Selective photolysis of aqueous colloidal nano-particles of some metal- oxide semiconductors for hydrogen generation

Kasem K. Kasem

Nat. Inform. Math. Sciences department, School of Art and Science Indiana University Kokomo, Kokomo, IN, 46904 (USA)

ABSTRACT:

Aqueous solutions of [Fe(CN)6 ]4- containing nano-particles of p-type Fe2 O3 ,or TiO2 doped with V2 O5,or Cu2O were used for photo dissociation of water for the selective production of hydrogen. The effects of some oxo-anions were investigated. Studies show that Fe2O3 doped with ZnO was more efficient than Fe2 O3 doped with MgO. Potassium ferro-cyanide gives the most promising results as a solvated-electron supplier and electron exchanger in basic borate buffer. Our studies show that the maximum hydrogen production was recorded for TiO2 doped with V2O5 oxide in basic tartarate buffer. Aqueous nano systems used in these studies retained their stability as indicated by the reproducibility of their photo-catalytic activities.

KEYWORDS:

Selective photolysis; nano-particles; metal- oxide semiconductors

Download this article as: 

Copy the following to cite this article: Kasem K. K. Selective photolysis of aqueous colloidal nano-particles of some metal- oxide semiconductors for hydrogen generation. Orient J Chem 2009;25(1).

Copy the following to cite this URL: Kasem K. K. Selective photolysis of aqueous colloidal nano-particles of some metal- oxide semiconductors for hydrogen generation. Available from: http://www.orientjchem.org/?p=11335