ArticleACS omega2024
Hedgehog Zinc Oxide-Graphene Quantum Dot Heterostructures as Photocatalysts for Visible-Light-Driven Water Splitting.
Article in ACS omega, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Comparative study of the degradation of the 2,4-dichlorophenoxyacetic acid herbicide using zinc oxide and zinc oxide/graphene oxide photocatalysts: efficiency, stability, toxicity, kinetics and mechanism insights.Environmental science and pollution research international · 2026Article
- Graphene Dot-ZnO Hybrid Nanostructures as High-Performance Chemiresistive Sensors for HACS omega · 2026Article
- Room-temperature NOBeilstein journal of nanotechnology · 2026Article
- Computational study of metal doped coronene quantum dots for formaldehyde sensing and adsorption in medical and environmental applications.Scientific reports · 2025Article
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Authors and funding
3 authors.
Funding
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Abstract
The development of efficient photocatalysts for sustainable hydrogen production via water splitting is vital for advancing renewable energy technologies. In this study, we present the synthesis and characterization of a novel visible-light-active photocatalyst comprising hedgehog-shaped zinc oxide (ZnO) nanostructures coupled with graphene quantum dots (GQDs). Optical properties assessed by UV-visible and photoluminescence (PL) spectroscopy revealed that the ZnO/GQDs heterostructure possessed a reduced band gap (2.86 eV) compared with pristine ZnO (3.10 eV), resulting in improved light absorption and charge separation. Electrochemical analyses indicated a significantly higher photocurrent response and lower charge transfer resistance for the ZnO/GQDs heterostructure compared with the pristine ZnO nanostructure. Photocatalytic tests demonstrated that the ZnO/GQDs heterostructure achieved over 3-fold higher hydrogen (H
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