One-step fabrication of novel porous and permeable self-supporting zeolite block from fly ash

Liu, Yi and Yan, Chunjie and Zhang, Zuhua and Li, Lingyao and Wang, Hongquan and Pu, Song (2017) One-step fabrication of novel porous and permeable self-supporting zeolite block from fly ash. Materials Letters, 196. pp. 328-331. ISSN 0167-577X


Abstract

Zeolite blocks, monoliths or membranes are normally synthesized in the presence of massive solvents via hydrothermal routes. Here we demonstrate an environmental friendly process of fabricating porous and permeable zeolite block from industrial by-product fly ash by adding oleic acid and aluminum powder in geopolymer block manufacture process. The resultant product is a foamed faujasite block with highly interconnected pores, which does not need further hydrothermal processing. SEM images and XRD patterns confirms the high crystallinity of the faujasite block. The compressive strength of the faujasite blocks is 3.07 MPa at the dry bulk density of 0.88 g/cm3, and its total porosity is up to 57.69 vol%. The permeability of the fajasite block to water coefficient is 0.15 cm/s with BET surface area of 44.73 m2/g, which is similar to those zeolites synthesized using traditional hydrothermal method.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 31 Jan 2020 06:43
Last Modified: 13 Feb 2020 22:56
Uncontrolled Keywords: Zeolite block; Faujasite; Porous materials; Permeable; Fly ash; Geopolymer
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090502 Construction Engineering
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials
Identification Number or DOI: 10.1016/j.matlet.2017.03.097
URI: http://eprints.usq.edu.au/id/eprint/37709

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