Structural, electrical and photocatalytic properties of iron-containing soda-lime aluminosilicate glass and glass-ceramics

Ali, Ahmed S.; Khan, Irfan; Zhang, Bofan; Razum, Marta; Pavić, Luka; Šantić, Ana; Bingham, Paul A; Nomura, Kiyoshi; Kubuki, Shiro (2021) Structural, electrical and photocatalytic properties of iron-containing soda-lime aluminosilicate glass and glass-ceramics. Journal of Non-Crystalline Solids, 553 . ISSN 0022-3093

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Abstract

The structure and electrical conductivity of iron-containing soda-lime alumino-silicate glass-ceramic system were investigated and used for the degradation of methylene blue (MB) solution. Mössbauer isomer shifts were decreased from 0.26 and 0.25 to 0.14 and 0.12 mm s-1 with increasing basicity from 0.75 to 1.50 revealing the cleavage in network structure due to the incorporation of Ca2+ ions. By increasing basicity from 0.75 to 1.50, the electrical conductivity was increased from (2.2 × 10-12 to 2.2 × 10-8 Ω-1 cm-1). More increase in basicity to 1.75 decreased the conductivity to 6.5× 10-9 Ω-1 cm-1. The electrical conductivity is ionic in nature and was correlated to the microstructure of the samples. The first-order rate constant (k) for the MB degradation was enhanced from 0.09 × 10-1 to 1.15 × 10−1 min−1 with increasing basicity from 0.75 to 1.50, having a good correlation with microstructure and electrical conductivity.

Item Type:	Article
Uncontrolled Keywords:	Soda-lime alumino-silicate glass-ceramics; Iron oxide; Mössbauer spectroscopy; Impedance spectroscopy; Photo-Fenton<; Combustible waste slag
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry
Depositing User:	Luka Pavić
Date Deposited:	14 Jan 2026 09:30
URI:	http://fulir.irb.hr/id/eprint/10706
DOI:	10.1016/j.jnoncrysol.2020.120510

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