PHOTOCATALYTIC ACTIVITY OF MOLYBDATES: A TECHNOLOGICAL PROSPECTING

Morinda citrifolia and the pharmaceutical industry: technological prospecting and potential

Introduction Medicinal plants have been used since ancient times as medicines for the treatment of a wide range of diseases. Morinda citrifolia L (Noni) has been used in folk remedies by Polynesians for over 2000 years, and is reported to have a broad range of therapeutic effects, including effects against headache, fever, arthritis, gingivitis, respiratory disorders, infections, tuberculosis a...

Bactericidal Activity of Photocatalytic TiO

A Comparison of Photocatalytic Activity of ‎TiO2 Nanocomposites Doped with Zn2+/Fe3+ ‎and Y3+ Ions

   TiO2 based nanocomposites (NCs) were synthesized using the co-precipitation/hydrolysis (CPH) method. The composition of the first set (TZF) and the second set (TY) of NCs were: TiO2.[ZnFe2O4]x (with x = 0.1 to 0.5), and TiO2.[Y2O3]x (with x = 0.1 to 0.5), respectively. NCs with average crys...

A Comparative Study of Photocatalytic Activity of Some Coloured Semiconducting Oxides

The use of colored semiconductor oxide like copper (II) oxide and nickel (II) oxide for photocatalytic bleaching of rose bengal was investigated in detail. In order to harness the solar energy, the effective wavelength of the photocatalyst is to be expanded into the visible region and that increases the rate of photocatalytic bleaching of the dye. Progress of the reaction was observed spect...

Dependence of Photocatalytic Activity of TiO2-SiO2 Nanopowders

Structural properties and chemical composition change the photocatalytic activity in TiO2-SiO2 nanopowder composite. The SiO2-TiO2 nanostructure is synthesized based on sol–gel method. The nanoparticles are characterized by x-ray fluorescents (XRF), x- ray diffraction (XRD), tunneling electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), UV-vis. Spectrophotometer and ...