فهرس المقالات CuO NPs

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  1 - Imidazolium Hydrogen Sulphate Supported on Copper Oxide Nanoparticles as an efficient simple Heterogeneous Acidic Catalyst for Multi-component Synthesis of 1, 4- dihydro Pyrano [2, 3-c] pyrazoles Derivatives
  Elham Fadavipoor Rashid Badri
  Si-Im/HSO4(1-methyl-3-(3-(trimethoxysilyl) propyl) imidazolium hydrogen sulphate functionalized Copper oxide nanoparticles(CuO NPs )as a novel supporting ionic liquid was prepared and characterized by FT-IR spectroscopy, FE-SEM, XRD, TGA, and EDX techniques. It was used أکثر

  Si-Im/HSO4(1-methyl-3-(3-(trimethoxysilyl) propyl) imidazolium hydrogen sulphate functionalized Copper oxide nanoparticles(CuO NPs )as a novel supporting ionic liquid was prepared and characterized by FT-IR spectroscopy, FE-SEM, XRD, TGA, and EDX techniques. It was used as a recyclable catalyst for the one-pot, three-component synthesis of 1, 4- dihydro Pyrano [2, 3-c] pyrazoles derivatives. The results showed that the catalyst was very efficient, and in addition, at the end of the reaction the catalyst could be easily isolated and reused for the next reaction without any appreciable loss of its catalytic activity. The reused catalyst was also characterized by the FE-SEM and EDX techniques. تفاصيل المقالة
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  2 - Investigation on the Photocatalytic and Antibacterial Activities of Green synthesized Cupric Oxide Nanoparticles using Clitoria ternatea
  S. Prabhu T. Daniel Thangadurai P. Vijai Bharathy Pon. Kalugasalam
  10.30495/ijc.2022.689547
  Green synthesis of cupric oxide nanoparticles (CuO NPs) has been promoted as an environmentally-friendly, cost-effective and high yield method. The CuO NPs have been synthesized by reducing copper sulphate using an aqueous flower extract of Clitoria ternatea. The UV-vis أکثر

  Green synthesis of cupric oxide nanoparticles (CuO NPs) has been promoted as an environmentally-friendly, cost-effective and high yield method. The CuO NPs have been synthesized by reducing copper sulphate using an aqueous flower extract of Clitoria ternatea. The UV-visible peak observed at 251 nm confirmed the formation of CuO NPs. The optical bandgap energy value of CuO NPs was found to be 2.16 eV. The presence of Cu-O band at 490 cm−1 in the FTIR spectrum confirms the formation of the CuO NPs. The XRD exhibits monoclinic structure with an average crystallite size of 17.46 nm. The negative zeta potential value (-17.7 mV) demonstrated the stability of CuO NPs. The formation of agglomerated and roughly spherical NPS was shown by FESEM images. As seen in the HRTEM images, the nanostructure appears to be aggregated CuO NPs, and the average size of the particle was found to be 18 nm that matched with the XRD analysis. The EDX analysis showed presence of Cu (96.19%) and O (3.81%) in the spectrum. The CuO NPs exhibit significant antibacterial activity against Gram +Ve Staphylococcus aureus and Gram –Ve Escherichia coli bacteria. Finally, the synthesized CuO nanostructures demonstrate the photocatalytic degradation of Direct Red (DR) and Crystal Violet (CV) dyes under sunlight. The efficiency of degradation within 150 min was determined to be 65% and 88.3%, respectively for DR and CV. This effective removal method under sunlight may support a cost-effective method for degradation of DR and CV dyes from wastewater. تفاصيل المقالة