摘要
研究了自合成的巯基树脂对Ag+、Hg2+、Cr3+的静态吸附性能.结果表明,该树脂对3种离子吸附能力强,吸附量分别达6.56、3.25、2.10mmol/g.树脂对各金属离子等温吸附在实验浓度范围内符合兰缪尔(Langmuir)或弗伦德利希(Freundlich)方程.吸附机理研究表明,巯基与金属离子发生了离子交换和配位反应,化学吸附起支配作用.
The static adsorption properties of the sulfhydryl-resin for metal ions (Ag^+、Hg^(2+)、Cr^(3+)) were studied . The results indicate that this resin has higher adsorption capacities for Ag^+、Hg^(2+)、Cr^(3+).Their adsorption capacities are 6.56,3.25 and 2.10?mmol/g,respectively.The adsorption isotherms approximately fit the Langmuir or Freundlich equation within the range of experimental concentrations .The research on mechanism shows that ion exchange and complication reaction have occurred between resin and the metal ions ,and chemical adsorption is dominant .
出处
《应用科技》
CAS
2004年第12期61-62,65,共3页
Applied Science and Technology
基金
山东省自然科学基金资助项目(Q99B15)
