甲磺酸气体与碳酸钙和高岭土颗粒物的非均相反应

被引:1
作者
唐明金 [1 ,2 ]
李梦秋 [1 ,2 ]
朱彤 [1 ,2 ]
机构
[1] 环境模拟与污染控制国家重点实验室
[2] 北京大学环境科学与工程学院
关键词
甲磺酸气体; 非均相反应; 碳酸钙; 高岭土;
D O I
暂无
中图分类号
X513 [粒状污染物];
学科分类号
摘要
使用漫反射红外傅立叶变换光谱(diffuse reflectance infrared Fourier transform spectroscopy,DRIFTS)和离子色谱(ion chromatography,IC),研究了甲磺酸气体与CaCO3和高岭土颗粒物的非均相反应.研究表明,这两个反应都在颗粒物上生成了甲磺酸根离子(methanesulfonate MS-),这同甲磺酸气体与NaCl和实际海盐颗粒物的反应一致.当甲磺酸气体的浓度为1.34×1013 molecules·cm-3时,甲磺酸气体与CaCO3颗粒物反应的摄取系数为(1.21±0.06)×10-8(1σ),与高岭土颗粒物反应的摄取系数为(4.10±0.65)×10-10(1σ).这两个反应的摄取系数都明显低于相应的甲磺酸气体与NaCl和实际海盐颗粒物反应的摄取系数.
引用
收藏
页码:1772 / 1779
页数:8
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