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Microwave assisted synthesis of nanostructured titanium dioxide with high photocatalytic activity / Anirudha Jena in Industrial & engineering chemistry research, Vol. 49 N° 20 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9636–9643 Titre : Microwave assisted synthesis of nanostructured titanium dioxide with high photocatalytic activity Type de document : texte imprimé Auteurs : Anirudha Jena, Auteur ; R. Vinu, Auteur ; S. A. Shivashankar, Auteur Année de publication : 2011 Article en page(s) : pp. 9636–9643 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Microwave  Titanium  Dioxide Résumé : TiO2 (anatase) was synthesized using a microwave-irradiation-assisted chemical method. The reaction conditions were varied to obtain unique nanostructures of TiO2 comprising nanometric spheres giving the materials a very porous morphology. The oxide was characterized by X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA). The specific surface area and porosity were quantified by the BET method, and the degradation of dyes was carried out using these materials. The photocatalytic activity of the nanometric TiO2 was significantly higher than that of commercially available TiO2 (Degussa P25) for the degradation of the dyes. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101226b [article] Microwave assisted synthesis of nanostructured titanium dioxide with high photocatalytic activity [texte imprimé] / Anirudha Jena, Auteur ; R. Vinu, Auteur ; S. A. Shivashankar, Auteur . - 2011 . - pp. 9636–9643. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 20 (Octobre 2010) . - pp. 9636–9643 Mots-clés : Microwave  Titanium  Dioxide Résumé : TiO2 (anatase) was synthesized using a microwave-irradiation-assisted chemical method. The reaction conditions were varied to obtain unique nanostructures of TiO2 comprising nanometric spheres giving the materials a very porous morphology. The oxide was characterized by X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis (TGA). The specific surface area and porosity were quantified by the BET method, and the degradation of dyes was carried out using these materials. The photocatalytic activity of the nanometric TiO2 was significantly higher than that of commercially available TiO2 (Degussa P25) for the degradation of the dyes. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101226b