Black brookite TiO2 single-crystalline nanosheets with outstanding photocatalytic activity toward CO2 reduction is prepared by a facile oxidation-based hydrothermal reaction method combined with post-annealing treatment. Large amount of Ti(3+) defects are introduced into the bulk of brookite nanoparticles, which increases the solar energy absorption and enhances the photocatalytic activity.

In this study, we report the facile fabrication of Fe(2)O(3)/CQDs nanocomposites, and investigate their effective photocatalytic activity for the photodegradation of toxic gas (gas-phase benzene and methanol) under visible light. The crucial roles of CQDs in the enhancement of photocatalytic activity of the Fe(2)O(3)/CQDs composites are illustrated.

UiO-66-X (X = H, NH2, NO2, Br) have been successfully synthesized and tested for their photocatalytic activity in water treatment. Results show that electronic effect of the ligand substituents greatly affects the photocatalytic activity of UiO-66. The rates obtained by different substituents are linearly correlated with their Hammett coefficients.

An unprecedented polytantalotungstate (POTT), Cs12.5K4.5H[Ta12Si4W37O158]·25H2O (1), based on the {SiW9Ta3O40}7- cluster was hydrothermally synthesized. A photocatalytic study revealed that 1 exhibits significant photocatalytic water splitting activity.

Nanosized ZrO2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N2 adsorption measurements. The performance ...

Intrinsic short hole diffusion length is a well-known problem for α-Fe2O3 as a visible-light photocatalytic material. In this paper, a nanodisk morphology was designed to remarkably enhance separation of electron-hole pairs of α-Fe2O3. As expected, α-Fe2O3 nanodisks presented superior photocatalytic activity toward methylene blue degradation: more than 90% of the dye could be photodegraded with...

Photocatalytic activity in the reduction of CO(2) with H(2)O to CH(4) was significantly enhanced by simply adding MgO to TiO(2) loaded with Pt. A positive correlation between CH(4) formation activity and basicity was observed. The interface between TiO(2), Pt and MgO in the trinary nanocomposite played a crucial role in CO(2) photocatalytic reduction.

The paper reports the preparation and photocatalytic activity of ZnO/SnO2 and SnO2 nanoparticles. These nanoparticles were synthesized by hydrothermal method. The products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Their grain sizes are about 50-100 nm. The photocatalytic activities of these materials were investigated for congo red removal from aqueou...

pigment and is widely used as a coating material for solid pharmaceutical preparations. Recently, many studies have been performed, from a material science perspective, to modify the function of TiO2 as a strong photocatalyst. In some studies the photocatalytic activity of TiO2 has been linked to oxidation-reduction reactions. With regard to pigment use, TiO2 is usually surface-treated to preve...

This research work intended to study some important operational parameters on the photocatalytic activity of a new type of poly(methyl methacrylate) (PMMA)/IL-TiO2 nanocomposite, prepared by microemulsion method. For the first step, it is confirmed that the prepared nanocomposite has a significant effect on photodecomposition of the Trypan Blue (TB), as an anionic hydrophilic azo...