Hydrothermal-assisted synthesis and characterization of MWCNT/copper oxide nanocomposite for the photodegradation of methyl orange under direct sunlight

Shibu, M.C.; Benoy, M.D.; Kumar, G. Suresh; Duraimurugan, J.; Vasanthakumar, V.; Shkir, Mohd.; AL-Otaibi, Omar Abdullah Mihmas AL-Habarde

doi:10.1016/j.diamond.2023.109778

Cited by 8 publications

(1 citation statement)

References 52 publications

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“… S. no. Photocatalyst Additive amount MO concentration Degradation rate (%) Irradiation time References 1 CuO/ZnO 50 mg 10 ppm 89 120 min 57 2 CuO 0.2 g 100 µM/100 mL 70 240 min 34 3 MWCNT/CuO 100 mg 50 mg/100 ml 92 6 Hrs 58 4 CuO/Cu 2 O–ZnO 25 mg 10 ppm 97 45 min 32 5 CuO 100 mg 10 mg/L 84% 120 min This work …”

Section: Resultsmentioning

confidence: 97%

Copper oxide nanoparticles fabricated by green chemistry using Tribulus terrestris seed natural extract-photocatalyst and green electrodes for energy storage device

Meena,

Kumaraguru,

Sami veerappa

et al. 2023

Sci Rep

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Nanobiotechnology is a unique class of multiphase and recently become a branch of contemporary science and a paradigm shift in material research. One of the two main problems facing the field of nanomaterial synthesis is the discovery of new natural resources for the biological production of metal nanoparticles and the absence of knowledge about the chemical composition of bio-source required for synthesis and the chemical process or mechanism behind the production of metal nanoparticles presents the second difficulty. We reported template-free green synthesized copper oxide nanoparticles using Tribulus terrestris seed natural extract without any isolation process. XRD, TEM, SEM, UV–Vis, DLS, zeta potential, and BET evaluated the synthesized metal nanoparticle. The TEM analysis confirmed that the CuO NPs are well dispersed and almost round in shape with an average size of 58 nm. EDAX confirms that copper is the prominent metal present in the nanomaterial. The greener fabricated copper oxide nanoparticle was employed to degrade methyl orange dye, almost 84% of methyl orange was degraded within 120 min. The outcomes demonstrated the nanomaterial’s effective breakdown of contaminants, highlighting their potential for environmental rehabilitation. The electrochemical investigation of the CuO NPs was utilized for supercapacitor application. An appreciable value of specific capacitance is 369 F/g specific capacitances with 96.4% capacitance retention after 6000 cycles. Overall, the results of the current study show that the biologically produced copper oxide nanoparticles have intriguing uses as photocatalysts for treating water contaminants and are suitable for energy storage devices.

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