磁性碳基复合纳米材料对四环素类抗生素的吸附和降解研究进展  

Research progress on adsorption and degradation of tetracycline antibiotics by magnetic carbon-based composite nanomaterials

作　　者：张江群 龙星宇 韦万丽[1] 夏品华 王安平 ZHANG Jiangqun;LONG Xingyu;WEI Wanli;XIA Pinhua;WANG Anping(Guizhou Normal University,School of Chemistry and Materials Science,Guiyang,550025,China;Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment,Guiyang,550001,China)

机构地区：[1]贵州师范大学,化学与材料科学学院,贵阳550025 [2]贵州省山地环境重点实验室,贵阳550001

出　　处：《环境化学》2024年第11期3806-3817,共12页Environmental Chemistry

基　　金：贵州省基础研究计划(科学技术基金)(黔科合基础-ZK[2021]一般073);贵州省科技厅社发攻关项目(黔科合支撑[2021]一般470)资助.

摘　　要：近年来,磁性碳基复合纳米材料(magnetic carbon-based composite nanomaterials,MCCN)因其具有比表面积大,方便磁分离及回收循环利用等优点而引起众多科研工作者关注.鉴于四环素类抗生素(tetracycline antibiotics,TCs)在环境中耐性强、不易分解,长期累积对人体健康造成潜在的威胁.由此,本文综述了近3年来发展的各类新型MCCN作为优良吸附剂和催化剂应用于TCs的去除,并在吸附和降解两方面对去除TCs的机理和影响因子作出总结.重点阐述了磁性碳基复合纳米材料作吸附剂时,其碳前驱体被炭化、活化、磁化以及杂原子改性后获得的磁性碳基材料,通过氢键、π-π作用、静电作用等机制吸附去除TCs;作为催化剂时,磁性碳基材料主要作为基底,负载功能化催化剂,通过激活一些过硫酸盐,促使催化过程中产生活性物种如·O_(2)^(-)、·OH、^(1)O_(2)等,将TCs降解为CO_(2)、H_(2)O或其他小分子物质.最后,对磁性碳基纳米复合材料未来的研究方向提出一些建议.In recent years,magnetic carbon-based composite nanomaterials(MCCN)had attracted the attention of many researchers because of their large specific surface area,convenient magnetic separation and recycling.In view of Tetracycline antibiotics(TCs)had strong tolerance and were not easy to decompose in the environment,and long-term accumulation posed a potential threat to human health.Therefore,the application of various new MCCN developed in recent three years was summarized in this study,magnetic carbon composite nano-materials were used as excellent adsorbents and catalysts to remove TCs,and summarized the mechanism and influencing factors of TCs removal in both adsorption and degradation.It was emphasized that when MCCN were used as adsorbents,the carbon precursors are carbonized,activated,magnetized and modified by heteroatoms,and TCs is removed by hydrogen bonding,π-πinteraction and electrostatic interaction.As a catalyst,magnetic carbon based materials mainly serve as substrates,loading functionalized catalysts,and activating some persulfates to promote the production of active species during the catalytic process,such as O_(2)^(-),·OH,^(1)O_(2) in the catalytic process,to degrade TCs into CO_(2),H_(2)O or other small molecules.Finally,some suggestions on the future research direction of magnetic carbon-based composite nanomaterials were put forward.

关 键 词：磁性碳基复合纳米材料 四环素类抗生素 吸附 降解 

分 类 号：X-1[环境科学与工程] O6[理学—化学]