Fabrication of Oxygen‐Doped Double‐Shelled GaN Hollow Spheres toward Efficient Photoreduction of CO2
Source abstract
Abstract
Double‐shelled GaN hollow spheres are prepared for photocatalytic reduction of CO2 through ammonia‐gas nitridation of shape‐analogous Ga2O3 hollow spheres. Small amount oxygen in situ doping narrows the bandgap of the GaN hollow sphere which significantly enhances the utilization of visible light. The large surface area of the hollow spheres provides more activity sites for the photoreduction reaction. The specific hollow structure also allows the trapping of the incident light for a longer time during photocatalysis process, which provides more opportunities for light absorption. Loading of Pt and RuO2 cocatalysts further enhances the separation of photogenerated electrons and holes to improve the CO2 reduction activity.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Ga2O3 and related materials · ZnO doping and properties · GaN-based semiconductor devices and materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Modern Acoustics MOE, Institute of Acoustics School of Physics Nanjing University Nanjing 210093 P. R. China
National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures, and School of Physics Nanjing University 22 Hankou Road Nanjing Jiangsu 210093 P. R. China
Jiangsu Key Laboratory for Nano Technology Ecomaterials and Renewable Energy Research Center (ERERC) Nanjing University 22 Hankou Road Nanjing Jiangsu 210093 P. R. China
College of Chemistry and Chemical Engineering Yancheng Institute of Technology Yancheng 22401 P. R. China
Funding
National Natural Science Foundation of China
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