Characterization and kinetics analysis of the thermal decomposition of the humic substance from hazelnut husk.
Hazelnut husk
TG-DTG/DSC analysis
humic substance
kinetic analysis
thermal decomposition
Journal
Turkish journal of chemistry
ISSN: 1300-0527
Titre abrégé: Turk J Chem
Pays: Turkey
ID NLM: 101259104
Informations de publication
Date de publication:
2020
2020
Historique:
received:
22
04
2020
accepted:
10
08
2020
entrez:
25
1
2021
pubmed:
26
1
2021
medline:
26
1
2021
Statut:
epublish
Résumé
A humic substance was obtained from hazelnut husk using an alkali extraction. The chemical and morphological structure of the humic matter was characterized via elemental analysis, Fourier transform infrared spectrometry (FTIR), nuclear magnetic resonance, Brunauer-Emmet-Teller (BET) analysis, scanning electron microscopy (SEM), and thermogravimetric-FTIR (TG-FTIR). In addition, thermal analysis measurements TG analysis-differential thermogravimetry/differential scanning calorimetry (TGA-DTG/DSC) were performed under dynamic air conditions to better determine the origin, physical and chemical structure, and decomposition process of the humic matter. The Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) methods were used to calculate the kinetic parameters of the high-temperature decomposition process. It was observed that the activation energy values were almost constant at certain conversion and temperature intervals. In addition, the structure of the humic substance at different temperatures was also investigated via FTIR analysis. It was found that the obtained humic substance had a very stable structure and decomposed at a high temperature. The stability of the humic matter can be a useful tool in the environmental quality research of soil.
Identifiants
pubmed: 33488246
doi: 10.3906/kim-2004-62
pmc: PMC7763116
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1483-1494Informations de copyright
Copyright © 2020 The Author(s).
Déclaration de conflit d'intérêts
CONFLICT OF INTEREST: none declared
Références
Biodegradation. 2007 Jun;18(3):295-301
pubmed: 16909328
Bioresour Technol. 2014 Sep;168:229-34
pubmed: 24951275
PLoS One. 2017 Dec 14;12(12):e0189653
pubmed: 29240819
Bioresour Technol. 2001 Jul;78(3):239-42
pubmed: 11341682
Nanoscale Res Lett. 2018 Apr 27;13(1):129
pubmed: 29704073
Waste Manag. 2019 Nov;99:1-11
pubmed: 31454594