AOPAN@PAN同轴纳米纤维的制备及吸附性能  

Preparation of AOPAN@PAN Coaxial Nanofiber Membrane and It's Adsorption Property

作　　者：任晶 王书刚[1] 李延春 杨清彪[1] 宋岩 李耀先[1] REN Jing;WANG Shugang;LI Yanchun;YANG Qingbiao;SONG Yan;LI Yaoxian(College of Chemistry, Jilin University, Changchun 130061, China;College of Materials Science ＆ Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China)

机构地区：[1]吉林大学化学学院,长春130021 [2]吉林化工学院材料科学与工程学院,吉林132022

出　　处：《高等学校化学学报》2018年第4期825-831,共7页Chemical Journal of Chinese Universities

基　　金：吉林省自然科学基金(批准号:20160101311JC);吉林省科技厅重点项目(批准号:20170204039GX);吉林市科技局项目(批准号:20161204)资助~~

摘　　要：将盐酸羟胺与聚丙烯腈(PAN)反应得到偕胺肟化聚丙烯腈(AOPAN)溶液,随后采用同轴静电纺丝技术,制备了以AOPAN为壳,PAN为芯的同轴纳米纤维(AOPAN@PAN).通过透射电子显微镜(TEM)、扫描电子显微镜(SEM)和红外光谱(FTIR)等对纤维的形貌、组成和力学性能进行了表征.结果表明,随着PAN用量的增加,AOPAN@PAN同轴纳米纤维的强度逐渐变大,当芯层与壳层质量比为1∶3时,纳米纤维的抗拉伸强度和断裂伸长率分别为3.677 MPa和18.03%;对Cu^(2+),Pb^(2+),CrO_4^(2-)和甲基橙(MO)的最大吸附量分别为135.1,151.2,120.48和43.45 mg/g;使水中Cu^(2+),Pb^(2+),CrO_4^(2-)和MO的浓度分别降低到0.17,0.03,0.06和0.91 mg/L.Amidoxylated polyacrylonitrile（ AOPAN） solution was prepared by the reaction of hydroxylamine hydrochloride and polyacrylonitrile（ PAN）. At the same time,the coaxial nanofibers（ AOPAN @ PAN） with AOPAN as shell and PAN as core was prepared by coaxial electrospinning technology. And the morphology,composition and mechanical properties of nanofibers were characterized by means of transmission electron microscopy（ TEM）,scanning electron microscopy（ SEM） and infrared（ FTIR）. The results showed that the strength of AOPAN@ PAN coaxial nanofibers increased with the increase of PAN dosage. The tensile strength and elongation at break of nanofibers was 3. 677 MPa and 18. 03% when the mass ratio of core to shell was 1 ∶ 3,and the maximum adsorption capacities of Cu^2＋,Pb^2＋,CrO4^2- and methyl orange（ MO） was 135. 1,151. 2,120. 48 and 43. 45 mg/g,respectively. At the same time,the concentrations of Cu^2＋,Pb^2＋,CrO4^2- and MO are reduced to 0. 17,0. 03,0. 06 and 0. 91 mg/L after treatment with this nanofiber.

关 键 词：同轴静电纺丝 偕胺肟化聚丙烯腈 金属离子吸附 染料 

分 类 号：O632.62[理学—高分子化学]