SEM-EDS and DTA-TGA analysis of corn stalks used for the biosorption of copper ions from synthetic solutions

Gorgievski, Milan; Marković, Miljan; Grekulović, Vesna; Štrbac, Nada; Marković Jović, Marina; Zdravković, Milica; Božinović, Kristina

doi:10.5937/EcoTER26239G

Conference Object Open access M33

Rad M. Gorgievski_iz zbornika.pdf (2.36MB)

2026

Gorgievski, Milan
Marković, Miljan
Grekulović, Vesna
Štrbac, Nada
Marković Jović, Marina
Zdravković, Milica
Božinović, Kristina

University of Belgrade – Technical Faculty in Bor

Proceedings [Elektronski izvor] - 32nd International conference Ecological Truth & Environmental Research - EcoTER'26, Sokobanja, Serbia, 24-26 June 2026

239

242

English

M33 - Conference paper at an international conference, printed in full

This paper presents the results of SEM-EDS and DTA-TGA analysis of corn stalks before and after the biosorption of Cu2+ ions. Certain differences in the adsorbent structure and in the elemental analysis of the sample surface were observed. In micrographs of raw corn stalks, pores and cavities can be seen, which facilitate the penetration of the aqueous phase into the adsorbent structure, where copper ions are adsorbed at the internal active sites. After the biosorption of Cu2+ ions, a distinctly different surface morphology of corn stalks can be observed. The absence of cavities and channels is evident, with a compact and uniformly ordered lamellar structure. The EDS spectra of corn stalks, before and after copper ion biosorption, indicate the possible exchange of potassium, calcium, and magnesium with copper during the biosorption process. Based on the DTA-TGA analysis, the degradation of the corn stalk sample occurs in several stages.

The research presented in this paper was done with the financial support of the Ministry of Science, Technological Development and Innovation of the Republic of Serbia, within the funding of the scientific research work at the University of Belgrade – Technical Faculty in Bor, according to the contract with registration number 451-03-34/2026-03/200131.

copper ions, biosorption, corn stalks, SEM-EDS, DTA-TGA

DOI

10.5937/EcoTER26239G

ISBN

978-86-6305-171-3

URI

https://repozitorijum.tfbor.bg.ac.rs/handle/...

Scopus Web of Science OpenCitations OpenAlex

dc.creator	Gorgievski, Milan
dc.creator	Marković, Miljan
dc.creator	Grekulović, Vesna
dc.creator	Štrbac, Nada
dc.creator	Marković Jović, Marina
dc.creator	Zdravković, Milica
dc.creator	Božinović, Kristina
dc.contributor	Radojević, Ana
dc.title	SEM-EDS and DTA-TGA analysis of corn stalks used for the biosorption of copper ions from synthetic solutions
dc.date.issued	2026
dc.publisher	University of Belgrade – Technical Faculty in Bor
dc.identifier.doi	10.5937/EcoTER26239G
dc.identifier.isbn	978-86-6305-171-3
dc.type	conferenceObject
dc.source	Proceedings [Elektronski izvor] - 32nd International conference Ecological Truth & Environmental Research - EcoTER'26, Sokobanja, Serbia, 24-26 June 2026
dc.citation.spage	239
dc.citation.epage	242
dc.language.iso	en
dc.type.version	publishedVersion
dc.citation.rank	M33
dc.subject	copper ions
dc.subject	biosorption
dc.subject	corn stalks
dc.subject	SEM-EDS
dc.subject	DTA-TGA
dc.description.abstract	This paper presents the results of SEM-EDS and DTA-TGA analysis of corn stalks before and after the biosorption of Cu2+ ions. Certain differences in the adsorbent structure and in the elemental analysis of the sample surface were observed. In micrographs of raw corn stalks, pores and cavities can be seen, which facilitate the penetration of the aqueous phase into the adsorbent structure, where copper ions are adsorbed at the internal active sites. After the biosorption of Cu2+ ions, a distinctly different surface morphology of corn stalks can be observed. The absence of cavities and channels is evident, with a compact and uniformly ordered lamellar structure. The EDS spectra of corn stalks, before and after copper ion biosorption, indicate the possible exchange of potassium, calcium, and magnesium with copper during the biosorption process. Based on the DTA-TGA analysis, the degradation of the corn stalk sample occurs in several stages.
dc.relation	The research presented in this paper was done with the financial support of the Ministry of Science, Technological Development and Innovation of the Republic of Serbia, within the funding of the scientific research work at the University of Belgrade – Technical Faculty in Bor, according to the contract with registration number 451-03-34/2026-03/200131.
dc.rights.license	CC-BY-NC-ND
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.date.accessioned	2026-10-28T12:30:14Z
dc.description.provenance	Submitted by mgorgievski@tfbor.bg.ac.rs on 2026-10-21 08:03:05.391381, with 2 file(s). Approved by Милица Ницуловић (mniculovic@tfbor.bg.ac.rs) on 2026-10-28T12:30:14Z.
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/6148
dc.identifier.fulltext	https://repozitorijum.tfbor.bg.ac.rs/bitstream?id=efda7b47-dc8b-480c-a9fa-e563f65a1fe4


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