A TiO2-nanotube-array-based photocatalytic fuel cell using refractory organic compounds as substrates for electricity generation

School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai, 200240, People's Republic of China.
Chemical Communications (Impact Factor: 6.83). 08/2011; 47(37):10314-6. DOI: 10.1039/c1cc13388h
Source: PubMed


A TiO(2)-nanotube-array-based photocatalytic fuel cell system was established for generation of electricity from various refractory organic compounds and simultaneous wastewater treatment. The present system can respond to visible light and produce obviously enhanced cell performance when a narrow band-gap semiconductor (i.e. Cu(2)O and CdS) was combined with TiO(2) nanotubes.

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    • "In addition to enhanced optical absorption, it is also important to improve the morphology and structure of TiO 2 for better separation and transportation of photoexcited charge carriers. Highly ordered TiO 2 nanotube arrays (TNTAs) were considered to be a very effective structure for refractory organic compound degradation in the PEC system [37]. The highly ordered structures allow significant light absorption depths and enhance the charge separation by shortening the minority charge carrier transport distance to the electrolyte [38]. "
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