Solar photocatalytic degradation of the herbicide isoproturon on a Bi–TiO2/zeolite photocatalyst

Autor:	Police Anil Kumar Reddy, Basavaraju Srinivas, Valluri Durgakumari, Machiraju Subrahmanyam
Rok vydání:	2012
Předmět:	Materials science Aqueous solution Diffuse reflectance infrared fourier transform Scanning electron microscope Health Toxicology and Mutagenesis Photochemistry Pollution Catalysis Adsorption Chemical engineering Photocatalysis Environmental Chemistry Zeolite Visible spectrum
Zdroj:	Toxicological & Environmental Chemistry. 94:512-524
ISSN:	1029-0486 0277-2248
DOI:	10.1080/02772248.2011.654120
Popis:	The photocatalytic degradation of the herbicide isoproturon under solar light was investigated in aqueous solution containing a Bi–TiO2/zeolite photocatalyst. The catalysts were characterized using X-ray diffraction, UV-Vis diffuse reflectance spectroscopy, Fourier transform-infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The effect of Bi–TiO2 loading onto the zeolite support and influence of the parameters such as catalyst amount, pH, and initial concentration of isoproturon on the degradation rate were evaluated. The recycling ability of the catalyst was found to be sustainable for elongated periods. The high activity of the Bi–TiO2/zeolite was attributed to its absorptivity of visible light and its high adsorption capacity for the pollutant molecules.
Databáze:	OpenAIRE
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