Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants
This paper reports on the photocatalytic activity showed by nanocomposites of TiO2 with low density polyethylene (LDPE) and high density polyethylene (HDPE) (10, 20 wt%) for the degradation of methyl orange in aqueous medium under visible light irradiation. TiO2 was synthetized by sol-gel process, a...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2017-11-01
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| Series: | eXPRESS Polymer Letters |
| Subjects: | |
| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0008272&mi=cd |
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| author | M. Romero-Saez L. Y. Jaramillo R. Saravanan N. Benito E. Pabon E. Mosquera F. Gracia |
| author_facet | M. Romero-Saez L. Y. Jaramillo R. Saravanan N. Benito E. Pabon E. Mosquera F. Gracia |
| author_sort | M. Romero-Saez |
| collection | DOAJ |
| description | This paper reports on the photocatalytic activity showed by nanocomposites of TiO2 with low density polyethylene (LDPE) and high density polyethylene (HDPE) (10, 20 wt%) for the degradation of methyl orange in aqueous medium under visible light irradiation. TiO2 was synthetized by sol-gel process, and the polymers were incorporated by impregnation. Both the pure TiO2 and the nanocomposites were characterized using different physico-chemical techniques including specific surface area analysis, X-ray diffraction analysis, transmission electron microscopy, ultraviolet-visible and photoluminescence spectroscopy, and X-ray photoelectron spectroscopy. All the prepared nanocomposites showed an absorption edge in the visible region. TiO2(90)/LDPE photocatalyst showed the best degradation efficiency after 180 minutes of reaction, without notorious decrease of degradation efficiency after three consecutive uses. Photoluminescence and X-ray photoelectron spectroscopy analyses suggested the presence of vacancies in the TiO2 structure promoted by a Ti–O–C interaction being responsible for the photocatalytic activity enhancement under visible light irradiation. |
| format | Article |
| id | doaj-art-ffad808422ba4fc0a084747005e46f4b |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2017-11-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-ffad808422ba4fc0a084747005e46f4b2025-08-20T02:49:49ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2017-11-01111189990910.3144/expresspolymlett.2017.86Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutantsM. Romero-SaezL. Y. JaramilloR. SaravananN. BenitoE. PabonE. MosqueraF. GraciaThis paper reports on the photocatalytic activity showed by nanocomposites of TiO2 with low density polyethylene (LDPE) and high density polyethylene (HDPE) (10, 20 wt%) for the degradation of methyl orange in aqueous medium under visible light irradiation. TiO2 was synthetized by sol-gel process, and the polymers were incorporated by impregnation. Both the pure TiO2 and the nanocomposites were characterized using different physico-chemical techniques including specific surface area analysis, X-ray diffraction analysis, transmission electron microscopy, ultraviolet-visible and photoluminescence spectroscopy, and X-ray photoelectron spectroscopy. All the prepared nanocomposites showed an absorption edge in the visible region. TiO2(90)/LDPE photocatalyst showed the best degradation efficiency after 180 minutes of reaction, without notorious decrease of degradation efficiency after three consecutive uses. Photoluminescence and X-ray photoelectron spectroscopy analyses suggested the presence of vacancies in the TiO2 structure promoted by a Ti–O–C interaction being responsible for the photocatalytic activity enhancement under visible light irradiation.http://www.expresspolymlett.com/letolt.php?file=EPL-0008272&mi=cdPolymer compositesTiO2/LDPETiO2/HDPEPhotocatalytic activityVisible light |
| spellingShingle | M. Romero-Saez L. Y. Jaramillo R. Saravanan N. Benito E. Pabon E. Mosquera F. Gracia Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants eXPRESS Polymer Letters Polymer composites TiO2/LDPE TiO2/HDPE Photocatalytic activity Visible light |
| title | Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants |
| title_full | Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants |
| title_fullStr | Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants |
| title_full_unstemmed | Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants |
| title_short | Notable photocatalytic activity of TiO2-polyethylene nanocomposites for visible light degradation of organic pollutants |
| title_sort | notable photocatalytic activity of tio2 polyethylene nanocomposites for visible light degradation of organic pollutants |
| topic | Polymer composites TiO2/LDPE TiO2/HDPE Photocatalytic activity Visible light |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0008272&mi=cd |
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