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Sustainable Approach for Enhanced Photocatalytic Degradation of Dyes/Drugs using Neolamarckia cadamba-mediated TiO 2 -rGO NCs
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DOI：10.1039/D6NJ00378H.png)
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Abstract
En 中文
In the present study; we reported the green synthesis of titanium dioxide–reduced graphene oxide nanocomposites (TiO₂–rGO NCs) using fruit extract of Neolamarckia cadamba as bioreductant. The extract simultaneously reduces titanium precursors and graphene oxide; yielding a multifunctional photocatalyst. Comprehensive characterization via spectroscopic and microscopic techniques was performed to analyze the nanocomposite’s elemental composition; chemical states; morphology; particle size distribution; and porosity. Photocatalytic performance was evaluated under visible-light irradiation; demonstrating efficient and sustainable degradation of the organic dyes Eriochrome Black T (EBT; ~93.41%); Indigo Carmine (IC; ~89.6%); and Rhodamine B (RhB; ~91.1%). Furthermore; the TiO₂–rGO NCs exhibited notable degradation efficiencies toward pharmaceutical drugs; including ciprofloxacin (CIP; ~91.86%); ibuprofen (IBU; ~85.8%); and tetracycline hydrochloride (THC; ~90.6%) under visible light irradiation. These results highlight the potential of biosynthesized TiO₂–rGO NCs as highly effective; sustainable materials for wastewater remediation and environmental protection.
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