Naslov (eng)

Physico-chemical characterization of the corn silk by DTA-TGA, SEM-EDS and FTIR analysis

Autor

Gorgievski, Milan
Božić, Dragana
Marković, Miljan
Štrbac, Nada
Grekulović, Vesna
Božinović, Kristina
Zdravković, Milica

Opis (eng)

Abstract: In this paper, the results of the DTA-TGA, SEM-EDS, and FTIR analysis of the corn silk are presented. The DTA-TGA analysis shows that the decomposition of corn silk has several stages which are manifested with corresponding peaks on obtained DTA-TGA curves. SEM-EDS analysis was performed before and after the adsorption of copper ions. It has shown that untreated corn silk has a non-uniform structure, consisting of channels and cavities of irregular orientation, which facilitates the penetration of the water phase into the adsorbent structure, and incorporation of copper ions in the internal active sites. After the adsorption of Cu2+ ions, the structure becomes more compact, and uniform, as a result of the incorporation of copper ions into the molecular structure of the corn silk. FTIR analysis shows that ion exchange is not the dominant mechanism of binding copper ions to the active sites in the molecular structure of the corn silk, but also chemisorption and physical adsorption is present.

Jezik

engleski

Datum

2023

Licenca

© All rights reserved

Predmet

Key words: corn silk, characterization, DTA-TGA, SEM-EDS, FTIR, copper ions,.

Deo kolekcije (1)

o:179

Institut za rudarstvo i metalurgiju Bor