Buckwheat husk biochar: Preparation and study of acid-base and ion-exchange properties
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Autor:in (Körperschaft)
Publikationsdatum
2024
Typ der Arbeit
Studiengang
Sammlung
Typ
01A - Beitrag in wissenschaftlicher Zeitschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Journal of Chemistry and Technologies
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
32
Ausgabe / Nummer
3
Seiten / Dauer
694-705
Patentnummer
Verlag / Herausgebende Institution
Oles Honchar Dnipropetrovsk National University
Verlagsort / Veranstaltungsort
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Ukraine is one of the world's leading producers of buckwheat grain, so it is very important to address the issue of including its processing waste in the production cycle. Buckwheat husk is a promising raw material for biochar production. The aim of the study is to obtain biochar as an additive during food waste composting and to characterise its acid-base and ion-exchange properties. The nature of the potentiometric titration curves of biochar is determined by the additive contribution of all ionised groups of biochar and allows us to classify the studied products as ion exchangers of polyfunctional type. It has been shown that, possessing the properties of ampholytes, biochars in the composting process not only act as acceptors of metal ions, but also function as a soft regulator of pH. The number of groups with the ability to exchange anions ranges from 0.1 (biochar-500) to 1.2 (biochar-MX). The groups with the highest pKa values in the range of biochars studied were found in biochar-500 (pK 7.5), biochar-MX (pK – 7.3) and biochar-300 (pKb 7.0). Other anion-exchange groups have pKb from 4.9 to 6.3 meq/g, which characterises them as weakly basic
Schlagwörter
Acid-base properties, Biochar, Buckwheat husk, Ion exchange properties, Microwave irradiation, Pyrolysis, Thermochemical conversion
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
2663-2942
2663-2934
2663-2934
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Peer-Review der ganzen Publikation
Open Access-Status
Gold
Lizenz
Zitation
Tkachenko, A. O., Sahdieieva, O. A., Krusir, G. V., Malovanyy, M. S., & Vitiuk, A. V. (2024). Buckwheat husk biochar: Preparation and study of acid-base and ion-exchange properties. Journal of Chemistry and Technologies, 32(3), 694–705. https://doi.org/10.15421/jchemtech.v32i3.306261