An in-depth exploration of eco-friendly synthesis methods for metal oxide nanoparticles and their role in photocatalysis for industrial dye degradation

Tejashwini, D.M.; Harini, H.V.; Nagaswarupa, H.P.; Naik, Ramachandra; Deshmukh, V.V.; Basavaraju, N.

doi:10.1016/j.chphi.2023.100355

Cited by 11 publications

(2 citation statements)

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“…The large surface area of nanoparticles has attracted a lot of interest recently as a potential method for degrading toxic dyes [16,17]. Recently, there has been a lot of research focused on the photocatalytic degradation of dyes using metallic nanoparticles [10,15,16]. The present study investigates, CuONPs biosynthesis by the water extract of Pleurotus cystidiosus and its biological activities such as antimicrobial and photocatalytic dye degradation activity.…”

Section: Introductionmentioning

confidence: 95%

“…Dye effluents should be reconditioned prior to discharge into the water. The large surface area of nanoparticles has attracted a lot of interest recently as a potential method for degrading toxic dyes [16,17]. Recently, there has been a lot of research focused on the photocatalytic degradation of dyes using metallic nanoparticles [10,15,16].…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial and photo dye degradative ability of copper oxide nanoparticles from Pleurotus cystidiosus

et al. 2024

Nano Ex.

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The present study deals with in vitro experiments for to develop synthesized copper oxide nanoparticles using Pleurotus cystidiosus. Mushroom-based nanoparticles, such as copper nanoparticles have become more significant because of potential biocatalytic properties, including antibacterial activity. The blue-to-brown color shift suggests CuONPs, as confirmed by absorbance maxima at 246 nm in ultraviolet spectroscopy. FTIR spectra reveal the existence of carboxyl, alcohol, and aldehyde carbon; the amine group represents the myco-synthesized copper nanoparticle. Scanning electron microscopy (SEM) nanoparticles show spherical to oval nano aggregates of 80–110 nm in size. The EDX spectrum confirms the presence of Cu at 8.00 keV in myco-synthesized copper oxide nanoparticles. The antimicrobial efficacy of produced copper oxide nanoparticles on human pathogens showed a maximum zone of inhibition against coliform bacteria such as Enterococcus faecalis (32 ± 2), Enterobacter aerogenes (30 ± 1), E. coli (28 ± 1) and least zone of inhibition about 25 ± 1 mm recorded in Streptococcus mutans. The photocatalytic activity of Congo red dye, Malachite green dye, and Remazol blue dye by copper oxide nanoparticles from Pleurotus cystidiosus was investigated, and the results showed a maximum degradation efficiency of 99.2% in Congo red within 90 min. However, moderate degradation was noted in malachite green, and Remazol blue dye has a low degradation efficiency. Thus, myco-synthesized copper oxide nanoparticles from Pleurotus cystidiosus have potent antimicrobial and photocatalytic dye degradation efficacy.

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