Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 155, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.inoche.2023.110893
Keywords
Photocatalytic; ZnO-ZnMoO4; Hydrothermal green synthesis; Mentha x piperita; Rhodamin B
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In this research, ZnO-ZnMoO4 nanocomposites were successfully synthesized using green synthesis hydrothermal method with Mentha x piperita leaf extract. The photocatalytic activity of ZnO was enhanced with the addition of ZnMoO4, leading to improved degradation of Rhodamine B dye under visible light.
ZnO has excellent photocatalytic activity under UV light, but its photocatalytic activity under visible light is relatively low due to its wide band gap. Modification of ZnO to a composite with ZnMoO4, which has a band gap energy of 2.61 eV, triggers heterojunction photocatalytic reactions under visible light. Here in this research, ZnO-ZnMoO4 nanocomposites have been successfully synthesized using the green synthesis hydrothermal method with Mentha x piperita leaf extract containing alkaloids as a source of weak bases and other secondary metab-olites as capping agents. The development of green synthesis methods in this study aims to reduce the use of hazardous and toxic materials. The synthesized photocatalysts have been fully characterized and evidence of increased photocatalytic activity of ZnO/ZnMoO4 composites is based on the degradation of Rhodamine B (RhB) dye in visible light. The results showed that the degradation of RhB by ZnO/ZnMoO4 nanocomposites could reach 83.7 %, and this was better than using ZnO which only reached 13.9 %.
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