空气中含铁悬浮颗粒的穆斯堡尔研究  

Mossbauer studies on iron-containing atmospheric suspended particles.

作　　者：李爱国[1] 童永彭[1] 倪新伯[1] 王基庆[2] 郭盘林[1] 张桂林[1] 

机构地区：[1]中国科学院上海原子核研究所,上海201800 [2]中国科学院技术物理研究所,上海200583

出　　处：《中国环境科学》2001年第3期198-202,共5页China Environmental Science

基　　金：中国科学院'九五'重大项目(KJ951-A1-409);国家自然科学基金(1993 5020)

摘　　要：对上海市区不同地点空气中采集的含铁悬浮颗粒进行了穆斯堡尔光谱测量和研究.结 果表明,铁在隧道气溶胶中主要以(-Fe2O3的形式存在,其粒径约10nm,在公园和高架路主要是 高自旋三价铁,可能以硫酸铁盐和少量的(-FeOOH的形式存在.为进一步判明公园和高架路气 溶胶中铁的化学形态,结合扫描质子微探针的测量结果进行了分析,对铁的氧化物转化为硫酸 铁化合物的化学过程也进行了讨论.：Iron-containing atmospheric suspended particles samples were collected at different places of urban district in Shanghai City; and studied with measur e by M?ssbauer spectroscopy. The results show that the iron of the atmospheric a erosols in the tunnel is mainly existed in the form of (-Fe2O3 with particle siz e about 10nm; while that in the viaduct and park is mainly high spin Fe3+ possib ly existing in the form of sulfate and a small amount of (-FeOOH. In order to ex plore further the iron chemical form of aerosols in the viaduct and park, the me asuring results with SPM(scanning proton micro-probe) have been analyzed; and th e chemical process of the iron oxides converted to iron sulfate also discussed.

关 键 词：穆斯堡尔光谱分析 气溶胶 含铁悬浮颗粒 空气 大气监测 

分 类 号：X831[环境科学与工程—环境工程] X513