Abstract
Binder-free PANI-WO3/TiO2NTs/Ti plates with enhanced photocatalytic activity were facilely fabricated via pulse reverse co-electrodeposition of polyaniline and tungsten oxide onto the previously formed TiO2 nanotubes/Ti plates. The SEM results of the plates showed that PANI-WO3 nanocomposite is dispersed on surface of TiO2 nanotubes. The electrochemical investigations indicated the high photoresponse, facile electron transfer kinetic and fast photogenerated charge separation efficiency of PANI-WO3/TiO2NTs/Ti plate. The photocatalytic degradation experiments demonstrated that PANI-WO3/TiO2NTs/Ti plates exhibit superior photocatalytic activities for degradation of Methylene Orange (MO) dye when compared to bare TiO2NTs/Ti, PANI/TiO2NTs/Ti and WO3/TiO2NTs/Ti plates. The synergetic effect among PANI, WO3 and TiO2 nanotubes motivated a slow electron–hole recombination as well as a fast charge separation, thus increasing the photocatalytic activity of the PANI-WO3/TiO2NTs/Ti plate. The reusable modified plate has good photocatalytic stability and can be recycled 4 times with only gradual loss of activity.
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Schedule a callMore From: Journal of Photochemistry & Photobiology, A: Chemistry
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