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Tofa, Tajkia SyeedKTH,Hållbar utveckling, miljövetenskap och teknik,Department of Civil and Environmental Engineering (CEE), Islamic University of Technology (IUT), Gazipur, Bangladesh
(author)
Visible light photocatalytic degradation of microplastic residues with zinc oxide nanorods
- Article/chapterEnglish2019
Publisher, publication year, extent ...
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2019-02-16
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Springer,2019
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-255138
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-255138URI
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https://doi.org/10.1007/s10311-019-00859-zDOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20190820
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Microplastics have recently become a major environmental issue due to their ubiquitous distribution, uncontrolled environmental occurrences, small sizes and long lifetimes. Actual remediation methods include filtration, incineration and advanced oxidation processes such as ozonation, but those methods require high energy or generate unwanted by-products. Here we tested the degradation of fragmented, low-density polyethylene (LDPE) microplastic residues, by visible light-induced heterogeneous photocatalysis activated by zinc oxide nanorods. The reaction was monitored using Fourier-transform infrared spectroscopy, dynamic mechanical analyser and optical imaging. Results show a 30% increase of the carbonyl index of residues, and an increase of brittleness accompanied by a large number of wrinkles, cracks and cavities on the surface. The degree of oxidation was directly proportional to the catalyst surface area. A mechanism for polyethylene degradation is proposed.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Laxman Kunjali, KarthikKTH,Material- och nanofysik(Swepub:kth)u1thkn5d
(author)
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Paul, Swaraj
(author)
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Dutta, Joydeep,Professor,1964-KTH,Tillämpad fysik(Swepub:kth)u1dajeit
(author)
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KTHHållbar utveckling, miljövetenskap och teknik
(creator_code:org_t)
Related titles
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In:Environmental Chemistry Letters: Springer17:3, s. 1341-13461610-36531610-3661
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