The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue

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dc.authorscopusid57392706000en_US
dc.authorscopusid6602001525en_US
dc.authorwosid-en_US
dc.authorwosidKVP-4764-2024en_US
dc.contributor.authorArı, Betül
dc.contributor.authorSengel, Sultan B.
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-02-07T06:18:26Z
dc.date.available2025-02-07T06:18:26Z
dc.date.issued2021en_US
dc.departmentFakülteler, Fen Fakültesi, Kimya Bölümüen_US
dc.description.abstractPoly(2-acrylamido-2-methyl-1-propane sulfonic acid) (p(AMPS)) anionic hydrogels with 1, 5 and 10 wt% TiO2 particles were prepared by a simultaneous free radical polymerization and crosslinking reaction. The hydrogel composites were tested as photo-catalysts for the degradation of methylene blue (MB) in water. Since MB dye is positively charged, MB should be readily absorbed by the anionic p(AMPS) hydrogel and then degraded by the entrapped TiO2 nanoparticle photocatalysts within the p(AMPS) matrix. Photocatalytic degradation of MB was promoted using a UV lamp (300 W) to activate TiO2 particles and was monitored by UV–Vis spectrometer. Interestingly, the activation energy of 20.58 kJ.mol−1 was found to be one of the lowest reported in the literature. The reusability and regeneration efficiency studies of the composite catalyst showed that the p(AMPS)-TiO2 composite catalyst possessed 90% activity even after five repetitive use and maintained above 85% activity even after the second regeneration. Using different organic scavengers such as ascorbic acid, dimethylsulfoxide and methanol, it was determined that the main reactive species in the photodegradation of MB dye are electrons and superoxide ions. p(AMPS)-TiO2 composite hydrogel has potential to be used as a good photocatalyst in degradation of toxic dyes and some organic pollutants.en_US
dc.identifier.citationArı, B., Sengel, S. B., & Şahiner, N. (2021). The use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blue. SPE Polymers, 2(2), 97–109. https://doi.org/10.1002/pls2.10035en_US
dc.identifier.doi10.1002/pls2.10035en_US
dc.identifier.endpage109en_US
dc.identifier.issn2690-3857
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85118200171en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage97en_US
dc.identifier.urihttps://doi.org/10.1002/pls2.10035
dc.identifier.urihttps://hdl.handle.net/20.500.12428/29571
dc.identifier.volume2en_US
dc.indekslendigikaynakScopus
dc.institutionauthorArı, Betül
dc.institutionauthorŞahiner, Nurettin
dc.institutionauthorid-
dc.institutionauthorid0000-0003-0120-530X
dc.language.isoengen_US
dc.publisherJohn Wiley and Sons Incen_US
dc.relation.ispartofSPE Polymersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.subjectCatalysisen_US
dc.subjectCompositesen_US
dc.subjectHydrogelen_US
dc.subjectMetal–organic catalysts/organometallic catalystsen_US
dc.subjectPhotodegradation mechanismen_US
dc.subjectReusability/regenerationen_US
dc.titleThe use of titanium dioxide particles embedded in anionic hydrogel composite for photocatalytic degradation of methylene blueen_US
dc.typearticleen_US

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