May 12, 2025 Journal article Open Access

Endeshaw Beko Legesse

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    <subfield code="a">GREEN SYNTHESIS OF COPPER DOPED TIN OXIDE  GRAPHITE CARBON NITRIDE NANOCOMPOSITE FOR  VISIBLE-LIGHT PHOTOCATALAYTIC DEGRADATION OF  METHYLENE BLUE DYE</subfield>
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    <subfield code="a">&lt;p&gt;Green synthesis approach was utilized to prepare copper-doped tin oxide (CuSnO2)/graphite carbon nitride (g-C3N4) nano composite for the visible-light photocatalytic degradation of methylene blue (MB) dye. The composite material was prepared using environmentally friendly methodsby using plant extract. Maximum methylene blue(MB) photocatalytic degradation was observed with the copper doped tin oxide (5% Cu-SnO2 ) NPs compared to other (1,2,3, and 4%) Cu-SnO2 nano particles. The 5% Cu-SnO2 NPs were then homogenized with g-C3N4 to develop nanocomposite of Cu-SnO2/g-C3N4 with the most significant degree of MB degradation. The synthesized samples were identified by modern characterization methods such as FT-IR, SEM, UV-visible, and XRD. The Cu-SnO2/g-C3N4 composites showed a significant increase in MB degradation and degraded 97.6% of MB after 60 minute of simulated sun light irradiation. Cu-SnO2/g-C3N4 nano composite catalyst has been found to exhibit a free radical scavenging activity of 79.9% in a DPPH solution, which is comparable with the free radical scavenging activity of ascorbic acid, the standard free radical scavenger. The results showed that Cu-SnO2/g-C3N4 nanocomposite has the potential to be used in wastewater treatment applications, addressing environmental concerns related to MB dye contamination in water bodies.&lt;/p&gt;</subfield>
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