Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Physicochemical Problems of Mineral Processing

1 2010

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Ag/Cu-doped TiO2

Sortuj według:

Ogranicz wyniki do:

Preparation of ag/cu-doped titanium (iv) oxide nanoparticles in w/o microemulsion

Zielińska-Jurek A., Walicka M., Tadajewska A., Łącka I., Gazda M., Zaleska A.

Physicochemical Problems of Mineral Processing

2010

Vol. 45

113-126

The Cu-TiO2 and Ag/Cu-TiO2 nanoparticles have been prepared using a water-in-oil microemulsion system of water/AOT/cyclohexane. The photocatalytic activity of the catalysts was estimated by measuring the decomposition rate of phenol in 0.21 mM aqueous solution under visible light irradiation. The bioactivity of Ag/Cu-doped titanium (IV) oxide nanocomposites was estimated using bacteria Escherichia coli and Staphylococcus aureus, yeast Saccharomyces cerevisiae and pathogenic fungi belonging to Candida family. The photocatalysts' characteristics by X-ray diffraction, BET surface area measurements, Scanning Electron Microscopy (SEM) energy dispersive spectroscopy (EDS) analysis showed that a sample with the highest photo- and bioactivity had anatase structure, about 190 m2/g specific surface area, absorbed light for ?>400 nm and contained 1.45 mass % of silver, 1.40 mass % of copper and 59.4 mass % of Ti.