Adsorbents from rice husk and shrimp shell for effective removal of heavy metals and reactive dyes in water.

Mondal, MIH; Chandra Chakraborty, S; Rahman, MS; Marjuban, SMH; Ahmed, F; Zhou, JL; Ahmed, MB; Zargar, M

Adsorbents from rice husk and shrimp shell for effective removal of heavy metals and reactive dyes in water.

Mondal, MIH Chandra Chakraborty, S Rahman, MS Marjuban, SMH Ahmed, F Zhou, JL Ahmed, MB Zargar, M

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Environ Pollut, 2024, 346, pp. 123637
Issue Date:: 2024-04-01

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Field	Value	Language
dc.contributor.author	Mondal, MIH
dc.contributor.author	Chandra Chakraborty, S
dc.contributor.author	Rahman, MS
dc.contributor.author	Marjuban, SMH
dc.contributor.author	Ahmed, F
dc.contributor.author	Zhou, JL
dc.contributor.author	Ahmed, MB
dc.contributor.author	Zargar, M
dc.date.accessioned	2025-03-11T02:59:34Z
dc.date.available	2024-02-21
dc.date.available	2025-03-11T02:59:34Z
dc.date.issued	2024-04-01
dc.identifier.citation	Environ Pollut, 2024, 346, pp. 123637
dc.identifier.issn	0269-7491
dc.identifier.issn	1873-6424
dc.identifier.uri	http://hdl.handle.net/10453/185656
dc.description.abstract	Widespread contamination by heavy metals (HMs) and dyes poses a major health risk to people and ecosystems requiring effective treatment. In this work, rice husk (RH) and shrimp shells were extracted to obtain amorphous silica and chitosan, respectively, which were utilized to produce nano-chitosan-coated silica (NCCS). To ensure the stability of the nanoparticles, silica was freeze-dried after being coated with nano-chitosan. Functional groups (-NH2, -OH, P]O) from chitosan nanoparticles (CNPs) were introduced to the surface of silica during this process. Dyes such as brilliant green (BG), methylene blue (MB) and reactive brown (RB) as well as HMs (Cr6+, Pb2+, Cd2+, Ni2+) were removed by adsorbents. CNPs showed the highest adsorption capacity for RB (59.52 mg/g) among dyes and Cr6+ (42.55 mg/g) among HMs. CNPs showed the highest adsorption capacity for HMs among different adsorbents. Although NCCS and CNPs showed similar adsorption capabilities for HMs and dyes, NCCS showed the best stability. The adsorption performance decreased as RB > Cr6+ > MB > BG > Pb2+ > Cd2+ > Ni2+. The adsorption reactions followed both pseudo-first-order and second-order kinetics, and was spontaneous from thermodynamic analysis. In summary, the waste-derived adsorbents demonstrated excellent potential for removing HMs and dyes from water, while supporting effective management solid waste.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Environ Pollut
dc.relation.isbasedon	10.1016/j.envpol.2024.123637
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Humans
dc.subject.mesh	Chitosan
dc.subject.mesh	Cadmium
dc.subject.mesh	Oryza
dc.subject.mesh	Coloring Agents
dc.subject.mesh	Water
dc.subject.mesh	Ecosystem
dc.subject.mesh	Lead
dc.subject.mesh	Metals, Heavy
dc.subject.mesh	Silicon Dioxide
dc.subject.mesh	Adsorption
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Kinetics
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Humans
dc.subject.mesh	Metals, Heavy
dc.subject.mesh	Cadmium
dc.subject.mesh	Lead
dc.subject.mesh	Water
dc.subject.mesh	Silicon Dioxide
dc.subject.mesh	Chitosan
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Ecosystem
dc.subject.mesh	Kinetics
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Coloring Agents
dc.subject.mesh	Oryza
dc.subject.mesh	Humans
dc.subject.mesh	Chitosan
dc.subject.mesh	Cadmium
dc.subject.mesh	Oryza
dc.subject.mesh	Coloring Agents
dc.subject.mesh	Water
dc.subject.mesh	Ecosystem
dc.subject.mesh	Lead
dc.subject.mesh	Metals, Heavy
dc.subject.mesh	Silicon Dioxide
dc.subject.mesh	Adsorption
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Kinetics
dc.subject.mesh	Hydrogen-Ion Concentration
dc.title	Adsorbents from rice husk and shrimp shell for effective removal of heavy metals and reactive dyes in water.
dc.type	Journal Article
utslib.citation.volume	346
utslib.location.activity	England
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Technology in Water and Wastewater (CTWW)
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Green Technology (CGT)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-03-11T02:59:31Z
pubs.publication-status	Published
pubs.volume	346

Abstract:

Widespread contamination by heavy metals (HMs) and dyes poses a major health risk to people and ecosystems requiring effective treatment. In this work, rice husk (RH) and shrimp shells were extracted to obtain amorphous silica and chitosan, respectively, which were utilized to produce nano-chitosan-coated silica (NCCS). To ensure the stability of the nanoparticles, silica was freeze-dried after being coated with nano-chitosan. Functional groups (-NH2, -OH, P]O) from chitosan nanoparticles (CNPs) were introduced to the surface of silica during this process. Dyes such as brilliant green (BG), methylene blue (MB) and reactive brown (RB) as well as HMs (Cr6+, Pb2+, Cd2+, Ni2+) were removed by adsorbents. CNPs showed the highest adsorption capacity for RB (59.52 mg/g) among dyes and Cr6+ (42.55 mg/g) among HMs. CNPs showed the highest adsorption capacity for HMs among different adsorbents. Although NCCS and CNPs showed similar adsorption capabilities for HMs and dyes, NCCS showed the best stability. The adsorption performance decreased as RB > Cr6+ > MB > BG > Pb2+ > Cd2+ > Ni2+. The adsorption reactions followed both pseudo-first-order and second-order kinetics, and was spontaneous from thermodynamic analysis. In summary, the waste-derived adsorbents demonstrated excellent potential for removing HMs and dyes from water, while supporting effective management solid waste.

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http://hdl.handle.net/10453/185656