Preparation of effective lithium-ion sieve from sludge-generated TiO<inf>2</inf>

Hossain, SM; Ibrahim, I; Choo, Y; Razmjou, A; Naidu, G; Tijing, L; Kim, JH; Shon, HK

Preparation of effective lithium-ion sieve from sludge-generated TiO<inf>2</inf>

Hossain, SM Ibrahim, I Choo, Y Razmjou, A Naidu, G Tijing, L

Kim, JH Shon, HK

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Desalination, 2022, 525, pp. 115491
Issue Date:: 2022-03-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted ManuscriptAdobe PDF (1.63 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Hossain, SM
dc.contributor.author	Ibrahim, I
dc.contributor.author	Choo, Y
dc.contributor.author	Razmjou, A
dc.contributor.author	Naidu, G
dc.contributor.author	Tijing, L https://orcid.org/0000-0001-9398-6355
dc.contributor.author	Kim, JH
dc.contributor.author	Shon, HK
dc.date.accessioned	2022-01-25T02:16:24Z
dc.date.available	2022-01-25T02:16:24Z
dc.date.issued	2022-03-01
dc.identifier.citation	Desalination, 2022, 525, pp. 115491
dc.identifier.issn	0011-9164
dc.identifier.uri	http://hdl.handle.net/10453/153547
dc.description.abstract	A potential adsorbent for Li+ extraction from liquid resources is titanium-type lithium-ion sieves (LISs) because of their structural stability and high adsorption capacity. However, the adsorption efficiency and recycling stability of LISs produced with various TiO2 precursors vary significantly. Additionally, traditional TiO2 is often produced using chemical-intensive methods, resulting in large amounts of effluent containing strong acids and high concentrations of chloride/sulfate ions, posing a threat to the environment. Hence, in this study, the LIS precursors, Li2TiO3, were synthesized utilizing novel environment-friendly anatase titania made from flocculated sludges of synthetic secondary sewage effluent (S-LTO) and dye wastewater (D-LTO). The physicochemical characteristics and adsorption capacities of the synthesized LISs were then investigated. The results indicated that sludge-generated LISs could be effectively produced and had a high Li+ adsorption capacity of 35.43 mg/g for S-LTO and 34.97 mg/g for D-LTO. For the synthesized LISs, the adsorption kinetics and isotherms verified a fixed energy-based monolayer chemisorption. Furthermore, the H2TiO3 generated from sludge was extremely stable after acid pickling, reusable (4 regeneration cycles exhibited minimal performance degradation), and highly selective to Li+ in an aqueous medium, suggesting enormous industrial potentials such as seawater and brine for aqueous Li+ recovery.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	Qatar National Research FundNPRP12S-0227-190166
dc.relation.ispartof	Desalination
dc.relation.isbasedon	10.1016/j.desal.2021.115491
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.title	Preparation of effective lithium-ion sieve from sludge-generated TiO<inf>2</inf>
dc.type	Journal Article
utslib.citation.volume	525
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
dc.date.updated	2022-01-25T02:16:23Z
pubs.publication-status	Accepted
pubs.volume	525

Abstract:

A potential adsorbent for Li+ extraction from liquid resources is titanium-type lithium-ion sieves (LISs) because of their structural stability and high adsorption capacity. However, the adsorption efficiency and recycling stability of LISs produced with various TiO2 precursors vary significantly. Additionally, traditional TiO2 is often produced using chemical-intensive methods, resulting in large amounts of effluent containing strong acids and high concentrations of chloride/sulfate ions, posing a threat to the environment. Hence, in this study, the LIS precursors, Li2TiO3, were synthesized utilizing novel environment-friendly anatase titania made from flocculated sludges of synthetic secondary sewage effluent (S-LTO) and dye wastewater (D-LTO). The physicochemical characteristics and adsorption capacities of the synthesized LISs were then investigated. The results indicated that sludge-generated LISs could be effectively produced and had a high Li+ adsorption capacity of 35.43 mg/g for S-LTO and 34.97 mg/g for D-LTO. For the synthesized LISs, the adsorption kinetics and isotherms verified a fixed energy-based monolayer chemisorption. Furthermore, the H2TiO3 generated from sludge was extremely stable after acid pickling, reusable (4 regeneration cycles exhibited minimal performance degradation), and highly selective to Li+ in an aqueous medium, suggesting enormous industrial potentials such as seawater and brine for aqueous Li+ recovery.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/153547