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  

A hydrophilic surface molecularly imprinted polymer on a spherical porous carbon support for selective phenol removal from coking wastewater

作　　者：张瑶 秦蕾 崔燕 刘伟峰[1,3] 刘旭光[1,3] 杨永珍[1] ZHANG Yao;QIN Lei;CUI Yan;LIU Wei-feng;LIU Xu-guang;YANG Yong-zhen(Key Laboratory of Interface Science and Engineering in Advanced Materials(Taiyuan University of Technology),Ministry of Education,Taiyuan 030024,China;College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Institute of New Carbon Materials,Taiyuan University of Technology,Jinzhong 030600,China)

机构地区：[1]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 [2]太原理工大学化学化工学院,山西太原030024 [3]太原理工大学新型碳材料研究院,山西晋中030600

出　　处：《新型炭材料》2020年第3期220-231,共12页New Carbon Materials

基　　金：国家自然科学基金(U1610255,U1607120,21706170,51603142,51902222);科技部国家重点研发计划(2017YFB0603104);山西省科技创新重点团队(201605D131045-10);山西省自然科学基金(201801D221077).

摘　　要：以多孔炭纳米球(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p H值在8左右(接近焦化废水p H值)时,吸附容量维持在46.84 mg g-1,表明AM PS-Am/M IP在焦化废水处理中的适用性和高效性。A novel hydrophilic surface molecularly imprinted polymer from bi-functional monomers on a porous carbon nanosphere support(AM PS-Am/M IP)was prepared to improve the selective adsorption capacity tow ards phenol from coking wastew ater using hydrophilic 2-acrylamido-2-methylpropane sulfonic acid(AM PS)and acrylamide(Am)as the monomers,and phenol as the imprinting molecule.The surface morphology,functional groups,thermal stability and hydrophilicity of AM PS-Am/M IP were investigated,and the adsorption properties including kinetics,isotherms,selectivity and regeneration were tested.Results show ed that the adsorption of AM PS-Am/M IP tow ards phenol in water reaches equilibrium in 180 min and the highest adsorption capacity was96.59 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 p H value of the phenol-containing water was around 8,close to that of coking wastew ater,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.

关 键 词：表面分子印迹材料 苯酚 亲水性 吸附 多孔炭纳米球 

分 类 号：TQ127.11[化学工程—无机化工]