eprintid: 16703
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/67/03
datestamp: 2023-12-19 03:23:13
lastmod: 2023-12-19 03:23:13
status_changed: 2023-12-19 03:06:44
type: article
metadata_visibility: show
creators_name: Lam, S.-M.
creators_name: Chew, K.-C.
creators_name: Sin, J.-C.
creators_name: Zeng, H.
creators_name: Lin, H.
creators_name: Li, H.
creators_name: Lim, J.W.
creators_name: Mohamed, A.R.
title: Ameliorated photodegradation performance of polyethylene and polystyrene films incorporated with ZnO-PVP catalyst
ispublished: pub
keywords: Catalysts; Composite films; II-VI semiconductors; Particle size; Particle size analysis; Plastic films; Polyethylenes; Polymer films; Textures; Thermodynamic stability; Waste disposal; Zinc oxide, Performance; Photo degradation; Plastic-film; Plastics waste; Polyethylene film; Polystyrene films; Polyvinylpyrrolidones; PVP; Sunlight; ]+ catalyst, Polystyrenes
note: cited By 28
abstract: Ubiquitous occurrence and indiscriminate disposal of plastic waste have urged us to search a new and useful strategy to battle the menace of plastic contamination. Herein, we demonstrated an effective way to degrade two common plastic films, namely polyethylene (PE) and polystyrene (PS) through ZnO-modified by polyvinylpyrrolidone (ZnO-PVP) under direct sunlight. Incorporation of PVP can effectively reduce the particle size and prolong the optical response range in the solar spectrum of the developed ZnO samples. As compared to unmodified ZnO and virgin films, ZnO-PVP catalysts exhibited prominent solid phase photodegradation of PE and PS. High surface area of ZnO-PVP can improve the interaction with plastic film texture and thereby resulted in the boosted charge mobility for the photodegradation of polymeric substances. The surface textures of polymer films were efficiently deteriorated over ZnO-PVP under sunlight irradiation. These findings were corroborated with the production of carbonyl, peroxides and vinyl unsaturated groups as monitored by infrared spectrometer. The mechanical strength and thermal stability of the composite films also restrained upon sunlight exposure. The holes and hydroxyl radicals as core species were produced by ZnO-PVP during the course of plastic photodegradation. Based on these analyses, a conceivable mechanism was postulated and was in well accordance with the obtained data. © 2022 Elsevier Ltd
date: 2022
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128255858&doi=10.1016%2fj.jece.2022.107594&partnerID=40&md5=7ca38df007b4ada0826574a69f363366
id_number: 10.1016/j.jece.2022.107594
full_text_status: none
publication: Journal of Environmental Chemical Engineering
volume: 10
number: 3
refereed: TRUE
issn: 22133437
citation:   Lam, S.-M. and Chew, K.-C. and Sin, J.-C. and Zeng, H. and Lin, H. and Li, H. and Lim, J.W. and Mohamed, A.R.  (2022) Ameliorated photodegradation performance of polyethylene and polystyrene films incorporated with ZnO-PVP catalyst.  Journal of Environmental Chemical Engineering, 10 (3).   ISSN 22133437