分光光度计法测定石榴石铁氧体中铋离子含量  

Content Determination of Bi^(3+) in Yttrium Iron Garnet by Spectrophotometry

作　　者：王丽丽 林叶红 陈思琦 黄志高 WANG Li-li;LIN Ye-hong;CHEN Si-qi;HUANG Zhi-gao(College of Physics and Energy,Fujian Normal University,Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials,Fuzhou 350117,China;Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage,Fuzhou 350117 ,China;Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Xiamen 361005 ,China)

机构地区：[1]福建师范大学物理与能源学院福建省量子调控与新能源材料重点实验室,福建福州350117 [2]福建省太阳能转换和储能工程技术研究中心,福建福州350117 [3]福建省半导体光电材料及其高效转换器件协同创新中心,福建厦门361005

出　　处：《福建师范大学学报（自然科学版）》2019年第3期29-35,共7页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金面上基金资助项目(61574037);福建省科技厅青年创新项目(2016J05117)

摘　　要：利用碘化钾分光光度法测定Bi的标准曲线,并用以分析溶胶-凝胶法制备得到Bi_(0.7)Y_(2.0)Ca_(0.3)Zr_(0.3)Fe_(4.7)O_(12)石榴石纳米颗粒的Bi^(3+)含量.实验表明,当钇铁石榴石样品的煅烧温度越高时,Bi^(3+)的损失量越大.当煅烧温度为700℃以下时,Bi^(3+)损失量在3%以内,当煅烧温度分别为800、900℃和1 000℃时,Bi^(3+)的损失量为4.53%,9.74%和17.73%.Bi^(3+)的损失量与煅烧温度满足高斯变化规律,该结果可为石榴石铁氧体中Bi^(3+)含量提供依据.In this paper,we chose the way of potassium iodide spectrophotometry to measure Bi standard curve,and analyze Bi^3+ content in Bi0.7Y2.0Ca0.3 Zr0.3 Fe4.7O12 garnet nanoparticles prepared by the sol-gel method.The results showed that when the calcining temperature of yttrium iron garnet was higher,the loss of Bi^3+ was larger.When calcining temperature was below 700 °C,the loss of Bi^3+ was within 3%.When the calcination temperatures were 800℃,900℃ and 1 000,the loss of Bi^3+ was 4.53%,9.74% and 17.73%,respectively.The loss of Bi Bi^3+ with calcination temperature was in accordance with gaussian variation law,which provided the basis to forecast Bi^3+ content in yttrium iron garnet.

关 键 词：钇铁石榴石 分光光度计法 Bi3+损失量 碘化钾 溶胶-凝胶法 

分 类 号：TM277.3[一般工业技术—材料科学与工程]