Reduced graphene oxide/ZnO nanohybrids: Metallic Zn powder induced one-step synthesis for enhanced photocurrent and photocatalytic response
Source abstract
Abstract
Abstract Reduced graphene oxide hybridized hierarchical ZnO nanorods (RGO/ZnO) were fabricated through thermal treatment of aqueous solution containing metallic Zn powder, Zn(NO3)2·6H2O, graphene oxide (GO), and NaOH at 110 °C. This one-spot, additives-free method successfully made metallic Zn powder a reducing agent of GO, a precursor of ZnO, and also a morphology controller of RGO/ZnO. RGO/ZnO nanohybrids with 4 wt-% of RGO displayed optimal photocurrent and photocatalytic response under UV irradiation with 10 times and 2.2 times that of pure ZnO nanoflowers, respectively. Strong coupling and electronic interaction between GO and ZnO were verified by using XPS measurement and photoelectrochemical technique. The combination of supreme absorption (of UV light and dye), suppressed photogenerated carriers recombination, and decreased solid interlayer resistance of nanohybrids contributed to their superior photochemical properties.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · ZnO doping and properties · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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