نتایج جستجو برای: tio2 based photocatalysts
تعداد نتایج: 2955634 فیلتر نتایج به سال:
In this study, the optical properties of a TiO2 photocatalyst were enhanced with various impregnations of Er3+ and Ni2+ separately, using the impregnation method as photocatalysts for the direct solar photolysis degradation of chloroxylenol. The synthesized Er/TiO2 and Ni/TiO2 catalysts were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy...
A visible-light-active photocatalyst, SnP/AA@TiO2, was fabricated by utilizing the coordination chemistry between axial hydroxo-ligand in (trans-dihydroxo)(5,10,15,20-tetraphenylporphyrinato)Sn(IV) complex (SnP) and adipic acid (AA) on surface of TiO2 nanoparticles. The SnP center strongly bonded to nanoparticles via linkage as confirmed various instrumental techniques. SnP/AA@TiO2 exhibited re...
Optimized mesoporous photocatalyst endowed with high specific surface area and large pore size was synthesized by sol-gel method. These large pore mesoporous materials (33.39 nm) were conducive to the movement of larger molecules or groups in pore path and for effective use of active sites. The high specific surface area (SBET, 99.23 m(2) g(-1)) was beneficial to catalytic oxidation on the surf...
Immobilization of photocatalysts in porous materials is an approach to significantly minimize the hazards manipulation and recovery nanoparticles. Inorganic materials, such as zeolites, are proposed promising for photocatalyst immobilization mainly due their photochemical stability. In this work, a green synthesis method combine TiO2-based with commercial ZY zeolite. Moreover, preliminary analy...
CeO2 /TiO2 nanobelt heterostructures are synthesized via a cost-effective hydrothermal method. The as-prepared nanocomposites consist of CeO2 nanoparticles assembled on the rough surface of TiO2 nanobelts. In comparison with P25 TiO2 colloids, surface-coarsened TiO2 nanobelts, and CeO2 nanoparticles, the CeO2 /TiO2 nanobelt heterostructures exhibit a markedly enhanced photocatalytic activity in...
Background and Objectives: The development a low-cost and high efficiency water treatment technology to decolorize the organic dye effluents is desirable due to overwhelming discharge of organic synthetic dyes into the natural water cycle during the dying process. In this study, the decolorization of Acid Black 26, as the model organic contaminant, was investigated using immobilized nano-sized ...
Visible-light-driven hydrogen production through photocatalysis has attracted enormous interest owing to its great potential address energy and environmental issues. However, possesses several limitations overcome for practical applications, such as low light absorption efficiency, rapid charge recombination, poor stability of photocatalysts. Here, the preparation efficient noble metal–semicond...
T dioxide (TiO2), due to its excellent solid-state physical-chemical properties, has demonstrated a wide range of applications in hydrogen production, lithium-ion batteries, fuel cells, gas sensors, detoxification, photovoltaics, photocatalysts, and supercapacitors. The one-dimensional (1D) morphology, such as a TiO2 nanowire (NW), is considered as a superior candidate for achieving higher perf...
Enhanced photocatalytic activity of fish scale loaded TiO2 composites under solar light irradiation.
Fish scale (FS) loaded TiO2 composites were investigated as photocatalysts in degradation of Methyl Orange under solar light irradiation. Composites were prepared through sol-gel method by varying mass ratio of TiO2/FS at 90:10, 70:30 and 50:50, respectively. The catalysts prepared in this study were characterized by using XRD, SEM, FT-IR and nitrogen sorption. The effects of solar irradiation,...
This paper mainly focuses on the synergistic effect of Sn and N dopants to enhance the photocatalytic performance of anatase TiO2 under visible light or simulated solar light irradiation. The Sn and N co-doped TiO2 (SNT-x) photocatalysts were successfully prepared by the facile sol-gel method and the post-nitridation route in the temperature range of 400-550 °C. All the as-prepared samples were...
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