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Self‐Organized TiO 2 Nanotube Array Sensor for the Determination of Chemical Oxygen Demand
Author(s) -
Zheng Q.,
Zhou B.,
Bai J.,
Li L.,
Jin Z.,
Zhang J.,
Li J.,
Liu Y.,
Cai W.,
Zhu X.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200701619
Subject(s) - materials science , fabrication , photocatalysis , nanotechnology , nanotube , chemical oxygen demand , oxygen , chemical stability , oxygen sensor , carbon nanotube , chemical engineering , reproducibility , on demand , optoelectronics , wastewater , catalysis , chromatography , organic chemistry , environmental engineering , computer science , chemistry , engineering , medicine , alternative medicine , multimedia , pathology
Highly organized arrays of TiO 2 nanotubes (as depicted in the figure) are integrated into a thin‐cell photoelectrocatalytic reactor for the rapid determination of chemical oxygen demand in wastewater samples. The high photocatalytic activity of the nanotubes arises from the efficient separation of photogenerated electrons and holes, and enables the fabrication of sensors exhibiting good accuracy, stability, and reproducibility.