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.
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)