Adsorption of small uremic toxin molecules onto zeolites: a first step towards an alternative kidney

摘要：

The model-like adsorption properties of MFI-type zeolites with different degrees of hydrophobicity and charge compensating cations were investigated for the removal of pcresol from different aqueous solutions at 37°C. Pure silica MFI and alumino-silicate MFI (Si/Al = 30.4), with H+, Na+, K+ and Mg2+ as charge compensating cations were used for the study. Adsorption isotherms and microcalorimetric measurements show a strong affinity of pcresol towards all MFI type zeolites. This strong affinity is still present in physiological serum solution containing urea molecules. The effect of the nature of the charge compensating cation and present water molecules on p-cresol affinity is discussed together with spectroscopic results and Monte-Carlo simulations of the adsorption process.

作者: D. Bergé-Lefranc C. Vagner O. Schaf P. Boulet H. Pizzala J. L. Paillaud R.Denoyel

作者单位: MADIREL, UMR 6121 CNRS - Universite de Provence, Centre de St Jerome,13397 Marseille Cedex 20, Franc TRACES, Universite de Provence, Case 512 - Centre de St Jerome, 13397 Marseille Cedex 20, France Laboratoire de Matériaux Minéraux, Université de Haute Alsace, UMR CNRS-7016,ENSCMu, 3 rue Alfred We MADIREL, UMR 6121 CNRS - Universite de Provence, Centre de St Jerome, 13397 Marseille Cedex 20, Fran

会议类型: 国际会议

会议名称: 第15届国际分子筛大会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-12（万方平台首次上网日期，不代表论文的发表时间）