摘要
锰钾矿是一种对重金属离子有较强吸附作用的水处理剂.实验研究了不同条件下合成的锰钾矿化合物在水溶液中对铅离子吸附能力的影响,并对吸附反应机理进行了初步探讨.实验结果表明:合成锰钾矿在较高温度、中性pH值、低粒径的条件下对铅离子具有较强的吸附作用.当铅离子质量浓度小于300 mg.L-1时,吸附等温线符合Langmuir模型,最大理论吸附量为126.58 mg.g-1.
Cryptomelane is an effective water treatment agent with high adsorptive ability for heavy metals. In this paper, adsorption of Pb（Ⅱ） by synthesis cryptomelane in aqueous solution is studied and the reaction mechanism of adsorption is also discussed. The results show that the maximum adsorption amount of Pb （Ⅱ） is 126.58 mg/g. The regression equation indicates that the adsorption mechanism of Pb （Ⅱ） on the cryptomelane can be well fitted by the Langmuir model when the concentration of Pb（Ⅱ） is less than 300 mg/L.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第3期373-376,共4页
Journal of Tongji University:Natural Science
