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Nanoparticles TiO2-Photocatalyzed oxidation of selected cyclohexyl alcoholس

ملخص البحث

Abstract

The present article embraces the photocatalytic previous termoxidationnext term (PCO) of three previous termselected cyclohexyl alcoholsnext term namely cyclohexylmethanol (1), 2-cyclohexylethanol (2) and 1-cyclohexylethanol (3) using previous termnanoparticlesnext term titanium dioxide (TiO2-P25) as a semiconductor photocatalyst in acetonitrile under aerated conditions. The photocatalytic experiments showed moderate conversion ratios (55.2%, 51.8% and 60.3%, respectively). The primary photocatalytic previous termoxidationnext term products are the corresponding aldehydes or ketones and acids. The photocatalytic previous termoxidationnext term products were identified mainly by GC and GC/MS techniques using authentic samples. Formation of electron–hole pair at the surface of the semiconductor previous termnanoparticlesnext term followed by previous termoxidationnext term reaction was the suggested mechanism. A first-order kinetic model was observed for the photocatalytic previous termoxidationnext term of the investigated previous termalcoholsnext term and the rate constants were calculated.

مؤلف البحث
Omima S. Mohameda, Saleh A. Ahmeda, Mostafa F. Mostafaa and Aboel-Magd A. Abdel-Wahab
قسم البحث
مجلة البحث
Journal of Photochemistry and Photobiology A: Chemistry
صفحات البحث
209-215
تصنيف البحث
1
عدد البحث
200
سنة البحث
2008