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Title

Study of adsorption and degradation of dimethylphthalate on TiO2-based photocatalysts

AuthorsPulido Melián, E.; Henríquez-Cárdenes, E.; González Díaz, O.; Doña Rodríguez, J. M.
KeywordsTiO2
Freundich
FTIR
Langmuir-Hinshelwood
Dimethylphthalate
Issue Date22-Aug-2016
PublisherElsevier
CitationChemical Physics 475: 112-118 (2016)
AbstractThis work studied the degradation and adsorption of dimethylphthalate (DMP) using various TiO-based photocatalysts: TiO Aeroxide P25, Kronos vlp7000, Hombikat UV-100, Kemira 650 and a synthesized photocatalyst named SG750. As the photocatalysts with mixed anatase and rutile phases, P25 and SG750, showed greater activity than those of pure phase, an in-depth study was undertaken of these two catalysts in the adsorption and degradation of DMP. The degradation results were fitted with a high degree of correlation to the Langmuir-Hinshelwood model and those for adsorption to the Freundlich model. The Freundlich constants showed good correlation with FTIR observations of the DMP-P25 and DMP-SG750 interactions. These two photocatalysts were additionally modified by photodeposition with Pt and Au (0.5–1.5 wt%) to study the effect of these metals on degradation and mineralization kinetics.
Publisher version (URL)https://doi.org/10.1016/j.chemphys.2016.04.021
URIhttp://hdl.handle.net/10261/190836
DOI10.1016/j.chemphys.2016.04.021
ISSN0301-0104
Appears in Collections:(ICMS) Artículos

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