环境工程学报2024，Vol.18Issue(1)：150-159,10.DOI:10.12030/j.cjee.202309016
高比表面积掺氮多孔炭的制备及其对金霉素的吸附性能研究
Preparation of N-doped porous carbon with high specific surface area and its adsorption performance for chlortetracycline
摘要
Abstract
Coal pitch and melamine were taken as carbo source and nitrogen source,respectively,the nitrogen-doped porous carbon(MCCx)with high specific surface area was prepared by one-step pyrolysis method with MgO template coupled with KOH activation.The MCCx was characterized by BET、SEM、FTIR and XPS,and its adsorption capacity for chlortetracycline(CTC)was investigated.The results showed that when the mass ratio of coal bitumen to melamine was 0.5,the obtained MCC0.5 contained a large number of pores with accumulated fold laminates.The micropores specific surface area of MCC0.5 could reach 2 042 m2·g-1.The FTIR spectra of MCCx showed that the stretching vibration of the C=N of aromatic compounds appeared.XPS results showed that N element was successfully introduced in MCCx with the addition of melamine,and MCC0.5 had the highest pyridine N content.Langmuir adsorption isotherm model could well describe the adsorption process of CTC on MCC0.5,with the maximum theoretical adsorption capacity of 1 056 mg·g-1.关键词
三聚氰胺/金霉素/氮掺杂/多孔炭/化学吸附Key words
melamine/chlortetracycline/nitrogen doping/porous carbon/chemical adsorption分类
资源环境引用本文复制引用
余谟鑫,黄康,张振,张晨,王晓婷..高比表面积掺氮多孔炭的制备及其对金霉素的吸附性能研究[J].环境工程学报,2024,18(1):150-159,10.基金项目
安徽省博士后科研项目资助(2021B547) （2021B547）
安徽省高校自然科学研究项目(KJ2021A0399) （KJ2021A0399）
