Zobrazeno 1 - 10
of 122
pro vyhledávání: '"Andrea Maldotti"'
Publikováno v:
International Journal of Photoenergy, Vol 2011 (2011)
Titanium dioxide was surface-modified by grafting vanadyl species using vanadyl triisopropoxide as a precursor. The resulting material, (VOx)n/TiO2, was characterized by Raman spectroscopy and photoelectrochemical methods. Photocatalytic oxidation of
Externí odkaz:
https://doaj.org/article/d06996e476434666b340a69077052f59
Autor:
Rossano Amadelli, Luca Samiolo, Andrea Maldotti, Alessandra Molinari, Mario Valigi, Delia Gazzoli
Publikováno v:
International Journal of Photoenergy, Vol 2008 (2008)
The preparation of cobalt-modified TiO2 (Co-TiO2) was carried out by the incipient impregnation method starting from commercial TiO2 (Degussa, P-25) and cobalt acetate. XPS data show that cobalt is incorporated as divalent ion, and it is likely prese
Externí odkaz:
https://doaj.org/article/c4ed46a5d77747518ec79c2262500c8e
Publikováno v:
Photochemicalphotobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology. 20(12)
Visible light (λ 420 nm) selective photooxidation of phenylmethanol and 4-pyridinylmethanol in CH
Visible light (λ > 420 nm) selective photooxidation of phenylmethanol and 4-pyridinylmethanol in CH3CN to the corresponding aldehydes on N-TiO2 is compared with homemade undoped TiO2 (U-TiO2) and commercial undoped anatase specimens (such as PC105,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2d2e508e13c59c57099c7bcd9a47ba7
https://hdl.handle.net/11392/2472720
https://hdl.handle.net/11392/2472720
Publikováno v:
Materials Chemistry and Physics. 158:60-66
In the present study we synthesize three TiO2 samples, TiO2-500, TiO2-750 and TiO2-850, by a sol–gel procedure varying the rutile and anatase content by calcination at different temperatures. Characterization by XRD, NIR-Raman, UV-Raman, BET, DR-UV
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 372:23-28
Photoexcitation of Na 4 W 10 O 32 dissolved in water leads to the formation of hydroxyl radicals. These species originate both from H 2 O oxidation and H 2 O 2 reduction. EPR-spin trapping investigation and laser flash photolysis experiments contribu
Publikováno v:
Catalysis Today. 206:46-52
Photoexcitation of Na 4 W 10 O 32 dissolved in water produces a powerful oxidizing reagent that is able to form hydroxyl radicals from water. OH radicals formation has been demonstrated by EPR spin-trapping technique using DMPO as spin trap. The phot
Autor:
Catia Clementi, Telma Costa, Rui Fausto, Gianna Favaro, Andrea Gómez-Zavaglia, Elizabeth J. Harbron, Linda J. Johnston, Kuppuswamy Kalyanasundaram, Andrea Maldotti, Costanza Miliani, Hiroaki Misawa, João Pina, Fausto Puntoriero, Aldo Romani, J. Sérgio Seixas de Melo, Kosei Ueno
Publikováno v:
Photochemistry. :P001-P004
Autor:
Mariella Mella, Davide Ravelli, Daniele Dondi, Alessandra Molinari, Maurizio Fagnoni, Andrea Maldotti, Angelo Albini
Publikováno v:
Chemistry - A European Journal. 15:7949-7957
Tetrabutylammonium decatungstate (WO) photocatalyzes radical alkylation reactions starting directly from alkanes. When using tert-butylcyclohexane and methylcyclohexane as the radical precursors, the addition to electrophilic alkenes (beta,beta-dialk
Publikováno v:
Photochemical & Photobiological Sciences. 8:613-619
Proper reaction conditions have been found for the conversion of geraniol, citronellol, trans-2-penten-1-ol and 1-pentanol to the corresponding aldehydes with good chemo-selectivity (70%) by photochemical excitation of suspensions of P25-TiO(2). It i