负载Fe_3O_4/TiO_2β-环糊精聚合物的制备及应用  

Preparation and application of β-cyclodextrin polymers supported Fe_3O_4/TiO_2

作　　者：张艳[1] 宋新媛 张雄[1] ZHANG Xiong;SONG Xin-yuan;ZHANG Yan(Department of Chemistry,College of Science and Technology,Zhejiang International Studies University, Zhejiang Hangzhou 310012,China)

机构地区：[1]浙江外国语学院科学技术学院化学系,浙江杭州310012

出　　处：《化学研究与应用》2018年第8期1402-1408,共7页Chemical Research and Application

基　　金：浙江省科技计划项目(2017C32052)资助;浙江省新苗人才计划(2017R4180005)资助~~

摘　　要：实验采用β-环糊精与丙二酸反应获得一种β-环糊精(β-CD)的聚合物,通过分解负载法,将制得的Fe_3O_4/Ti O2磁性复合物负载到该聚合物上得到负载Fe_3O_4/Ti O2β-CD聚合物。制备聚合物的优化实验条件为:β-CD与丙二酸物质的量比为1:4,100℃下反应4h。当Fe_3O_4/Ti O2磁性复合物与丙二酸-β-CD聚合物质量比为1:5制备到的负载Fe_3O_4/Ti O2β-CD聚合物含钛量84577.16 mg·kg-1、含铁量12811.82 mg·kg-1,SEM表明它的粒径为0.033μm。该负载Fe_3O_4/Ti O2β-CD聚合物对罗丹明B的光催化降解效率为56.04%。对金属离子的吸附实验表明对Cr6+吸附率为59.64%,对Cu2+吸附率为71.02%。Aβ-cyclodextrin(β-CD)polymer was obtained by the reaction ofβ-cyclodextrin and malonic acid.The prepared Fe3O4/TiO2 magnetic complex was loaded onto the polymer by decomposing the loading method,and the loaded Fe3O4/TiO2 beta-CD polymer was obtained.Experiments showed that the best preparation condition of polymer was that the mole ratio ofβ-CD to malonic acid was 1:4 for 4 hours at 100℃.When the mass ratio of Fe3O4/TiO2 magnetic compound to malonic acid-beta-CD polymer is 1:5,Titanium content in theβ-CD Polymer supported Fe3O4/TiO2 is 84577.16 mg·kg-1,and the iron content is 12811.82 mg·kg-1.SEM shows that the size of the particles is 0.033μm.The photocatalytic degradation efficiency of theβ-CD Polymer supported Fe3O4/TiO2 to Rhodamine B was 56.04%.The adsorption experiments on metal ions showed that the adsorption rate of Cr 6+was 59.64%and the adsorption rate of Cu 2+was 71.02%.

关 键 词：Β-环糊精 负载Fe3O4/TiO2β-CD聚合物 吸附 磁性 

分 类 号：O623.7[理学—有机化学] O631.3[理学—化学]