基于黄药子药渣制备微孔碳材料及其吸附氯霉素的研究  

Synthesize of microporous carbon materials from Dioscorea bulbifera L.medicine residue and its adsorption of chloramphenicol

作　　者：吴媛颖 周丹[1] 李海霞[1] 邱军强 徐丹 WU Yuan-ying;ZHOU Dan;LI Hai-xia;QIU Jun-qiang;XU Dan(Key Laboratory of Tropical Translational Medicine of Ministry of Education,Hainan Key Laboratory for Research and Development of Tropical Herbs,Haikou Key Laboratory of Li Nationality Medicine,School of Pharmacy,Hainan Medical University,Haikou 571119,China)

机构地区：[1]热带转化医学教育部重点实验室,海南省热带药用植物研究开发重点实验室,海口市黎族医药重点实验室,海南医学院药学院,海南海口571199

出　　处：《化学研究与应用》2023年第1期161-167,共7页Chemical Research and Application

基　　金：海南省自然科学基金青年项目(219QN219)资助;海南省自然科学基金高层次人才项目(220RC618)资助。

摘　　要：本文通过NaCl/KCl活化黄药子残渣制备微孔碳材料(DBL-800-AC)用于氯霉素的吸附研究。采用粉末X射线衍射仪(PXRD)、拉曼光谱仪(Raman)、比表面积及孔径分析仪(BET)等仪器表征碳材料稳定性、化学组成、石墨化程度和孔隙结构。探讨NaCl/KCl活化物、溶液pH、温度、氯霉素初始浓度和离子强度对氯霉素吸附性能的影响。采用NaCl/KCl活化剂进行活化后,DBL-800-AC的比表面积达到1634 m^(2)/g,总的孔体积为0.85 m^(2)/g,表明DBL-800-AC微孔碳具有丰富的孔隙结构。当pH值为5时,温度35℃时,DBL-800-AC吸附氯霉素的吸附量约900 mg/g。吸附过程中动力学模型符合二级动力学模型,等温模型可用Freundlich吸附等温模型描述。中药药渣制备的微孔碳材料是有效的去除水中氯霉素的吸附剂。In this article,microporous carbon materials are prepared for the adsorption of chloramphenicol by NaCl/KCl activating the residue of Dioscorea bulbifera L. . The microporous carbon materials are characterized by powder X-ray diffraction instrument(PXRD),Raman spectrometer(Raman),specific surface area and aperture analyzer(BET)to analyze its stability,chemical composition,graphitization degree and pore structure.The effects of NaCl/KCl activates,solution pH,temperature and ionic strength on the adsorption property of chloramphenicol are explored.After activation with NaCl/KCl activator,the specific surface area of DBL-800-AC reaches 1634 m^(2)/g,and the total pore volume is 0.85 m^(2)/g,showing that DBL-800-AC microporous carbon has rich pore structure.When the pH is 5 and the temperature is 35 ℃,the adsorption capacity of chloramphenicol on DBL-800-AC adsorbent is about 900 mg/g.During the adsorption process,the adsorption dynamic model conforms to pseudo-second-order kinetic model,and the isothermal model can be described by the Freundlich adsorption model.The microporous carbon materials derived from the Chinese herbal medicine residue is an effective adsorbent for removing chloramphenicol from wastewater.

关 键 词：中药药渣 碳材料 微孔 吸附 氯霉素 

分 类 号：O613.7[理学—无机化学]