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Influence of crystallization of nano TiO2 prepared by adsorption phase synthesis on photodegradation of gaseous toluene / Ting Wang in Industrial & engineering chemistry research, Vol. 48 N° 13 (Juillet 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6224–6228 Titre : Influence of crystallization of nano TiO2 prepared by adsorption phase synthesis on photodegradation of gaseous toluene Type de document : texte imprimé Auteurs : Ting Wang, Auteur ; Xin Jiang, Auteur ; Yanxiang Wu, Auteur Année de publication : 2009 Article en page(s) : pp. 6224–6228 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : TiO2/SiO2  Gaseous  toluene  Catalytic  activity  Photocatalytic  activity Résumé : TiO2/SiO2 was prepared by adsorption phase synthesis, and its photocatalysis on degradation of gaseous toluene was studied. The concentration of water added in preparation and temperature in calcination were changed to regulate formation of anatase TiO2. Ti contents in samples and grain size of anantase TiO2 were measured, and the catalytic activity in photodegrading gaseous toluene was characterized. The photocatalytic activity increased sharply when the calcination temperature increased to 500 °C or the volume of water added in preparation reached 1.5 mL. XRD analysis indicated that the crystal phase transformation of TiO2 from anatase to rutile was restrained and TiO2 remained in the form of anatase even after being sintered at 900 °C. The high constant photocatalytic activity from 500 to 900 °C was attributed to the stability of anatase TiO2 in crystal size and phase transformation. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801974y [article] Influence of crystallization of nano TiO2 prepared by adsorption phase synthesis on photodegradation of gaseous toluene [texte imprimé] / Ting Wang, Auteur ; Xin Jiang, Auteur ; Yanxiang Wu, Auteur . - 2009 . - pp. 6224–6228. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 13 (Juillet 2009) . - pp. 6224–6228 Mots-clés : TiO2/SiO2  Gaseous  toluene  Catalytic  activity  Photocatalytic  activity Résumé : TiO2/SiO2 was prepared by adsorption phase synthesis, and its photocatalysis on degradation of gaseous toluene was studied. The concentration of water added in preparation and temperature in calcination were changed to regulate formation of anatase TiO2. Ti contents in samples and grain size of anantase TiO2 were measured, and the catalytic activity in photodegrading gaseous toluene was characterized. The photocatalytic activity increased sharply when the calcination temperature increased to 500 °C or the volume of water added in preparation reached 1.5 mL. XRD analysis indicated that the crystal phase transformation of TiO2 from anatase to rutile was restrained and TiO2 remained in the form of anatase even after being sintered at 900 °C. The high constant photocatalytic activity from 500 to 900 °C was attributed to the stability of anatase TiO2 in crystal size and phase transformation. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801974y