摘要
合成了新型螯合树脂聚苯乙烯负载葡糖胺(PS-GA),并研究了所合成树脂对Pd(II)的吸附容量、吸附动力学、等温吸附等静态吸附性能及影响吸附的因素。结果表明:该树脂对Pd(II)的吸附量较高;树脂对Pd(II)的吸附为液膜扩散控制,吸附的活化能为59.76 kJ/mol;在实验浓度范围内,对Pd(II)的等温吸附符合弗伦德利希方程;较高温度有利于吸附;树脂可用2%的硫脲-0.1 mol/L HNO3清洗再生,再生后仍保持良好的吸附能力。
A novel chelating resin,polystyrene-supported glucosamine（PS-GA）,was prepared and its static adsorption properties for Pd（Ⅱ） such as capacity,dynamics and isotherm adsorption were studied,as well as various factors affecting the adsorption.The results indicated that： This resin had higher adsorption capacity for Pd（Ⅱ）.The adsorption dynamics indicated that adsorption was controlled by the liquid film diffusion.Value of adsorption activation energy calculated was 59.76 kJ/mol.The adsorption isotherms approximately fitted Freundlich equation within the range of experimental concentration.The suitable adsorption conditions were higher temperature.In addition,they had also high adsorption capacity after being regenerated by 2% thiourea in 0.1 mol/L HNO3.
出处
《青岛大学学报（工程技术版）》
CAS
2008年第4期69-73,共5页
Journal of Qingdao University(Engineering & Technology Edition)
基金
山东省自然科学基金(Y2005F11)
