Artículos de revistas
Photocatalytic Degradation Of Phenol And Chlorinated Phenols Using Agtio2 In A Slurry Reactor
Water Research. , v. 28, n. 8, p. 1845 - 1849, 1994.
Photodegradation of phenol (PhOH), 2,4-dichlorophenol (2,4-DCP), 2,3,5-trichlorophenol (2,3,5-TCP) and pentachlorophenol (PCP) was investigated using an open upflow slurry reactor and TiO2 (Ag-loaded) as photocatalyst. Light was provided by three 125 W high-pressure mercury lamps. Best degradation rates were obtained using 250 mg l-1 of AgTiO2 in the presence of H2O2 and a constant supply of air (1.71 min-1). Under this optimized condition, destruction rate constants obtained for a 1 × 10-4M solution of PhOH, 2,4-DCP, 2,3,5-TCP and PCP were 0.0493, 0.0430, 0.0367 and 0.0356 min-1, respectively. Each gram of phenol required 1.70 kW for its photodestruction. © 1994.28818451849Al-Ekabi, Serpone, Pelizzetti, Minero, Fox, Draper, Kinetic studies in heterogenous photocatalysis. 2. TiO2 mediated degradation of 4-chlorophenol, 2,4-dichlorophenol and 2,4,5-trichlorophenol in air-equilibrated aqueous media (1989) Langmuir, 5, pp. 250-255Box, Investigation of the Folin-Ciocalteau phenol reagent for the determination of polyphenolic substance in natural waters (1983) Wat. Res., 17, pp. 511-525C&en, Chemical uses of solar energy found promising (1991) Chem. Engng News, 19, p. 8Davis, Huang, The removal of substituted phenols by a photocatalytic oxidation process with cadmium sulfide (1990) Wat. Res., 24, pp. 543-550D'Oliveira, Al-Sayyed, Pichat, Photodegradation of 2- and 3-chlorophenol in TiO2 aqueous suspensions (1990) Envir. Sci. Tehnol., 24, pp. 990-996Hisanaga, Harada, Tanaka, Photocatalytic degradation of organochlorine compounds in suspended TiO2 (1990) J. Photochem. Photobiol. A: Chem., 54, pp. 113-118Jardim, Pasquini, Guimaråes, Faria, Short-term toxicity using Escherichia coli: monitoring CO2 production by flow injection analysis (1990) Wat. Res., 24, pp. 351-354Kochany-Lipczynska, Bolton, Flash photolysis/HPLC applications 2 Direct photolysis vs hydrogen peroxide mediated photodegradation of 4-chlorophenol as studied by a flash photolysis/HPLC technique (1992) Environmental Science & Technology, 26, pp. 259-261Kondo, Jardim, Photodegradation of chloroform and urea using Ag-loaded titanium dioxide as catalyst (1991) Wat. Res., 25, pp. 823-827Kormann, Bahnemann, Hoffmann, Environmental photochemistry: is iron oxide (Hematite) an active photocatalyst? (1989) A comparative study: α-Fe2O3, ZnO, TiO2, 48, pp. 161-169. , J. Photochem. Photobiol. A: ChemMatthews, Photo-oxidation of organic material in aqueous suspensions of titanium dioxide (1986) Wat. Res., 20, pp. 569-578Matthews, Purification of water with near-UV illuminated suspensions of titanium dioxide (1990) Wat. Res., 24, pp. 653-660Okamoto, Yamamoto, Tanaka, Tanaka, Itaya, Heterogeneous photocatalytic decomposition of phenol over TiO2 powder (1985) Bulletin of the Chemical Society of Japan, 58, pp. 2015-2022Pruden, Ollis, Degradation of chloroform by photoassisted heterogeneous catalysis in dilute aqueous suspension of titanium dioxide (1983) Envir. Sci. Technol., 17, pp. 628-631Sclafani, Palmisano, Davi, Photocatalytic degradation of phenol in aqueous polycrystalline TiO2 dispersion: the influence of Fe+3, Fe+2 and Ag+ on the reaction rate (1990) J. Photochem. Photobiol. A: Chem., 58, pp. 113-123Sclafani, Palmisano, Davi, Photocatalytic degradation of phenol by TiO2 aqueous dispersions: rutile and anatase activity (1991) New J. Chem., 14, pp. 265-268Turchi, Ollis, Photocatalytic degradation of organic water contaminants: mechanisms involving hydroxyl radical attack (1990) J. Catal., 122, pp. 178-192Wei, Wang, Wan, Photocatalytic oxidation of phenol in the presence of hydrogen peroxide and titanium dioxide powers (1990) J. Photochem. Photobiol. A: Chem., 55, pp. 115-126