Adsorption of biodegradable chelating compounds on inorganic oxides

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• 作者：A. Dę ; bczak ; J. Ryczkowski ; J. Patkowski
• 关键词：Aminopolycarboxylates ; Inorganic oxides ; FT-IR/PAS
• 刊名：Applied Surface Science
• 出版年：2010
• 出版时间：15 June 2010
• 年：2010
• 卷：256
• 期：17
• 页码：5449-5452
• 全文大小：380 K

文摘

The Fourier transform infrared photoacoustic spectroscopy (FT-IR/PAS) method to characterize the interactions between selected aminopolycarboxylic acids and inorganic oxides surfaces is reviewed. In this work, the adsorption of four aminopolycarboxylates (biodegradable and with augmented biodegradability; all in the form of sodium salts), viz. ethylenediaminedisuccinic (EDDS), diethylenetriaminepentaacetic (DTPA), N-(hydroxyethyl)ethylenediaminetriacetic (HEDTA) and methylglycinediacetic (MGDA) acids on: zirconia, titania and alumina was carried out. The obtained results differ depending on the kind of aminopolycarboxylic acid used and the type of oxide support adsorbent characterized by its pH_PZC value.