| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Construction of Superhydrophobic-Superoleophilic Filter Paper by Seed Growing Method and Its Application in Oil-water Separation |
| YANG Fusheng1, ZHANG Yan1, LIU Xiaobin1, CHEN Yongzhe1, YANG Wu2,3
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1 College of Automotive Engineering, Lanzhou Institute of Technology, Lanzhou 730050, China;
2 College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China;
3 Ministry of Education,Key Laboratory of Ecological-environment-related Polymer Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
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Abstract In recent years, the leakage of crude oil and industrial organic solvents has seriously damaged the ecological environment where the orga-nisms live. It was urgent to purify the water polluted by oil and search for a fast and efficient oil-water separation material. In this paper, a la-yer of silver nanoparticles was assembled on the surface of filter paper by in-situ reduction method and seed growth method, its surface energy was reduced by grafting modification of dodecyl thiol and the superhydrophobic-superoleophilic filter paper with chemical corrosion resistance, thermal stability and excellent oil-water separation characteristics was successfully prepared. The superhydrophobic-superoleophilic filter paper was characterized by scanning electron microscope, X-ray diffractometer and contact angle tester. The results show the maximum contact angle of water droplet on the surface is 155°, rolling angle is less than 5°,the oil droplets can instantly through the filter paper, having high capacity of separation a variety of oil-water mixture, and oil-water separation efficiency is as high as 88%. Meanwhile,the oil which has been separated from water was analyzed by infrared spectrum, and there is no clear water peak was detected. So superhydrophobic-superoleophilic filter paper has a good application prospect in oil-water separation,because its preparation process was simple and the adhesion between silver nanometer and filter paper was strong.
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Published: 15 January 2020
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| About author:: Fusheng Yanggraduated from Northwest Normal University in June 2013, obtained the master of science degree, and has been teaching in Lanzhou Institute of Technology since October 2014, mainly engaged in the research of functional materials.;Wu Yang,professor and doctoral supervisor in Northwest Normal University. He graduated from Lanzhou Institute of Chemical Physics of Chinese Academy of Sciences in July 1998. Obtained doctor of science, and postdoctoral in Max Planck Institute for High Molecular Research (Mainz), Germany. Mainly engaged in the preparation, characterization and application research of nanomaterial and functional materials. He has published more than 100 SCI papers, applied for more than 8 invention patents, and published 2 monographs and 1 textbook. |
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2020, Vol. 34 
