomers, α-ZrP inlayed on the skeleton of porous material to form a rough interface. The porous material had the best mechanical and hydrophobic properties with 5% α-ZrP incorporation. The adsorption rate of trichlormethane for P(St-E)/α-ZrP5 was as high as 54.2. P(St-E)/α-ZrP porous materials can efficiently separate non-ionic and cationic stabled oil-water emulsion because of the synergistic effects of size selecting effect and electronegativity of α-ZrP. The porous materials prepared in this work are expected to be used in the purification of wastewater containing emulsified oil, and have broad development prospects in the treatment of oil-bearing wastewater.
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