【摘要】 本文探讨了两种常见大型海藻,即马尾藻（Sargassum fusiforme）和海带（Laminaria japonica）对重金属离子(Cu²⁺、Pb²⁺、Cd²⁺、Ni²⁺)的吸附热力学过程.结果表明,这两种海藻粉对重金属离子的吸附曲线基本符合Langmuir吸附模型,其吸附容量受温度的影响,马尾藻和海带粉对Cu²⁺的吸附均为吸热过程;25℃和35℃两组实验结果显示,其吸附容量随温度的升高而增加。吸附热分别为59.9、76.8kJ/mol.更多还原

【Abstract】 The article discusses the thermodynamics process of two large-scale familiar algae, Sargassum fusiforme and Laminaria japonica , absorbing heavy metal ions, for example Cu2+, Pb2 + ,Cd2 + , Ni2+ . It indicates that these two algaes absorption curves clearly accord with the Langmuir adsorption model. Temperature affects the algaes’ adsorption capacity. The processes of Sargassum fusiforme and Laminaria japonica adsorption Cu2+ are endothermal. Their adsorption capacity increases with temperature. The adsorption heat is 59. 5 kJ/mol and 76. 8 kJ/mol for 25℃ and 35℃, respectively.更多还原