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Updated: Jun 23, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Novel hierarchical Mn x O y -functionalized graphene for enhanced visible-light photodegradation performance
Pham Huong Quynh1, Ta Thi Huong1, Tran Y Doan Trang1
1Hanoi University of Industry 298 Cau Dien Street, Bac Tu Liem District Hanoi 100000 Vietnam phuongntt@haui.edu.vn.
Abstract:
Novel hierarchical Mn x O y -functionalized graphene photocatalysts were successfully synthesized by simultaneous precipitation combined with electrochemical plasma methods. Comprehensive characterization, such as XRD, Raman, FT-IR, XPS, SEM, and TEM results, showed the formation of hierarchically structured Mn x O y -graphene nanocomposites (GMP) via a change in the pH of the initial solution. The visible-light photodegradation performance of the as-prepared GMP was significantly enhanced compared to that of their counterparts owing to the synergistic effects of graphene and Mn x O y . Specifically, the GMP10 sample displayed the highest efficiency for methylene blue decomposition, reaching 84.5% after 150 minutes of illumination. The stability of the material was confirmed through four consecutive degradation cycles, during which the efficiency of methylene blue degradation decreased by 6.9% (from 84.5% to 77.6%).
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