化工环保2017，Vol.37Issue(3)：340-345,6.DOI:10.3969/j.issn.1006-1878.2017.03.016
废无汞碱性电池极性材料制备锰锌铁氧体磁性纳米颗粒
Preparation of manganese-zinc ferrite magnetic nano-particles using spent polar material in mercury-free alkaline battery
摘要
Abstract
The spent polar material in mercury-free alkaline batteriy was leached in nitric acid and added ferric nitrates and sugar to form the precursor,and then manganese-zinc ferrite magnetic nano-particle was prepared by roasting.The conditions for acid leaching and roasting were optimized.The formation and thermal decomposition processes of the precursor wereinvestigated by FTIR and DTA-TG methods.The manganese-zinc ferrite was characterized by XRD,FTIR,TEM methods and vibrating sample magnetometer.The results showed that:Under the optimum leaching conditions of H2O2 amount 3％ (w),ratio of liquid to solid 10 mL/g,nitric acid concentration 4 mol/L,leaching temperature 40 ℃and leaching time 10 min,the leaching rate of manganese and zinc both reached 100％;The precursor was gluconate,and the optimum roasting conditions were roasting temperature 450 ℃ and roasting time 2 h;The manganese-zinc ferrite prepared under these conditions was spinel Mn0.5Zn0.5Fe2O4 with spherical particle shape,uniform size and good magnetic performance.关键词
废碱性电池/蔗糖/硝酸盐/锰锌铁氧体/磁性纳米颗粒Key words
spent alkaline batteriy/sugar/nitrate/manganese-zinc ferrite/magnetic nano-particle分类
资源环境引用本文复制引用
郝旗,余静,袁率,朱顺利,王博,邱海浪..废无汞碱性电池极性材料制备锰锌铁氧体磁性纳米颗粒[J].化工环保,2017,37(3):340-345,6.基金项目
国家自然科学基金项目(51408076) （51408076）
四川省教育厅科研项目(15ZA0189) （15ZA0189）
成都信息工程大学大学生创新创业训练计划项目(CX2015050). （CX2015050）
