Journal ArticleDOI
Biodegradation studies of aniline and nitrobenzene in aniline plant wastewater by gas chromatography
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A gas chromatographic method has been developed for studying the biodegradation of aniline and/or nitrobenzene in anilines plant waste water and its results are precise and afford simultaneous determination of anILine and nitro Benzene.Abstract:
A gas chromatographic (GC) method has been developed for studying the biodegradation of aniline and/or nitrobenzene in aniline plant waste water. The effects of various parameters have been reported and critically discussed. The results are precise and afford simultaneous determination of aniline and nitrobenzene.read more
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Journal ArticleDOI
TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations A review
TL;DR: In this article, the photocatalytic degradation of azo dyes containing different functionalities has been reviewed using TiO2 as photocatalyst in aqueous solution under solar and UV irradiation.
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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)).
Journal ArticleDOI
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.
Journal ArticleDOI
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.