Online TG-FTIR-MS analysis of the catalytic pyrolysis of polyethylene and polyvinyl chloride microplastics.

Liu, X; Tian, K; Chen, Z; Wei, W; Xu, B; Ni, B-J

Online TG-FTIR-MS analysis of the catalytic pyrolysis of polyethylene and polyvinyl chloride microplastics.

Liu, X Tian, K Chen, Z

Wei, W Xu, B Ni, B-J

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: J Hazard Mater, 2023, 441, pp. 129881
Issue Date:: 2023-01-05

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Field	Value	Language
dc.contributor.author	Liu, X
dc.contributor.author	Tian, K
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Wei, W
dc.contributor.author	Xu, B
dc.contributor.author	Ni, B-J
dc.date.accessioned	2023-03-23T02:15:17Z
dc.date.available	2022-08-28
dc.date.available	2023-03-23T02:15:17Z
dc.date.issued	2023-01-05
dc.identifier.citation	J Hazard Mater, 2023, 441, pp. 129881
dc.identifier.issn	0304-3894
dc.identifier.issn	1873-3336
dc.identifier.uri	http://hdl.handle.net/10453/168158
dc.description.abstract	Microplastics (MPs) are frequently detected in urban waters, which would pose a threat to human health through the food chain. Thus, efficient approaches to the elimination of MPs are urgently required. Pyrolysis is a powerful technique for the potential treatment of MPs. The online thermogravimetry-Fourier transform infrared reflection-Mass spectrometry (TG-FTIR-MS) is applied for tracking the pyrolysis process of representative polyethylene (PE) and polyvinyl chloride (PVC) MPs in urban waters, together with or without the FeAlOx catalyst. TG could quantitatively determine the decomposition behavior and kinetics of MPs while FTIR and MS spectra would be capable of characterizing the pyrolysis products. The results revealed that FeAlOx is an excellent carbon support, and the deposited carbon can be gasified to CO at higher pyrolysis temperatures. Moreover, more aromatic compounds were generated from the pyrolysis of PE MPs with the catalyzation of FeAlOx. Large quantities of benzene were also produced in the PVC MPs pyrolysis with or without FeAlOx. Also, FeAlOx largely decreased the concentrations of chlorine-containing compounds in the liquid products of PVC MPs pyrolysis. This study provides a efficient technique for the online observation of the MPs' catalytic pyrolysis process, which would guide future upcycling of MPs into value-added products.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	J Hazard Mater
dc.relation.isbasedon	10.1016/j.jhazmat.2022.129881
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	03 Chemical Sciences, 05 Environmental Sciences, 09 Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.subject.mesh	Benzene
dc.subject.mesh	Carbon
dc.subject.mesh	Chlorine
dc.subject.mesh	Humans
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Polyethylene
dc.subject.mesh	Polyvinyl Chloride
dc.subject.mesh	Pyrolysis
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared
dc.subject.mesh	Humans
dc.subject.mesh	Carbon
dc.subject.mesh	Chlorine
dc.subject.mesh	Polyethylene
dc.subject.mesh	Polyvinyl Chloride
dc.subject.mesh	Benzene
dc.subject.mesh	Plastics
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared
dc.subject.mesh	Pyrolysis
dc.subject.mesh	Microplastics
dc.subject.mesh	Benzene
dc.subject.mesh	Carbon
dc.subject.mesh	Chlorine
dc.subject.mesh	Humans
dc.subject.mesh	Microplastics
dc.subject.mesh	Plastics
dc.subject.mesh	Polyethylene
dc.subject.mesh	Polyvinyl Chloride
dc.subject.mesh	Pyrolysis
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared
dc.title	Online TG-FTIR-MS analysis of the catalytic pyrolysis of polyethylene and polyvinyl chloride microplastics.
dc.type	Journal Article
utslib.citation.volume	441
utslib.location.activity	Netherlands
utslib.for	03 Chemical Sciences
utslib.for	05 Environmental 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	closed_access	*
dc.date.updated	2023-03-23T02:15:12Z
pubs.publication-status	Published
pubs.volume	441

Abstract:

Microplastics (MPs) are frequently detected in urban waters, which would pose a threat to human health through the food chain. Thus, efficient approaches to the elimination of MPs are urgently required. Pyrolysis is a powerful technique for the potential treatment of MPs. The online thermogravimetry-Fourier transform infrared reflection-Mass spectrometry (TG-FTIR-MS) is applied for tracking the pyrolysis process of representative polyethylene (PE) and polyvinyl chloride (PVC) MPs in urban waters, together with or without the FeAlOx catalyst. TG could quantitatively determine the decomposition behavior and kinetics of MPs while FTIR and MS spectra would be capable of characterizing the pyrolysis products. The results revealed that FeAlOx is an excellent carbon support, and the deposited carbon can be gasified to CO at higher pyrolysis temperatures. Moreover, more aromatic compounds were generated from the pyrolysis of PE MPs with the catalyzation of FeAlOx. Large quantities of benzene were also produced in the PVC MPs pyrolysis with or without FeAlOx. Also, FeAlOx largely decreased the concentrations of chlorine-containing compounds in the liquid products of PVC MPs pyrolysis. This study provides a efficient technique for the online observation of the MPs' catalytic pyrolysis process, which would guide future upcycling of MPs into value-added products.

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http://hdl.handle.net/10453/168158