Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
View/ Open
Date
2011Author
Type
Title alternative
SiO2-TiO2 materials for diuron photocatalytic degradation
Abstract
SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 oC). The samples were characterized by N2 adsorptiondesorption measurements, scanning electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy and infrared diffuse reflectance spectroscopy. The results showed that the material ...
SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 oC). The samples were characterized by N2 adsorptiondesorption measurements, scanning electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy and infrared diffuse reflectance spectroscopy. The results showed that the materials synthesized with the surfactant had higher surface areas and band-gap values similar to anatase. All materials were more active than the commercial catalyst P-25 and better performance was achieved using the surfactant in the material synthesis. ...
In
Química nova. São Paulo. Vol. 34, n.8 (2011), p. 1343-1348
Source
National
Collections
-
Journal Articles (39123)Exact and Earth Sciences (5955)
This item is licensed under a Creative Commons License