Green synthesis of hierarchical copper oxide (CuO) microleaf bundles was performed using Hibiscus cannabinus (H.cannabinus) leaf extract and characterized through X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDAX), transmission electron microscopy ...
the presence of Co ions in the sample is observed by a stretch at 690 cm−1on the FTIR spectrum. This peak corresponds to a specific vibration related to cobalt incorporation into the copper oxide lattice [42]. The
Additionally, FTIR analysis indicated the presence of H2O and CO2 impurities originating from the surrounding environment. This occurrence is attributed to the oxidation of the nanoparticle surface, leading to the formation of metal hydroxides or oxide-hydroxide species capable of absorbing water molecules...
FTIR spectrum of the chemically synthesized CuO NPs. 3.5. EDX Analysis Figure 5 displays the findings of an elemental composition analysis utilizing EDX spectroscopy of the generated CuO NPs. The three intense characteristic peaks for Cu at 1, 8.1, and 9 keV were observed. Another strong and...
FTIR spectrum of the chemically synthesized CuO NPs. 3.5. EDX Analysis Figure 5 displays the findings of an elemental composition analysis utilizing EDX spectroscopy of the generated CuO NPs. The three intense characteristic peaks for Cu at 1, 8.1, and 9 keV were observed. Another strong and...
Copper oxide nanosheets (CuO) Spodoptera littoralis (Lepidoptera: Noctuidae) The third-instar and fifth-instar groups’ cumulative larval mortality reached 48.3% ± 0.43% and 46.6% ± 1.0% when fed for 1 day, and it increased to 97.6% ± 1.3% and 100% when fed for more than 4 days Morta...
The peak at 3402 cm-1 owing to O–H and 615 cm-1 due to Cu–O are seen in the FTIR spectrum of Copper Oxide nanoparticles produced by Leucas aspera [51]. Table 1 shows the numerous linkages produced in the synthesised Cu/CuO based nanomaterial from various plant extracts. 4.3. XRD ...
Characterization ofPhormidium sp. derived CuONPs; (a) UV–visible spectrum; (b) FTIR spectrum; (c) X-ray diffractogram; (d) SEM analysis at a direct magnification of × 10 000; (e) EDX graph and (f) TEM micrograph. The inset in panel (a) depicts the green color of cell extra...
The UV–visible spectrum of CuO showed the absorption peak at 271 nm (Fig. 3) which was matched with the expected value of copper oxide nanoparticles [5]. Figure 4 shows the Fourier transform infrared spectroscopy (FTIR) peaks of Synthesis of CuO nanoparticles using tea leaf extract Copper ...
FT-IR spectrum of (A) the supernatant ofB. coagulans, (B) BC-CuONPs, (C) XPS analysis of BC-CuONPs. Full size image In the FTIR spectrum of reduced CuONPs with bacterial supernatant biomolecules, the peak in the region of 3100–3680 cm−1is attributed to the amide or amine function...