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Chantal Guillard
Researcher at Claude Bernard University Lyon 1
Publications - 224
Citations - 13819
Chantal Guillard is an academic researcher from Claude Bernard University Lyon 1. The author has contributed to research in topics: Photocatalysis & Catalysis. The author has an hindex of 55, co-authored 208 publications receiving 12491 citations. Previous affiliations of Chantal Guillard include National Institute of Advanced Industrial Science and Technology & École centrale de Lyon.
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Journal ArticleDOI
Photocatalytic degradation pathway of methylene blue in water
Ammar Houas,Hinda Lachheb,Hinda Lachheb,Mohamed Ksibi,Elimame Elaloui,Chantal Guillard,Jean-Marie Herrmann +6 more
TL;DR: In this article, the TiO2/UV photocatalytic degradation of methylene blue (MB) has been investigated in aqueous heterogeneous suspensions, and it has been shown that the degradation pathway can be determined by a careful identification of intermediate products, in particular aromatics, whose successive hydroxylations lead to the aromatic ring opening.
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Photocatalytic degradation of various types of dyes (alizarin s, crocein orange g, methyl red, congo red, methylene blue) in water by uv-irradiated titania
Hinda Lachheb,Hinda Lachheb,Eric Puzenat,Ammar Houas,Mohamed Ksibi,Elimame Elaloui,Chantal Guillard,Jean-Marie Herrmann +7 more
TL;DR: In this article, the photocatalytic degradation of five various dyes has been investigated in TiO 2 /UV aqueous suspensions, and it was shown that the dyes can be degraded by varying the chemical structures, either anthraquinonic (Alizarin S), or azoic (Crocein Orange G (OG), Methyl Red (MR), Congo Red (CR)) or heteropolyaromatic (Methylene Blue (MB)).
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Influence of chemical structure of dyes, of pH and of inorganic salts on their photocatalytic degradation by TiO2 comparison of the efficiency of powder and supported TiO2
Chantal Guillard,Hinda Lachheb,Hinda Lachheb,Ammar Houas,Mohamed Ksibi,Elimame Elaloui,Jean-Marie Herrmann +6 more
TL;DR: The role of adsorption is suggested, indicating that the reaction occurs at the TiO 2 surface and not in the solution as mentioned in this paper, and the presence of a silica-binder with an acidic pzc is suggested to be at the origin of the decrease in efficiency.
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Photocatalytic Degradation of Dyes in Water: Case Study of Indigo and of Indigo Carmine
TL;DR: In this paper, a detailed degradation pathway has been determined by careful identification of intermediate products, in particular, carboxylic acids, whose decarboxylation by photo-Kolbe reactions constitutes the main source of CO2 evolution.
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Photocatalytic inactivation of Escherischia coli: Effect of concentration of TiO2 and microorganism, nature, and intensity of UV irradiation
TL;DR: In this paper, the efficiency of photocatalytic disinfection, used to inactivate Escherischia coli K12 under different physico-chemical parameters, was examined and the photocatalyst chosen was the semiconductor TiO2 degussa P25 and the irradiation was produced by an HPK 125 lamp.