Photoelectrocatalytic Degradation of Sodium Oxalate by TiO2/Ti Thin Film Electrode | Zendy

Chen-Yu Chang | Zendy; YungHsu Hsieh | Zendy; Yuying Chen | Zendy

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Photoelectrocatalytic Degradation of Sodium Oxalate by TiO₂/Ti Thin Film Electrode

Author(s) -

Chen-Yu Chang,

YungHsu Hsieh,

Yuying Chen

Publication year - 2012

Publication title -

international journal of photoenergy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.426

H-Index - 51

eISSN - 1687-529X

pISSN - 1110-662X

DOI - 10.1155/2012/576089

Subject(s) - sodium oxalate , electrolyte , degradation (telecommunications) , oxalate , photocatalysis , sodium , materials science , electrode , thin film , irradiation , titanium , substrate (aquarium) , sodium sulfate , chemical engineering , deposition (geology) , inorganic chemistry , chemistry , catalysis , nanotechnology , metallurgy , oceanography , computer science , engineering , biology , telecommunications , paleontology , biochemistry , nuclear physics , physics , sediment , geology

The photocatalytically active TiO2 thin film was deposited on the titanium substrate plate by chemical vapor deposition (CVD) method, and the photoelectrocatalytic degradation of sodium oxalate was investigated by TiO2 thin film reactor prepared in this study with additional electric potential at 365 nm irradiation. The batch system was chosen in this experiment, and the controlled parameters were pH, different supporting electrolytes, applied additional potential, and different electrolyte solutions that were examined and discussed. The experimental results revealed that the additional applied potential in photocatalytic reaction could prohibit recombination of electron/hole pairs, but the photoelectrocatalytic effect was decreased when the applied electric potential was over 0.25 V. Among the electrolyte solutions added, sodium sulfate improved the photoelectrocatalytic effect most significantly. At last, the better photoelectrocatalytic degradation of sodium oxalate occurred at pH 3 when comparing the pH influence

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