首页|用于焦化废水脱除苯酚的亲水性多孔炭纳米球基表面分子印迹聚合物的制备

用于焦化废水脱除苯酚的亲水性多孔炭纳米球基表面分子印迹聚合物的制备

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  • 国家科技期刊平台
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以多L炭纳米球(PCMSs)作为载体,采用双功能单体制备了一种亲水性表面分子印迹材料(AMPS-Am/MIP),提高在焦化废水中选择性吸附苯酚的能力.对AMPS-Am/MIP的表面形貌、结构、热稳定性和亲水性能进行了考察,并详细研究了其吸附动力学、吸附等温线、吸附选择性和吸附再生性等吸附性能.结果 显示,制备的AMPS-Am/MIP在180 min达到吸附平衡,此时对苯酚的吸附量为47.59 mg g-1;相对选择因子可达1.67,在5次吸附-再生循环后吸附量仍保持在80％以上,表明AMPS-Am/MIP具有良好的吸附性能.当pH值在8左右(接近焦化废水pH值)时,吸附容量维持在46.84 mg g-1,表明AMPS-Am/MIP在焦化废水处理中的适用性和高效性.
A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater
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.

Surface molecularly imprinted materialPhenolHydrophilicityAdsorptionPorous carbon nanospheres

张瑶、秦蕾、崔燕、刘伟峰、刘旭光、杨永珍

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太原理工大学新材料界面科学与工程教育部重点实验室,山西太原030024

太原理工大学化学化工学院,山西太原030024

太原理工大学新型碳材料研究院,山西晋中030600

表面分子印迹材料 苯酚 亲水性 吸附 多孔炭纳米球

国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金科技部国家重点研发计划山西省科技创新重点团队山西省自然科学基金National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational key research and development programShanxi Provincial Key Innovative Research Team in Science and TechnologyNatural Science Foundation of Shanxi Province

U1610255U16071202170617051603142519022222017YFB0603104201605D131045-10201801D221077U1610255U16071202170617051603142519022222017YFB0603104201605D131045-10201801D221077

2020

新型炭材料
中国科学院山西煤炭化学研究所

新型炭材料

CSTPCDCSCD北大核心SCIEI
影响因子：0.685
ISSN：1007-8827
年,卷(期)：2020.35(3)
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