.... The receiver-reactor and strategy of operation were iteratively optimized with respect to chemical conversion and reactor efficiency. Parametric studies were conducted with varying partial pressure of S O 3 , residence time, absorber temperature, the presence of catalyst, and the performance of different...

...Juan M. Coronado; Benigno Sánchez; Fernando Fresno; Silvia Suárez; Raquel Portela In this work, the influence of the reactor configuration and the characteristics of the catalysts on the photodegradation of trichloroethylene (TCE) vapors are studied under sunlight illumination. The photocatalytic...

... 2008 catalysts crystallisation dip coating energy gap extinction coefficients fluorine heat treatment photochemistry refractive index semiconductor growth semiconductor thin films sol-gel processing titanium compounds X-ray diffraction X-ray photoelectron spectra sol-gel...

.... , and Jirkovský , J. , 1998 , “ Photocatalytic Degradation of Diuron [3-(3,4-Dichlorophenyl)-1,1-Dimethylurea] on the Layer of TiO2 Particles in the Batch Mode Plate Film Reactor ,” Electrochim. Acta 0013-4686 , 72 , pp. 169 – 175 . Two different forms of Degussa P25 Ti O 2 catalysts...

... of the three organics during their photocatalytic treatment has also been studied. The obtained results have been interpreted according to Fourier transform infrared studies on the interaction of the molecules with the catalyst surface and their reaction mechanisms by gas chromatographpy-mass spectrometry (GC...

...R. Ben-Zvi; J. Karni The Directly-Irradiated Annular Pressurized Receiver ( DIAPR ) volumetric solar absorber was adapted to operate as a methane reformer by coating the absorber pins with catalyst. A computational model is applied to assess and improve the system design. The simulation entails...

... this work. 08 07 2005 08 03 2006 hydrogen economy solar power catalysts photochemistry hydrogen compounds silicon compounds Solar hydrogen production will be the cornerstone of the future hydrogen economy. It is generally pointed out that solar-based water-splitting...

...H. I. Villafán-Vidales; S. A. Cuevas; C. A. Arancibia-Bulnes Background. The calculation of radiation absorption by the catalyst in solar photocatalytic reactors has been addressed by some authors, because it is a necessary step for the modeling of the detoxification of polluted water...

... catalysts were used in this study, the total energy value, Q UV , n , was divided by the total surface area of the catalyst using Eq. 2 in order to avoid errors caused by the film surface area 2 Q UV , film = Q UV , n A film where Q UV , film...

...J. Araña; J. M. Doña Rodríguez; O. González Díaz; J. A. Herrera Melián; J. Pérez Peña. The photocatalytic features of Ti O 2 doped with ferric oxides or mixed with activated carbon ( AC - Ti O 2 ) are compared with those of the unmodified Degussa P-25 Ti O 2 . These new catalysts show specific...

... the surface with the catalyst or only the half or in stripes, etc. are underway, together with disinfection experiments and tests with real waters. TiO 2 -impregnated PET bottles were superior to glass materials because they exhibited similar...

... P d value than the absorber activated with the conventionally used Rh ∕ γ - Al 2 O 3 catalyst, under the visible light irradiation. The activity comparison between these absorbers was also carried out in the reforming test under the infrared irradiation at the constant...

...Tsuyoshi Hatamachi; Tatsuya Kodama; Yuuki Isobe The composite materials of Ni-applied, porous zirconia balls with molten Na 2 CO 3 salt were examined for use in solar thermochemical reforming of methane as the catalyst with high-temperature thermal storage. The millimeter-sized composite balls were...

...Hisahiro Einaga; Takashi Ibusuki; Shigeru Futamura Photocatalytic oxidation of benzene in air at room temperature was studied in order to obtain the information on its reactivity on the photoirradiated TiO 2 catalyst. The objective of this paper is to describe in detail the dependence of the rate...

... to an example of each one of the experiments carried out but really they have been repeated at least once. Similar tests at higher catalyst concentrations have not been performed because solution opacity increases and no improvement in the mineralization will be obtained. As during the oxidation process many...