The Influence of Applied Bias Potential on the Photooxidation of Methanol and Salicylate on Titanium Dioxide Films

Photoelectrocatalytic destruction of organics using TiO2 as photoanode with simultaneous production of H2O2 at the cathode

“…The graphite sheet was polished mechanically with fine grades of 800# SiC sand paper and then cleaned with acetone and double distilled water before use. Aniline [7,8,[22][23][24][25] and salicylic acid [26][27][28][29][30], as the target organic contaminant for they have been well-studied by PEC or photocatalysis both by us and others, was of analysis reagent and used as received. Test solutions contained 0.5 M sodium sulfate as supporting electrolyte.…”

“…However, it has also been known that this type of photooxidation has two typical defects [4][5][6][7][8]: one is difficulty of operating TiO 2 particles from aqueous solution while the photocatalytic www.elsevier.com/locate/apcata Applied Catalysis A: General 300 (2006) [24][25][26][27][28][29][30][31][32][33][34][35] reaction has performed in an aqueous TiO 2 suspension; another is very low quantum yield due to a rapid recombination between photogenerated holes and electrons. To avoid separating the spent catalyst particles for the slurry system, alternatively, the catalyst may be immobilized onto a suitable solid support matrix [6][7][8][9], which would eliminate the need for posttreatment removal.…”

Photo-Electro-Oxidation of Alcohols on Titanium Dioxide Thin Film Electrodes

“…32 Electrochemical techniques provide a powerful method for the study of charge-transfer processes at semiconductor/ electrolyte interfaces. They allow determination of parameters such as the steady-state interfacial potential, 3 the oxidation length (i.e., the number of oxidation steps triggered by each single hole transfer), 33 and the faradaic efficiency. 34 Moreover, potentiostatic transients obtained upon shining light provide much more detailed information about the dynamics of the interfacial charge-transfer reactions.…”

Photoelectrocatalytic oxidation of remazol turquoise blue and toxicological assessment of its oxidation products

“…Tel. : +55 16 33 01 6619; fax: +55 16 33 lized TiO 2 films, are widely employed to degrade organic wastes in water [27][28][29][30][31][32][33]. Photoelectrocatalysis has been an attractive way to increase the photocatalytic efficiency.…”