摘要
研究了4种氨基酸 (甘氨酸、赖氨酸、天冬氨酸、谷氨酸 )在粘土高岭石上的吸附等温线以及金属铜离子对其等温线的影响。研究表明 ,氨基酸在高岭石上的吸附等温线以及金属铜离子存在时的吸附等温线均属Langmuir型等温线 ;铜离子浓度增加时 ,其等温线斜率也增加 ,并认为体系可形成Ⅰ型三元表面络合物 ,铜离子对氨基酸在高岭石上等温线影响的规律和在相同体系中它对氨基酸在高岭石上交换吸附百分率E( % )
This paper studied the adsorption isotherm curves of four amino acids (glycine, aspartic acid, glutamic acid ,and lysine)and the effects of different concentrations of Cu2+on them. The type of these adsorption isotherm curves of the amino acids on the kaolmite belongs to Langmuir type. The slopes of these adsorption isotherm curves increased with increasing concentrations of Cu2+added .It can be explained in terms of formation of Ⅰtype ternary surface complexes in these systems.
出处
《海洋科学》
CAS
CSCD
北大核心
2002年第9期1-4,共4页
Marine Sciences
