8-羟基喹哪啶螯合树脂对Cr^(6+)的吸附性能研究  

Adsorption Properties for Cr^(6+) of Crosslinked Polystyrene Containing 8-Hydroxyquinaldine

作　　者：周小华 项朋志[2] 张永明[2] 

机构地区：[1]云南商务信息工程学校,云南昆明650204 [2]云南广播电视大学化学工程学院,云南昆明650223

出　　处：《云南化工》2013年第1期4-7,共4页Yunnan Chemical Technology

基　　金：云南省教育厅基金;2012C227

摘　　要：研究了8-羟基喹哪啶螯合树脂(PS-HQD)在HAc-NaAc体系中对铬离子的吸附性能。结果表明,该树脂吸附Cr6+的最佳pH为5.0,树脂吸附的平衡时间为8 h,吸附容量9.68 mg/g。表观速率常数k298=1.87×10-4s-1,一次洗脱回收率达94.3%。吸附过程符合Langmuir和Freundlich模型。In this paper, the chelating resin containing 8-Hydroxyquinaldine＇s adsorption properties for Cr6 ＋ was studied. The optimum pH is 5.0, the adsorption balance time is 8 hour. The statically satu- rated sorption capacity is 9.68mg/g resin. The adsorption rate constant is K29s = 1.87 ×10^-4s^-1, the first desorption rate is 94.3 % . The adsorption process can be described by Langmuir and Freundlich models.

关 键 词：8-羟基喹哪啶螯合树脂(PS-HQD) 吸附 Cr6+ 

分 类 号：O647.3[理学—物理化学]