Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 110: Issue 1
Hydration of humic and fulvic acids studied by DSC
Authors:
Jiří Kučerík Department of Environmental and Soil Chemistry, Institute of Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, 76829, Landau, Germany
Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic

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Petra Bursáková Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic

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Alena Průšová Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic

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Lucie Grebíková Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland

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Gabriele Ellen Schaumann Department of Environmental and Soil Chemistry, Institute of Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, 76829, Landau, Germany

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Pages:
451–459
Online Publication Date:
20 Jan 2012
Publication Date:
01 Oct 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-011-2178-1
Keywords:
Humic and fulvic acids; Hydration; Water; Differential scanning calorimetry; Humification
Restricted access

Abstract

Qualitative and quantitative aspects of hydration of four humic acids (HA) and three fulvic acids (FA) originating from different sources were investigated. DSC experiments at subambient temperatures were carried out in order to monitor differences in ice behavior originating from freezable water surrounding humic molecules. It was found that kinetic effects play a significant role in hydration processes of both HA and FA. In fact, the hydration took part over 21 days which was detected as a progressive decrease in ice melting enthalpy. Simultaneously, the peak shapes and positions changed indicating structural changes in the physical structure of the humic substances. In case of FA, the dependency of melting enthalpy on water concentration showed a linear trend resembling a complete hydration previously observed for water-soluble hydrophilic polymers. In contrast, the melting enthalpy of some HA increased in a step-like way with increasing water content, suggesting preservation of original hydrophobic scaffold during the hydration. The differences between the rather young FA and the rather old HA lead to the conclusion that water can play a significant role in processes of humification. We assume that separation of hydrophobic and hydrophilic domains and thus increase in nanoscale heterogeneity represents an important physical contribution to the overall humification process. It was also demonstrated that the higher content of oxygen in humic molecules is not the only indicator of higher water holding capacity. Instead the porosity of humic matrix seems to contribute as additional parameter into these processes.

  • 1. Sutton, R, Sposito, G 2005 Molecular structure in soil humic substances? The new view. Environ Sci Technol 39:9009–9015 .

  • 2. Stevenson, FJ 1994 Humus chemistry: genesis, composition, reactions 2 Wiley New York.

  • 3. Schaumann, GE, Hurrass, J, Műller, M, Rotard, W 2004 Swelling of organic matter in soil and peat samples: Insights from proton relaxation, water absorption and PAH extraction EA Ghabbour G Davies eds. Humic substances: nature's most versatile materials Taylor and Francis New York 101–117.

    • Search Google Scholar
    • Export Citation

  • 4. Vaxelaire, J, Cézac, P 2004 Moisture distribution in activated sludges: a review. Water Res 38:2215–2230 .

  • 5. Vesilind, PA 1994 The role of water in sludge dewatering. Water Environ Res 66:4–11 .

  • 6. Tsang, KR, Vesilind, PA 1990 Moisture distribution in sludges. Water Sci Technol 22:135–142.

  • 7. Vesilind, PA, Hsu, CC 1997 Limits of sludge dewaterability. Water Sci Technol 36:87–91.

  • 8. Liu, J, Cowman, MK 2000 Thermal analysis of semi-dilute hyaluronan solutions. J Therm Anal Cal 59:547–557 .

  • 9. Prawitwong, P, Takigami, S, Phillips, GO 2007 Phase transition behavior of sorbed water in Konjac mannan. Food Hydrocoll 21:1368–1373 .

  • 10. Hurrass, J, Schaumann, GE 2007 Hydration kinetics of wettable and water-repellent soils. Soil Sci Soc Am J 71:280–288 .

  • 11. Schaumann, GE 2005 Matrix relaxation and change of water state during hydration of peat. Colloid Surf A 265:163–170 .

  • 12. Jaeger, F, Shchegolikhina, A H Van As Schaumann, GE 2010 Proton NMR relaxometry as a useful tool to evaluate swelling processes of peat soils. Open Magn Reson J 3:27–45 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 13. Graber, ER, Borisover, MD 1998 Hydration-facilitated sorption of specifically interacting organic compounds by model soil organic matter. Environ Sci Technol 32:258–263 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 14. Borisover, M, Reddy, M, Graber, ER 2001 Solvation effect on organic compound interactions in soil organic matter. Environ Sci Technol 35:2518–2524 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 15. Borisover, M, Graber, ER 2002 Relationship between strength of organic sorbate interactions in NOM and hydration effect on sorption. Environ Sci Technol 36:4570–4577 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 16. Graber, ER, Tsechansky, L, Borisover, M 2007 Hydration-assisted sorption of a probe organic compound at different peat hydration levels: the link solvation model. Environ Sci Technol 41:547–554 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 17. Schaumann, GE, Bertmer, M 2008 Do water molecules bridge soil organic matter molecule segments?. Eur J Soil Sci 59:423–429 .

  • 18. Schaumann, GE, Leboeuf, EJ 2005 Glass transitions in peat: their relevance and the impact of water. Environ Sci Technol 39:800–806 .

  • 19. Yoshida, H, Hakateyama, T, Hakateyama, H 1993 Characterization of water in polysaccharide hydrogels by DSC. J Therm Anal 40:483–489 .

  • 20. Takigami, S, Takigami, M, Phillips, GO 1993 Hydration characteristics of the cross-linked hyaluronan derivative hylan. Carbohydr Polym 22:153–160 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 21. Hakateyama, H, Hakateyama, T 1998 Interaction between water and hydrophilic polymers. Thermochim Acta 308:3–22 .

  • 22. Průšová, A, Šmejkalová, D, Chytil, M, Velebný, V, Kučerík, J 2010 An alternative DSC approach to study hydration of hyaluronan. Carbohydr Polym 82:498–503 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 23. Kučerík, J, Čechlovská, H, Bursáková, P, Pekař, M 2009 The thermodynamic stability and molecular feature of lignite humic acids aggregates studied by high resolution ultrasonic spectroscopy. J Therm Anal Cal 96:637–643 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 24. Uchida, T, Nagayama, M, Shibayama, T, Gohara, K 2007 Morphological investigation of disaccharide molecules for growth inhibition of ice crystals. J Cryst Growth 299:125–135 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 25. Fernandez, JM, Plante, AF, Leifeld, J, Rasmussen, C 2011 Methodological considerations for using thermal analysis in the characterization of soil organic matter. J Therm Anal Cal 104:289–298 .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 26. Siewert C , Demyan MS, Kučerík J. Interrelation between soil respiration and its thermal stability. J Therm Anal Cal. 2010. doi: .

  • 27. Aquino A , Tunega D, Pasalic H, Schaumann GE. Molecular dynamics simulations of water molecule-bridges in polar domains of humic acids. Environ Sci Technol. 2011. doi: .

    • Crossref
    • Search Google Scholar
    • Export Citation

  • 28. Piccolo, A 2001 The supramolecular structure of humic substances. Soil Sci 166:810–832 .

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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