磁性松塔/松针基活性炭的制备及对Pb^(2+)吸附性能研究  

Study on preparation of activated carbon based on magnetic pine cone/pine needle and adsorption properties of Pb^(2+)

作　　者：袁帅 赵雪松[3] 王丽[1,2] 李奇 YUAN Shuai;ZHAO Xue-song;WANG Li;LI Qi(College of Material Science and Art Design,Inner Mongolia Agricultural University,Hohhot 010018,China;Inner Mongolia Key Laboratory of Sandy Shrubs Fibrosis and Energy Development and Utilization,Hohhot 010018,China;College of Mechanical and Electrical Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China)

机构地区：[1]内蒙古农业大学材料科学与艺术设计学院,内蒙古呼和浩特010018 [2]内蒙古自治区沙生灌木资源纤维化和能源化开发利用重点实验室,内蒙古呼和浩特010018 [3]内蒙古农业大学机电工程学院,内蒙古呼和浩特010018

出　　处：《应用化工》2022年第6期1675-1680,共6页Applied Chemical Industry

基　　金：内蒙古自治区科学技术厅项目(2019GG018)。

摘　　要：采用KOH为活化剂,戊二醛为交联剂,FeCl_(3)为磁化剂制备磁性松塔/松针基活性炭(MACp)。研究制备条件和吸附条件对活性炭吸附Pb^(2+)性能的影响,通过多种表征方法分析活性炭对Pb^(2+)的吸附机理。结果表明:活性炭具有发达的孔隙结构,比表面积较大,表面含有丰富的含氮含氧官能基团,活性炭已成功赋磁,对Pb^(2+)的最大吸附量为272.24 mg/g;吸附过程符合准二级动力学模型和Freundlich吸附等温线模型,吸附过程容易进行。Used KOH as activator and glutaraldehyde as crosslinking agent and FeCl_(3)as magnetizing agent to make pine cone/pine needle-based activated carbon(MACp).The effects of preparation conditions and adsorption conditions on the adsorption performance of activated carbon for Pb^(2+)were studied,the adsorption mechanism of activated carbon for Pb^(2+)was analyzed by various characterization methods.The results show that the activated carbon has developed pore structure,large specific surface area and abundant nitrogen and oxygen functional groups on its surface,the activated carbon has been successfully magnetized,the maximum adsorption capacity of Pb^(2+)is 272.24 mg/g.The adsorption process conforms to the quasi-second-order kinetic model and Freundlich adsorption isotherm model,and the adsorption process is easy to proceed.

关 键 词：磁性 松塔 松针 活性炭 吸附 Pb^(2+) 

分 类 号：TQ351[化学工程] TQ317[环境科学与工程—环境工程] X506