ADSORPTION OF MACROPOROUS PHOSPHONIC ACID RESIN FOR INDIUM

在线阅读 下载PDF 导出详情
摘要 Theadsorptionkineticsandmechanismofanovelchelateresin,macroporousphosphonicacidresin(PAR)forIn(III)wereinvestigated.Thestaticallysaturatedadsorptioncapacityis216mg·g-1resinat298KinHAc-NaAcmedium.Theapparentadsorptionrateconstantisk298=4.84×10-5s-1.TheadsorptionbehaviorofPARforIn(III)obeystheFreundlichisotherm.Thethermodynamicadsorptionparameters,enthalpychange△H,freeenergychange△Gandentropychange△SofPARforIn(III)are11.5kJ/mol,-12.6kJ/moland80.8J/mol·K,respectively.TheapparentactivationenergyisEa=3.5kJ/mol.ThemolarcoordinationratioofthefunctionalgroupofPARtoIn(III)isabout3∶1.
机构地区 不详
出版日期 2004年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)