Abstract
A novel photocatalyst is prepared by pulse-electrodeposition of ternary Cu–Zn–S nanoparticles of 2.3eV bandgap onto the surface of TiO2 nanotube array films. Under AM1.5G illumination the Cu–Zn–S sensitized TiO2 nanotube arrays (Cu–Zn–S/TiO2 NTAs) exhibit a significantly increased capability for photocatalytic degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) and anthracene-9-carboxylic acid (9-AnCOOH). After 150min illumination 100% of 2,4-D is removed, compared to 51.8% using the non-sensitized TiO2 NTAs; while after 60min illumination 100% of 9-AnCOOH is removed, compared to 68.5% using the non-sensitized TiO2 NTAs. Herein we consider synthesis details and application of the material system.
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