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Synthesis of feldspathoids and zeolite K-F from waste amber container glass

Synthesis of feldspathoids and zeolite K-F from waste amber container glass

Taylor, Jessica H., Elmes, Victoria K., Hurt, Andrew P. and Coleman, Nichola J. (2020) Synthesis of feldspathoids and zeolite K-F from waste amber container glass. Materials Chemistry and Physics, 246:122805. ISSN 0254-0584 (doi:https://doi.org/10.1016/j.matchemphys.2020.122805)

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26972 COLEMAN_Synthesis_Of_Feldspathoids_And_Zeolite_K-F_From_Waste_Amber_Container_Glass_(AAM)_2020.pdf - Accepted Version
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Abstract

The hydrothermal formation of mineral products from a mixture of amber container glass and aluminium waste (Al:Si = 1) in 4 M NaOH(aq) or 4 M KOH(aq) at 100 °C was monitored at 1, 3 and 10 days by X-ray diffraction analysis with Rietveld refinement, Fourier transform infrared spectroscopy and scanning electron microscopy with energy dispersive X-ray analysis. In NaOH(aq), at 1, 3 and 10 days, respectively, 48%, 55% and 63% of the glass crystallised to form hydroxysodalite (HS) and hydroxycancrinite (HC) with minor proportions of katoite and tobermorite. The partial successive transformation of HS to HC was also observed with time. The initial rates of dissolution of the glass and formation of the principal zeolite K-F and secondary katoite phases were considerably slower in KOH(aq); although, the subsequent development of the products was greater than that in NaOH(aq). The zeolite K-F product achieved only 5% crystallinity within the first day which then increased markedly to 60% and 78% at 3 and 10 days, respectively. Despite the incomplete conversion of amber glass into crystalline zeolitic phases, the uptake capacities of the 10-day feldspathoid and zeolite K-F products for Pb2+ (4.3 and 4.5 meq g-1, respectively) and Zn2+ (3.9 and 4.1 meq g-1, respectively) ions compared favourably with those of many other zeolites and waste-derived inorganic sorbents reported in the literature.

Item Type: Article
Uncontrolled Keywords: sodalite, cancrinite, zeolite k-f, ion-exchange, hydrothermal synthesis
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > School of Science (SCI)
Last Modified: 20 Feb 2020 10:46
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/26972

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