Reference : Degradation of p-nitrophenol and bacteria with TiO2 xerogels sensitized in situ with ...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
Life sciences : Microbiology
http://hdl.handle.net/2268/158017
Degradation of p-nitrophenol and bacteria with TiO2 xerogels sensitized in situ with tetra(4-carboxyphenyl)porphyrins
English
Tasseroul, Ludivine mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Nanomatériaux et interfaces >]
Lambert, Stéphanie mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Eskenazi, David mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Amoura, Makhlouf [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Nanomatériaux et interfaces >]
Páez, Carlos Alberto mailto [Laboratoire de Génie Chimique, B6a, Université de Liège, B-4000 Liège, Belgium]
Hiligsmann, Serge mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Thonart, Philippe mailto [Université de Liège - ULg > Département des sciences de la vie > Biochimie et microbiologie industrielles >]
Heinrichs, Benoît mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Nanomatériaux et interfaces >]
2013
Journal of Photochemistry and Photobiology A : Chemistry
272
90-99
Yes (verified by ORBi)
International
1010-6030
[en] Escherichia coli ; Lactobacillus rhamnosus ; Photocatalytic degradation ; Porphyrin sensitization ; Sol-gel synthesis
[en] TiO2-based materials doped with porphyrins have been prepared using a sol-gel process. To stabilize the TiO2-dye interactions, free metal tetra(4-carboxyphenyl)porphyrin and nickel tetra(4-carboxyphenyl) porphyrin were introduced in situ into the TiO2 matrix during the sol-gel process rather than by grafting. Samples were thoroughly characterized by TEM, X-ray diffraction, FT-IR, DR-UV/vis and their texture has been examined by nitrogen adsorption-desorption at 77 K. The low thermal treatment allows obtaining anatase-TiO2 particles with high specific surface area without porphyrin degradation. A significant improvement of the photoactivity under visible light of porphyrin doped-TiO2 xerogels was observed for p-nitrophenol and for bacterial degradation. © 2013 Elsevier B.V. All rights reserved.
http://hdl.handle.net/2268/158017
10.1016/j.jphotochem.2013.08.023

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