Adsorption of arsenic using high surface area magnetites
Adsorption of arsenic using high surface area magnetites
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DOI：
10.1007/s10653-010-9298-6
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发表时间：
2010-04
影响因子：
4.2
通讯作者：
K. Ohe;T. Oshima;Y. Baba
中科院分区：
文献类型：
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作者：
K. Ohe;T. Oshima;Y. Baba
通过在不同1-丁醇与水的摩尔比的1-丁醇/水混合物中沉淀来制备磁铁矿（MEBWx）。结果表明，在高正丁醇与水摩尔比的混合物中制备的磁铁矿具有较高的比表面积。As（III）和As（V）在磁铁矿上的吸附等温线在303 K时符合Langmuir吸附模型。在混合物中制备的磁铁矿的吸附容量高于那些没有1-丁醇制备的磁铁矿。它们的吸附容量随着比表面积的增加而增加。
Magnetites (MEBWx) were prepared by precipitation in 1-butanol/water mixtures of various mole ratios of 1-butanol to water. It was found that the magnetites prepared in the mixture with high mole ratio of 1-butanol to water have high specific surface area. The adsorption isotherms of As(III) and As(V) with the magnetites at 303 K fitted the Langmuir model well. The adsorption capacities of the magnetite prepared in the mixtures were higher than those of the magnetite prepared without 1-butanol. Their adsorption capacities increased with increasing specific surface area.