Publication detail

Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function

KUČERÍK, J. KISLINGER, J. MAJZLÍK, P. PEKAŘ, M.

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

Application of the Arrhenius equation as the temperature function in modeling of the degradation kinetics of humic substances brought a high positive Pearson correlation coefficient with the carbon content and a reasonable negative correlation with the oxygen content. Ratio C/H indicating the aromaticity degree of humic samples did not show any significant correlation. Relatively high value of correlation coefficients provided also O + N and ratios C/(O + N) and C/O, respectively. In contrast, H, N content and natural and heat generated free radical content and their ratio gave substantially lower correlation coefficients. The latter indicates that free radicals are probably not the main reason of the collapse of the secondary tructure of humic substances leading to their degradation.

Keywords

Humic substances; Isoconversional methods; Single step approximation; Correlation analysis; Thermal analysis.

Authors

KUČERÍK, J.; KISLINGER, J.; MAJZLÍK, P.; PEKAŘ, M.

RIV year

2009

Released

2. 10. 2009

Publisher

Springer

Location

Nizozemí

ISBN

1388-6150

Periodical

Journal of Thermal Analysis and Calorimetry

Year of study

Number

State

Hungary

Pages from

207

Pages to

214

Pages count

BibTex

@article{BUT48900,
  author="Jiří {Kučerík} and Jiří {Kislinger} and Petr {Majzlík} and Miloslav {Pekař}",
  title="Correlation of humic substances chemical properties and their thermo-oxidative degradation kinetics. Part 1. Arrhenius equation as the temperature function",
  journal="Journal of Thermal Analysis and Calorimetry",
  year="2009",
  volume="98",
  number="1",
  pages="207--214",
  issn="1388-6150"
}