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Content Provider | World Health Organization (WHO)-Global Index Medicus |
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Author | Khainakov, Sergei Díaz, Eva Amghouz, Zakariae Krivtsov, Igor García, José R. Ilkaeva, Marina Ordóñez, Salvador Patiño, Yolanda |
Description | Country affiliation: RUSSIA Author Affiliation: Ilkaeva M ( Department of Organic and Inorganic Chemistry, University of Oviedo-CINN, 33006, Oviedo, Spain); Krivtsov I ( Department of Organic and Inorganic Chemistry, University of Oviedo-CINN, 33006, Oviedo, Spain); Díaz E ( Department of Chemical and Environmental Engineering, University of Oviedo, 33006, Oviedo, Spain.); Amghouz Z ( Department of Materials Science and Metallurgical Engineering, University of Oviedo, Campus Universitario, 33203 Gijón, Spain.); Patiño Y ( Department of Chemical and Environmental Engineering, University of Oviedo, 33006, Oviedo, Spain.); Khainakov S ( Scientific Technical Services, University of Oviedo, 33006, Oviedo, Spain.); García JR ( Department of Organic and Inorganic Chemistry, University of Oviedo-CINN, 33006, Oviedo, Spain.); Ordóñez S ( Department of Chemical and Environmental Engineering, University of Oviedo, 33006, Oviedo, Spain.) |
Abstract | The photocatalytic TiO -assisted decomposition of 2-(4-methylphenoxy)ethanol (MPET) in aqueous solution has been studied for the first time. The intermediate compounds of MPET photodegradation have been also determined. A toxic p-cresol is formed in significant quantities during the photocatalytic reaction. A solvent-exchange approach for a template-free preparation of spherical TiO particles has been described, which is based solely on precipitation of hydrous titania from aqueous titanium peroxo complex by using organic solvents. The proposed method favours the formation of spherical titania particles with a mean size varying from 50 to 260nm depending on the choice of solvent. The procedure for converting nonporous titania spheres into mesoporous material maintaining the same spherical morphology has been developed. The synthesized TiO spheres demonstrate a degree of MPET photo-degradation close to that of the commercial titania Aeroxide P25, besides being successfully recovered and reused for four reaction cycles without loss of photocatalytic activity. The effectiveness of the commercial Aeroxide P25 in MPET photodegradation, on the other hand, suffers 10-time drop during the third reaction cycle, which is attributed to its poor recoverability because the photocatalyst is composed of small particles of 20nm size. |
ISSN | 03043894 |
Journal | Journal of Hazardous Materials |
Volume Number | 332 |
e-ISSN | 18733336 |
Language | English |
Publisher | Elsevier |
Publisher Date | 2017-03-01 |
Publisher Place | Netherlands |
Access Restriction | Subscribed |
Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
Content Type | Text |
Resource Type | Article |
Subject | Environmental Engineering Health, Toxicology and Mutagenesis Waste Management and Disposal Pollution Environmental Chemistry |
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