A novel In₂O₃nanorods/graphene heterostructure for enhanced photocatalysis
Jinfan Liu1, Bin Hou1, Zengkun You1
1School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031 Sichuan, People's Republic of China.
Nanotechnology
|February 5, 2026
Summary
This study introduces In₂O₃ nanorods decorated with graphene to enhance photocatalytic degradation of pollutants. The novel composite material significantly boosts efficiency by preventing electron-hole recombination, offering a cleaner environmental solution.
Area of Science:
- Materials Science
- Environmental Science
- Nanotechnology
Background:
- Photocatalytic technology is crucial for addressing ecological degradation.
- Semiconductor photocatalysts are widely studied but limited by rapid photogenerated electron-hole pair recombination.
- Efficient charge separation is key to improving photocatalytic performance.
Purpose of the Study:
- To fabricate In₂O₃ nanorods loaded with graphene for enhanced photocatalysis.
- To suppress photogenerated carrier recombination in In₂O₃ using graphene's high electron mobility.
- To improve the overall photocatalytic efficiency of In₂O₃ nanostructures.
Main Methods:
- Preparation of In₂O₃ nanorods via glancing angle deposition.
- Loading In₂O₃ nanorods with graphene to form In₂O₃/graphene composite.
- Characterization of the composite's structure and photocatalytic activity.
Main Results:
- Fabrication of In₂O₃ nanorods loaded with graphene structure.
- Achieved photocurrent density of 0.6 mA/cm² under optimal graphene loading.
- Photocurrent density and degradation efficiency improved by 81.82% and 33.5% over pure In₂O₃ nanorods, respectively.
Conclusions:
- The In₂O₃/graphene composite effectively suppresses charge recombination.
- A built-in electric field between graphene and In₂O₃ facilitates rapid electron transfer.
- The enhanced photocatalytic performance demonstrates the potential of graphene-modified In₂O₃ for environmental remediation.
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