高等学校化学学报2024，Vol.45Issue(4)：33-44,12.DOI:10.7503/cjcu20230481
P掺杂煤沥青基多孔炭的制备及对废水中广谱抗生素的吸附性能
Preparation of P-doped Coal Pitch-based Porous Carbon and Its Adsorption Performance for Broad-spectrum Antibiotics in Wastewater
摘要
Abstract
P-doped porous carbon(CPCx)was prepared by one-step method with coal tar pitch as carbon,sodium hypophosphite monohydrate as phosphorus sources and MgO as template coupled with KOH activation.CPCx were characterized by SEM,BET,FTIR,XPS,and the adsorption properties of porous carbon for oxytetracycline and chloramphenicol were investigated.When the mass ratio of coal tar pitch to phosphorus source is 2∶1,the BET results show that the total specific surface area and the microporous specific surface area of as-made CPC2.0 are 2739 and 2353 m2/g,respectively,and the average pore size is 3.78 nm.The results of FTIR indicate that the phenyl absorption peak for CPCx is deepened compared to the original carbon,as well as a new stretching vibration peak of P—O is displayed.The XPS results demonstrate that the P content and the most stable C3—P=O functional group content of phosphorus configuration on the surface of carbon materials are 0.45%and 37.7%(molar fraction).The adsorption process of antibiotics by CPC2.0 can be better described by Langmuir model and pseudo second-order kinetic model,and the maximum adsorption capacities of CPC2.0 for oxytetracycline and chloramphenicol are 1780 and 1122 mg/g,respectively,showing better adsorption performance.关键词
多孔炭/吸附/磷掺杂/抗生素Key words
Porous carbon/Adsorption/Phosphorus doping/Antibiotic分类
化学化工引用本文复制引用
余谟鑫,史文旭,孙宇航,张晨,王晓婷..P掺杂煤沥青基多孔炭的制备及对废水中广谱抗生素的吸附性能[J].高等学校化学学报,2024,45(4):33-44,12.基金项目
安徽省博士后科研项目(批准号:2021B547)和安徽省教育厅自然科学研究项目(批准号:KJ2021A0399)资助. Supported by the Anhui Province Postdoctoral Research Project,China(No.2021B547)and the Anhui Provincial Department of Education Natural Science Research Project,China(No.KJ2021A0399). （批准号:2021B547）
