ZHANG Yao, QIN Lei, CUI Yan, LIU Wei-feng, LIU Xu-guang, YANG Yong-zhen. A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater. New Carbon Mater., 2020, 35(3): 220-231. doi: 10.1016/S1872-5805(20)60486-3
Citation:
ZHANG Yao, QIN Lei, CUI Yan, LIU Wei-feng, LIU Xu-guang, YANG Yong-zhen. A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater. New Carbon Mater., 2020, 35(3): 220-231. doi: 10.1016/S1872-5805(20)60486-3
ZHANG Yao, QIN Lei, CUI Yan, LIU Wei-feng, LIU Xu-guang, YANG Yong-zhen. A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater. New Carbon Mater., 2020, 35(3): 220-231. doi: 10.1016/S1872-5805(20)60486-3
Citation:
ZHANG Yao, QIN Lei, CUI Yan, LIU Wei-feng, LIU Xu-guang, YANG Yong-zhen. A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater. New Carbon Mater., 2020, 35(3): 220-231. doi: 10.1016/S1872-5805(20)60486-3
Key Laboratory of Interface Science and Engineering in Advanced Materials(Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China;
2.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
3.
Institute of New Carbon Materials, Taiyuan University of Technology, Jinzhong 030600, China
Funds:
National Natural Science Foundation of China (U1610255, U1607120, 21706170, 51603142, 51902222), National key research and development program (2017YFB0603104), Shanxi Provincial Key Innovative Research Team in Science and Technology (201605D131045-10), Natural Science Foundation of Shanxi Province (201801D221077).
A novel hydrophilic surface molecularly imprinted polymer from bi-functional monomers on a porous carbon nanosphere support (AMPS-Am/MIP) was prepared to improve the selective adsorption capacity towards phenol from coking wastewater using hydrophilic 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and acrylamide (Am) as the monomers, and phenol as the imprinting molecule. The surface morphology, functional groups, thermal stability and hydrophilicity of AMPS-Am/MIP were investigated, and the adsorption properties including kinetics, isotherms, selectivity and regeneration were tested. Results showed that the adsorption of AMPS-Am/MIP towards phenol in water reaches equilibrium in 180 min and the highest adsorption capacity was 96.59 mg g-1. Its selection factor for phenol is as high as 1.67 in the presence of structural analogs, quinoline and hydroquinone. The adsorption capacity remained above 80% of the initial adsorption value after five adsorption-regeneration cycles. When the pH value of the phenol-containing water was around 8, close to that of coking wastewater, the adsorption capacity reached 46.84 mg g-1, indicating the applicability and high efficiency of AMPS-Am/MIP for phenol adsorption in alkaline coking wastewater.
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