The objective of this research was to investigate how the photocatalytic activity pure TiO2 can be improved by SnO2 modification. Different molar ratios tin titanium were prepared. correlation between concentration and structural properties investigated explain mechanism efficiency optimize synthesis conditions obtain enhanced SnO2-modified photocatalysts under UV-irradiation. prepared a low-te...

C-SAAoa particles synthesized by simple and low-cost calcining industrial solid waste aluminium ash combined with oxalic acid modification process show excellent performance in fluoride removal speed adsorption capacity. Their capacity on was determined at about 180.57 mg/g pH 3.0, which among the highest reported values literature. It that mechanism of followed mechanisms such as ion exchange,...

The effect of calcining in either air (VSTO-A) or 5% H2/N2 (VSTO-H) on the thermoelectric performance La and Sm co-doped A-site-deficient Sr1-3x/2Lax/2Smx/2TiO3-δ ceramics is reported. All calcined powders were sintered 6 h at 1773 K to ≥96% relative density. peaks X-ray diffraction patterns indexed as a cubic perovskite phase. Scanning electron microscopy revealed grain sizes ~14 ~10 μm for VS...

The Co3O4 hollow dodecahedron (Co3O4@CN) was prepared by calcining ZIF-67 in N2 and then air atmosphere. In the Co3O4@CN compound material, nanoparticles (Co3O4 NPs) are anchored carbon skeleton, solving aggregation problem of NPs. Because retains porous structure ZIF-67, presence Co2+ Co3+ favors electron transfer between enzyme substrates, it has excellent peroxidase-like (POD-like) activity....

Anatase TiO2 films were successfully prepared on foam nickel substrates by sol-gel technique using tetrabutyl titanate as precursor. The characteristics of the TiO2 films were investigated by XPS, XRD, FE-SEM, TEM and UV-Vis absorption spectra. The photocatalytic activities of TiO2 films were investigated by photocatalytic degradation reactions of gaseous acetaldehyde, an indoor pollutant, unde...

Thin mesoporous films of α-Fe(2)O(3) have been prepared on conducting glass substrates using layer-by-layer self-assembly of ca. 4 nm hydrous oxide nanoparticles followed by calcining. The electrodes were used to study the oxygen evolution reaction (OER) in the dark and under illumination using in situ potential-modulated absorption spectroscopy (PMAS) and light-modulated absorption spectroscop...

The effects of the SnO2 pore size and metal oxide promoters on the sensing properties of SnO2-based thick film gas sensors were investigated to improve the detection of very low H2S concentrations (<1 ppm). SnO2 sensors and SnO2-based thick-film gas sensors promoted with NiO, ZnO, MoO3, CuO or Fe2O3 were prepared, and their sensing properties were examined in a flow system. The SnO2 materials w...

Nitrogen-doped TiO2 (N-TiO2) nanoparticles were prepared by calcining the anatase TiO2 nanoparticles under ammonia atmosphere. The N-TiO2 showed higher absorbance in the visible region than the pure TiO2. The cytotoxicity and visible-light-induced phototoxicity of the pure- and N-TiO2 were examined for three types of cancer cell lines. No significant cytotoxicity was detected. However, the visi...