Inderscience Publishers

Copper-doped ZnO/ZnS core/shell nanotube as a novel photocatalyst system for photocatalytic hydrogen production under visible light

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A novel Cu
2+
ZnO/ZnS core/shell tubular photocatalyst system was successfully constructed. TEM images showed that the ZnO nanotubes were covered with ZnS nanoparticles. It was found that 1% Cu
2+
-doped ZnO/ZnS showed significantly higher hydrogen production rate than that without Cu doping. Photo-generated electrons in Cu-doped ZnS nanoparticles migrated from ZnS to ZnO nanotubes, led to enhanced charge separation, and therefore increased hydrogen production. Our Cu-doped ZnO/ZnS core/shell structure represents an effective photocatalyst system for efficient hydrogen production, which is apparently worth further in-depth study.

Keywords: nanotubes, photocatalyst, copper doped, hydrogen production, visible light, nanotechnology, nanoparticles

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