Magnetic Zeolite: Synthesis and Copper Adsorption Followed by Magnetic Separation from Treated Water

Sofi Buzukashvili; Weiqing Hu; Rob Sommerville; Oliver Brooks; Ozan Kökkiliç; Neil Rowson; Philippe Ouzilleau; Kristian E. Waters

doi:10.3390/cryst13091369

Magnetic Zeolite: Synthesis and Copper Adsorption Followed by Magnetic Separation from Treated Water

Sofi Buzukashvili, Weiqing Hu, Rob Sommerville, Oliver Brooks, Ozan Kökkiliç, Neil Rowson, Philippe Ouzilleau, Kristian E. Waters^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Zeolites are widely used in diverse applications, including the removal of heavy metals from wastewater. However, separating fine-sized zeolite particles from treated water is often a challenge. In this work, a novel method utilizing a colloidal polyvinyl alcohol (PVA) solution to bind iron oxide nanoparticles to a Linde Type A (LTA) zeolite was used to synthesize magnetic zeolite. Different zeolite–iron oxide nanoparticle loadings (10:1, 10:0.5, and 10:0.1) were used in batch adsorption experiments to investigate adsorption capacities and kinetics for Cu removal from an aqueous solution. The results showed that the magnetic zeolite maintained much of its adsorbent properties while facilitating a simplified process design. Thus, the adsorption capacity of pure LTA zeolite was found to be 262 mg/g for magnetic zeolite, with a 10:1 ratio—151 mg/g; 10:0.5—154 mg/g; and 10:0.1—170 mg/g. Magnetic separation was subsequently employed to remove the magnetic zeolite from the treated solution.

Original language	English
Article number	1369
Number of pages	19
Journal	Crystals
Volume	13
Issue number	9
DOIs	https://doi.org/10.3390/cryst13091369
Publication status	Published - 12 Sept 2023

Bibliographical note

Funding:
The authors are grateful for the financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC), Teck Resources Limited, COREM, SGS Canada Inc., and Flottec, under the Collaborative Research and Development Grants Program (grant number CRDPJ-531957-18). The McGill Engineering Doctoral Award (MEDA) from the Faculty of Engineering at McGill University is also acknowledged for a scholarship awarded to S. Buzukashvili.

Keywords

magnetic zeolites
Magnetic composites
magnetic separation
zeolites
heavy metals

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abstract = "Zeolites are widely used in diverse applications, including the removal of heavy metals from wastewater. However, separating fine-sized zeolite particles from treated water is often a challenge. In this work, a novel method utilizing a colloidal polyvinyl alcohol (PVA) solution to bind iron oxide nanoparticles to a Linde Type A (LTA) zeolite was used to synthesize magnetic zeolite. Different zeolite–iron oxide nanoparticle loadings (10:1, 10:0.5, and 10:0.1) were used in batch adsorption experiments to investigate adsorption capacities and kinetics for Cu removal from an aqueous solution. The results showed that the magnetic zeolite maintained much of its adsorbent properties while facilitating a simplified process design. Thus, the adsorption capacity of pure LTA zeolite was found to be 262 mg/g for magnetic zeolite, with a 10:1 ratio—151 mg/g; 10:0.5—154 mg/g; and 10:0.1—170 mg/g. Magnetic separation was subsequently employed to remove the magnetic zeolite from the treated solution.",

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note = "Funding: The authors are grateful for the financial support from the Natural Sciences and Engineering Research Council of Canada (NSERC), Teck Resources Limited, COREM, SGS Canada Inc., and Flottec, under the Collaborative Research and Development Grants Program (grant number CRDPJ-531957-18). The McGill Engineering Doctoral Award (MEDA) from the Faculty of Engineering at McGill University is also acknowledged for a scholarship awarded to S. Buzukashvili. ",

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AU - Brooks, Oliver

AU - Kökkiliç, Ozan

AU - Rowson, Neil

AU - Ouzilleau, Philippe

AU - Waters, Kristian E.

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N2 - Zeolites are widely used in diverse applications, including the removal of heavy metals from wastewater. However, separating fine-sized zeolite particles from treated water is often a challenge. In this work, a novel method utilizing a colloidal polyvinyl alcohol (PVA) solution to bind iron oxide nanoparticles to a Linde Type A (LTA) zeolite was used to synthesize magnetic zeolite. Different zeolite–iron oxide nanoparticle loadings (10:1, 10:0.5, and 10:0.1) were used in batch adsorption experiments to investigate adsorption capacities and kinetics for Cu removal from an aqueous solution. The results showed that the magnetic zeolite maintained much of its adsorbent properties while facilitating a simplified process design. Thus, the adsorption capacity of pure LTA zeolite was found to be 262 mg/g for magnetic zeolite, with a 10:1 ratio—151 mg/g; 10:0.5—154 mg/g; and 10:0.1—170 mg/g. Magnetic separation was subsequently employed to remove the magnetic zeolite from the treated solution.

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Magnetic Zeolite: Synthesis and Copper Adsorption Followed by Magnetic Separation from Treated Water

Abstract

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Keywords

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