نتایج جستجو برای: tio2 photocatalyst
تعداد نتایج: 25623 فیلتر نتایج به سال:
A facile, robust approach to the synthesis of Fe3O4/rGO/TiO2 nanocomposites is described. The synthesis involves two major steps: (1) preparation of Fe3O4/GO by an electrostatic self-assembly method; (2) deposition of TiO2 on the surface of the Fe3O4/rGO nanocomposite via a hydrothermal method. The asprepared Fe3O4/rGO/TiO2 photocatalyst exhibited an enhanced photocatalytic activity for the deg...
This study investigated the photocatalytic behaviors for the nanocomposite of TiO2 P25 and Semnan natural zeolite in the decomposition of tetracycline under visible light in an aqueous solution. The structural features of the composite were investigated by a series of complementary techniques that included X-ray diffractometer (XRD), Fourier transform infrared spectroscopy (FTIR), scanning elec...
Photocatalysis is a promising technique to reduce volatile organic compounds indoors. Titanium dioxide (TiO2) is a frequently-used UV active photocatalyst. Because of the lack of UV light indoors, TiO2 has to be modified to get its working range shifted into the visible light spectrum. In this study, the photocatalytic degradation of toluene, butyl acetate and limonene was investigated under UV...
TiO2 as a photocatalyst has been widely investigated and applied in many fields such fuel cells, sterilization, environmental decontamination. Some efforts, operation parameters, synthesis techniques, improvements by doping have made to improve its performance. To with high photocatalytic activity for purification, the most important step is know about methods parameters conditions that lead pr...
Currently, Degussa P25, with the typical mixed phases of anatase and rutile TiO2, is widely applied as the commercial photocatalysts. However, there are still some of obstacles for the P25 nanoparticles with totally high photocatalytic activities, especially for the catalytic stability due to their inevitable aggregation of the nanoparticles when used as the photocatalysts. In the present work,...
0021-9517/$ see front matter Published by Elsevier doi:10.1016/j.jcat.2010.11.001 ⇑ Corresponding author at: Department of Electric Southern California, Los Angeles, CA 90089, USA. Fax: E-mail address: [email protected] (S.B. Cronin). By integrating strongly plasmonic Au nanoparticles with strongly catalytic TiO2, we observe enhanced photocatalytic decomposition of methyl orange under visible ill...
Combinations of TiO2 photocatalysts and various adsorbents have been widely studied for the adsorption and photocatalytic decomposition of gaseous pollutants such as volatile organic compounds (VOCs). Herein, a TiO2-zeolite-porous glass composite was prepared using melt-quenching and partial sintering, hydrothermal treatment, and drop coating for preparation of the porous glass support and X-ze...
ZnFe2O4 microspheres were prepared by solvothermal method, and a novel ZnFe2O4@TiO2 core-shell composite photocatalyst was ultrasonic (denoted as ZT-x) mechanical stirring ZTM-1.2). The morphology, structure, magnetic, optoelectronic properties of the catalyst investigated comprehensively, degradation performance explored through photocatalytic Rhodamine B (RhB) under UV light. concentration Rh...
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