Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Bernadette Lavédrine"'
Publikováno v:
International Journal of Photoenergy, Vol 4, Iss 4, Pp 147-151 (2002)
The photocatalytic degradation of metoxuron [3-(3-chloro-4-methoxyphenyl)-1,1-dimethylurea] in aqueous suspensions of TiO2 was investigated. Several intermediate photoproducts were identified using NMR and MS techniques. Oxidation or removal of the m
Externí odkaz:
https://doaj.org/article/a54b420f3bd44500bcbd0fb83e589150
Publikováno v:
Chemosphere. 58:1431-1437
The photochemical behaviour of several chlorinated pesticides, namely 4-chloro-2-methylphenoxyacetic acid (MCPA), dichlorophen (DCPH), flamprop-methyl (FPM) and vinclozolin (VCZ) is studied on various kinds of sand: Fontainebleau sand (almost pure si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4747cafa0859be3ffb1b00ccd217077d
https://doi.org/10.1016/j.chemosphere.2004.09.085
https://doi.org/10.1016/j.chemosphere.2004.09.085
Publikováno v:
International Journal of Photoenergy, Vol 7, Iss 2, Pp 71-78 (2005)
The degradation of octylbenzene sulfonate (OBS) photoinduced by iron(III) aquacomplexes was investigated upon irradiation at 365 nm and by solar light. The photochemical degradation appears to be due toHO•radicals arising from the electron transfer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::365c63d3b9a390cb45a53643cab7c50b
https://doaj.org/article/5cfe89c052684d72906808f53cbcb2fb
https://doaj.org/article/5cfe89c052684d72906808f53cbcb2fb
Autor:
Tahar Sehili, Bernadette Lavédrine, Pierre Boule, Moulay Abderrahmane Malouki, Abdennour Zertal
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 168:15-22
The main initial photochemical reaction of ioxynil and chloroxynil in pure water is the photohydrolysis of C–halogen bond, leading, in both cases, to a monohalogenated dihydroxybenzonitrile. Reduction is observed as a minor pathway, especially when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::583829e6325798529b33ffd5ee668ed0
https://doi.org/10.1016/j.jphotochem.2004.05.007
https://doi.org/10.1016/j.jphotochem.2004.05.007
Autor:
V. Durga Kumari, M Noorjahan, M. Pratap Reddy, Machiraju Subrahmanyam, Bernadette Lavédrine, Pierre Boule
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 156:179-187
The present work is focused on the heterogeneous photocatalytic degradation of H-acid, a toxic and non-biodegradable dye intermediate, in TiO2 suspensions and TiO2 thin film fixed bed reactor (TFFBR). The degradation studies in slurry form are invest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbe32c1fe42517143cf975e0c3f7b230
https://doi.org/10.1016/s1010-6030(02)00408-2
https://doi.org/10.1016/s1010-6030(02)00408-2
Publikováno v:
New Journal of Chemistry. 27:591-596
The photolysis of 2-iodophenol (2-IPhOH) was investigated by means of laser flash photolysis and product studies. Two major heterolytic dehalogenation pathways could be evidenced upon irradiation of anionic 2-IPhO−: ring contraction leading to cycl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9442c848fe578df6d44505b06b8c4a8
https://doi.org/10.1039/b208423f
https://doi.org/10.1039/b208423f
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 154:189-193
The present work is focused on the influence of metal salts on the photocatalytic efficiency of TiO2 for the elimination of two azo dyes: acid orange-7 (AO-7), tartrazine and a dye intermediate: 3-nitrobenzenesulfonic acid (3-NBSA). A beneficial effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbf5c5569467cd0f8b480c45030d7678
https://doi.org/10.1016/s1010-6030(02)00299-x
https://doi.org/10.1016/s1010-6030(02)00299-x
Publikováno v:
Chemosphere. 49:525-532
The degradation of diethyl phthalate (DEP) photoinduced by Fe(III) in aqueous solutions has been investigated under solar irradiation in the compound parabolic collector reactor at Plataforma Solar de Almeria. Hydroxyl radicals *OH, responsible of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::652007d539168d65cfe01d5fc5ab2602
https://doi.org/10.1016/s0045-6535(02)00418-6
https://doi.org/10.1016/s0045-6535(02)00418-6
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 151:137-143
When 4,4′-dinitrostilbene-2,2′-disulfonate (DSD) is submitted to UV or visible light in aqueous solution, the main photochemical process is a reversible trans – cis isomerisation, the cis form absorbs at shorter wavelength than the trans isomer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d395acbad1d3c67189437ecf701fb6d7
https://doi.org/10.1016/s1010-6030(02)00144-2
https://doi.org/10.1016/s1010-6030(02)00144-2
Publikováno v:
Catalysis Communications. 3:165-171
Porous lavas, more precisely pumice stone, are promising supports for TiO2 used as a photocatalyst. TiO2 deeply penetrates into pores that favours its retention. Its deposition is convenient and facile and the photocatalytic activity is not significa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eadc6b8bf4ce4f233e43339ed65e8351
https://doi.org/10.1016/s1566-7367(02)00076-6
https://doi.org/10.1016/s1566-7367(02)00076-6