Interactions of calcium and fulvic acid at the goethite-water interface
作者： Li Ping Weng , Luuk K. Koopal , Tjisse Hiemstra , Johannes C.L. Meeussen , Willem H. Van Riemsdijk
DOI: 10.1016/J.GCA.2004.07.002
关键词: Proton binding 、 Calcium 、 Adsorption 、 Titration 、 Ligand 、 Ion binding 、 Chemistry 、 Inorganic chemistry 、 Goethite 、 Ternary numeral system
摘要: Abstract Interactions of calcium and fulvic acid (Strichen) with the surface goethite were studied batch titration experiments. The mutual influence interactions on adsorption acid, ions protons examined. Adsorption to decreased increase in pH (pH range 3–11). Addition Ca (1.0 mM) at intermediate high significantly enhanced acid. Compared pure goethite, presence significantly. In comparison simple linear sum bound between led a reduced low an pH. With released coadsorbed When was added, fewer experimental results can be adequately described using complexation model, Ligand Charge Distribution (LCD) which CD-MUSIC model for ion mineral oxides NICA binding humics are integrated. calculations, adequate descriptions ternary system data (Ca-fulvic acid-goethite) obtained parameters derived from three binary systems (fulvic acid-goethite, Ca-goethite Ca-fulvic acid) without further adjustment. calculations suggest that mainly due electrostatic effects.
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Edward Tipping, Humic Ion-Binding Model VI: An Improved Description of the Interactions of Protons and Metal Ions with Humic Substances Aquatic Geochemistry. ,vol. 4, pp. 3- 47 ,(1998) , 10.1023/A:1009627214459
Werner Stumm, Chemistry of the solid-water interface ,(1992)
David A. Dzombak, François M M Morel, Surface Complexation Modeling: Hydrous Ferric Oxide ,(1990)
T Hiemstra, J.C.M De Wit, W.H Van Riemsdijk, Multisite proton adsorption modeling at the solid/solution interface of (hydr)oxides: A new approach: II. Application to various important (hydr)oxides Journal of Colloid and Interface Science. ,vol. 133, pp. 105- 117 ,(1989) , 10.1016/0021-9797(89)90285-3
T Hiemstra, W.H Van Riemsdijk, G.H Bolt, Multisite proton adsorption modeling at the solid/solution interface of (hydr)oxides: a new approach. I: Model description and evaluation of intrinsic reaction constants joint international conference on information sciences. ,vol. 133, pp. 91- 104 ,(1989) , 10.1016/0021-9797(89)90284-1
Roger S. Swift, Organic Matter Characterization Methods of Soil Analysis Part 3—Chemical Methods. pp. 1011- 1069 ,(1996) , 10.2136/SSSABOOKSER5.3.C35
Aiguo Liu, Richard D Gonzalez, Adsorption/desorption in a system consisting of humic acid, heavy metals, and clay minerals Journal of Colloid and Interface Science. ,vol. 218, pp. 225- 232 ,(1999) , 10.1006/JCIS.1999.6419
J.M Zachara, C.T Resch, S.C Smith, Influence of humic substances on Co2+ sorption by a subsurface mineral separate and its mineralogic components Geochimica et Cosmochimica Acta. ,vol. 58, pp. 553- 566 ,(1994) , 10.1016/0016-7037(94)90488-X
Arnoldus W. P. Vermeer, Jenny K. McCulloch, Willem H. van Riemsdijk, Luuk K. Koopal, Metal Ion Adsorption to Complexes of Humic Acid and Metal Oxides: Deviations from the Additivity Rule Environmental Science & Technology. ,vol. 33, pp. 3892- 3897 ,(1999) , 10.1021/ES990260K
Peter Venema, Tjisse Hiemstra, Willem H. van Riemsduk, Comparison of Different Site Binding Models for Cation Sorption: Description of pH Dependency, Salt Dependency, and Cation–Proton Exchange joint international conference on information sciences. ,vol. 181, pp. 45- 59 ,(1996) , 10.1006/JCIS.1996.0355