废旧电池溶胶-凝胶法制备Mn-Zn铁氧体的研究  

Preparation of Mn-Zn Ferrite by Sol-gel Method Using Spent Batteries as Resource Materials

作　　者：席国喜[1] 杨理[2] 路迈西[1] 

机构地区：[1]中国矿业大学化学与环境工程学院,北京100083 [2]河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,新乡453007

出　　处：《人工晶体学报》2006年第1期54-57,共4页Journal of Synthetic Crystals

基　　金：河南省科技攻关计划项目(No.0424270148)

摘　　要：以硝酸溶解废旧碱性锌锰电池所得的溶液为原料,用溶胶-凝胶法制备出了具有尖晶石结构的Mn-Zn铁氧体。借助于XRD、IR和SEM技术,对制备过程进行跟踪检测并对纳米晶铁氧体的晶体形貌进行表征。研究表明:制备Mn-Zn铁氧体的适宜条件为:金属离子和柠檬酸的比例为1∶1(mol),pH=5.0,干凝胶煅烧时间为2h,煅烧温度为650℃;所得产物基本为球形,具有粒径小,分散均匀的特点。Using spent alkaline Zn-Mn batteries as resource materials through dissolving with nitric acid, Mn-Zn ferrite powders with cubic spinel structure were directly synthesized by sol-gel method. The asprepared nano-crystalline ferrite was characterized by XRD, IR and SEM. The results show that Mn-Zn ferrite with cubic spinel structure can be synthesized at calcined temperature of 650℃ for 2h when the molar radio of the total concentrations of metal ions to citric acid is 1 ： 1 and the solution with pH value 5. 0. The as-products show sphere structure with uniformity and little diameter.

关 键 词：废旧碱性锌锰电池 溶胶-凝胶 MN-ZN铁氧体 

分 类 号：X705[环境科学与工程—环境工程]