Kinetics of phosphate adsorption on goethite: comparing batch adsorption and ATR-IR measurements

Journal of Colloid and Interface Science
Carina LuengoMarcelo Avena

Abstract

The adsorption kinetics of phosphate on goethite has been studied by batch adsorption experiments and by in situ ATR-IR spectroscopy at different pH, initial phosphate concentrations and stirring rates. Batch adsorption results are very similar to those reported by several authors, and show a rather fast initial adsorption taking place in a few minutes followed by a slower process taking place in days or weeks. The adsorption kinetics could be also monitored by integrating the phosphate signals obtained in ATR-IR experiments, and a very good agreement between both techniques was found. At pH 4.5 two surface complexes, the bidentate nonprotonated (FeO)(2)PO(2) and the bidentate protonated (FeO)(2)(OH)PO complexes, are formed at the surface. There are small changes in the relative concentrations of these species as the reaction proceeds, and they seem to evolve in time rather independently. At pH 7.5 and 9 the dominating surface species is (FeO)(2)PO(2), which is accompanied by an extra unidentified species at low concentration. They also seem to evolve independently as the reaction proceeds. The results are consistent with a mechanism that involve a fast adsorption followed by a slow diffusion into pores, and are not consistent ...Continue Reading

References

Jan 15, 1996·Journal of Colloid and Interface Science·P PerssonS Sjöberg
Mar 10, 2001·Journal of Colloid and Interface Science·Mario Villalobos, James O. Leckie
Mar 13, 2003·Environmental Science & Technology·Maarten Nachtegaal, Donald L Sparks
Apr 20, 2005·Journal of Colloid and Interface Science·Juan AnteloFlorencio Arce

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Citations

Jan 17, 2012·Environmental Science & Technology·Blahoslav MarsalekRadek Zboril
May 23, 2012·Environmental Science & Technology·Abhas SinghDaniel E Giammar
Jul 11, 2013·Environmental Science & Technology·Wei LiBrian L Phillips
Sep 3, 2013·Environmental Science & Technology·Xiaoming WangDonald L Sparks
Aug 4, 2012·Environmental Technology·Liana Alvares RodriguesMaria Lúcia Caetano Pinto da Silva
May 17, 2011·Plant Physiology·Jianbo ShenFusuo Zhang
Apr 5, 2012·Chemistry Central Journal·Ting-Ting ZhengAllan Holmgren
Apr 4, 2014·BioMed Research International·Vinod Vellora Thekkae PadilMiroslav Cerník
Jul 24, 2013·Journal of Colloid and Interface Science·M MalletS Naille
Feb 13, 2016·Environmental Science & Technology·Yanli YangJingyang Liu
Mar 13, 2015·Environmental Science & Technology·Lijun WangAndrew Putnis
Sep 2, 2010·Journal of Colloid and Interface Science·Ivan CarabanteJonas Hedlund
Jul 8, 2010·Journal of Hazardous Materials·Paola CastaldiSalvatore Deiana
Apr 22, 2010·Journal of Colloid and Interface Science·Juan AnteloRocío López
Jan 16, 2010·Colloids and Surfaces. B, Biointerfaces·Matteo CagnassoJon Chorover
Mar 24, 2009·Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine·Zhijun GuoWangsuo Wu
Feb 17, 2009·Journal of Colloid and Interface Science·Payman Roonasi, Allan Holmgren
Oct 8, 2015·The Science of the Total Environment·Wenbo Xie, Dongye Zhao
Apr 24, 2007·Journal of Colloid and Interface Science·Carina LuengoMarcelo Avena
Jul 15, 2015·Journal of Plant Nutrition and Soil Science = Zeitschrift Für Pflanzenernährung Und Bodenkunde·Jens KrusePeter Leinweber
Nov 18, 2010·Advances in Colloid and Interface Science·Russell J StewartHui Shao
Apr 5, 2015·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Carina V LuengoRicardo M Ferullo
Aug 11, 2015·Carbohydrate Polymers·Taranpreet Kaur, Moushumi Ghosh
Feb 12, 2011·Environmental Pollution·Andreas FritzscheKai U Totsche
Jul 27, 2012·Journal of Colloid and Interface Science·Kazuya MorimotoTsutomu Sato
Sep 19, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·James D KubickiDaniel R Strongin
Nov 2, 2016·Environmental Science & Technology·M Josick ComarmondHarald Foerstendorf
Jan 5, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Aniruddha DasShyam Biswas
May 7, 2011·Journal of Environmental Quality·Fiona KizewskiDean Hesterberg
Feb 8, 2019·Physical Chemistry Chemical Physics : PCCP·Ashour A AhmedOliver Kühn
Jun 11, 2019·Journal of Environmental Quality·Than T N DamMinh N Nguyen
May 15, 2020·Physical Chemistry Chemical Physics : PCCP·Jeison Manuel Arroyave, Marcelo Avena

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