Synergistic augmentation and fundamental mechanistic exploration of β-GaO-rGO photocatalyst for efficient CO reduction

• Published in: Nanoscale advances 2024-09, Vol.6 (18), p.4611-4624
• Main Authors: Jung, Hye-In, Choi, Hangyeol, Song, Yu-Jin, Kim, Jung Han, Yoon, Yohan
• Format: Article
• ISSN: 2516-0230
• DOI: 10.1039/d4na00408f

We explore the novel photodecomposition capabilities of β-Ga 2 O 3 when augmented with reduced graphene oxide (rGO). Employing real-time spectroscopy, this study unveils the sophisticated mechanisms of photodecomposition, identifying an optimal 1 wt% β-Ga 2 O 3 -rGO ratio that substantially elevates the degradation efficiency of Methylene Blue (MB). Our findings illuminate a direct relationship between the photocatalyst's composition and its performance, with the quantity of rGO synthesis notably influencing the catalyst's morphology and consequently, its photodegradation potency. The 1 wt% β-Ga 2 O 3 -rGO composition stands out in its class, showing a notable 4.7-fold increase in CO production over pristine β-Ga 2 O 3 and achieving CO selectivity above 98%. This remarkable performance is a testament to the significant improvements rendered by our novel rGO integration technique. Such promising results highlight the potential of our custom-designed β-Ga 2 O 3 -rGO photocatalyst for critical environmental applications, representing a substantial leap forward in photocatalytic technology. We explore the novel photodecomposition capabilities of β-Ga 2 O 3 when augmented with reduced graphene oxide (rGO).