Zinc chromium oxide (Cr/ZnO, 5wt.%) was prepared by a facile chemical co-precipitation route. The structure, composition, and chemical bonding were analyzed using X-ray diffraction (XRD), Energy dispersive X-ray spectroscopy (EDX), and Fourier-transform infrared spectroscopy (FTIR) indicating that chromium ions were integrated the host framework to form Cr/ZnO nanocomposite. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) micrographs showed comb-shaped nanoparticles with an average size 20 nm and large surface area. The energy gap of the thin films was estimated from T% and R% measurements which exhibit a strong optical absorption edge close to the visible spectrum. The insecticidal activity of the synthesized nanocombs against C. pipiens larvae was evaluated with LC 50 (30.15 ppm) and LC 90 (100.22 ppm). Besides, the nanocomposite showed high antibacterial performance against gram-positive bacteria (Bacillus subtilis) and gram-negative bacteria (Proteus vulgaris) with inhibition zones 21.9 and 19 mm, respectively.
Keyphrases
- electron microscopy
- quantum dots
- reduced graphene oxide
- solid phase extraction
- oxide nanoparticles
- bacillus subtilis
- visible light
- high resolution
- gold nanoparticles
- simultaneous determination
- aedes aegypti
- staphylococcus aureus
- mass spectrometry
- room temperature
- ionic liquid
- liquid chromatography
- essential oil
- gram negative
- gas chromatography mass spectrometry
- highly efficient
- photodynamic therapy
- magnetic resonance imaging
- aqueous solution
- computed tomography
- gas chromatography
- water soluble
- high speed
- drosophila melanogaster
- solid state
- walled carbon nanotubes