Abstract
We report a novel method for fabrication of a nano-TiO2/polyimide (PI)/Ni foam photoanode. Characterization results indicated that porous nanostructured TiO2 films were successfully immobilized and dispersed into the indivisible PI/Ni foam substrate. The prepared photoanode exhibited intense visible-light absorption from 400 to 700 nm, high photoinduced current of 175 μA/cm2, and photoelectrocatalytic (PEC) efficiency of 98.8 % for degradation of methylene blue (MB) within 180 min of simulated solar light irradiation. Moreover, the TiO2/PI/Ni foam photoanode showed obvious visible-light PEC performance, mainly attributed to formation of TiO2–PI charge-transfer (CT) complexes and high separation efficiency of photoinduced charge carriers by the applied bias potential. This study provides a new perspective for preparation of cheap, high-performance visible-light photoelectrocatalytic films.
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Acknowledgements
This work was supported by the National Science and Technology Support Program (2014BAB15B02) and Engineering Research Center of Biomass Materials, Ministry of Education, China (Grant No. 14tdsc03).
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Lei, Y., Huo, J. Enhanced visible-light photoelectrochemical and photoelectrocatalytic activity of nano-TiO2/polyimide/Ni foam photoanode. Res Chem Intermed 44, 6401–6418 (2018). https://doi.org/10.1007/s11164-018-3497-7
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DOI: https://doi.org/10.1007/s11164-018-3497-7