The effect of small addition of copper on the growth process, structure, surface charge and adsorption properties of ZnO films in the pyrolysis of dithiocarbamates

Snopok, B. A.; Zavyalova, L. V.; Tatyanenko, N. P.; Gudymenko, A. I.; Svechnikov, George S.; Klad’ko, V. P.; Belyaev, A. E.

doi:10.1039/d1ma00199j

Cited by 4 publications

(1 citation statement)

References 129 publications

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“…Thus, the diffraction pattern suggests that the main copper doping mechanism can be described by the interstitially Cu 2+ inserted into the host lattice along with the reduced substitutional doping, as proposed in a previous work 38,41,42 .…”

Section: Resultssupporting

confidence: 67%

Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals

et al. 2021

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Ciprofloxacin hydrochloride (CIPRO) is considered an emerging pollutant in aquatic environments with the capacity to disseminate antibiotic resistance. Considering the pro-oxidant potential of ZnO and Cu-doped ZnO (Cu-ZnO) wurtzite crystals, the potential Ciprofloxacin photodegradation by these materials was investigated. CIPRO titration with ZnO and Cu-ZnO promoted the formation of zinc complexes and ~4% antibiotic adsorption. The carboxylic groups of CIPRO can complex Zn 2+ by promoting the nanoetching of ZnO and Cu-ZnO crystallite surfaces. The alkaline interfaces provided by ZnO create a microenvironment favorable for Zn 2+ chelation by CIPRO carboxylates. The photodegradation degree was similar for CIPRO and CIPRO-Zn under UV light, as revealed by UV-visible spectroscopy and FTIR. Therefore, the ZnO and Cu-ZnO crystals contributed to the formation of CIPRO-Zn rather than the photo-oxidative degradation of the antibiotic. Considering that CIPRO-Zn chelates disfavor bacterial selection for resistance, the treatment of CIPRO-contaminated effluents with ZnO and Cu-ZnO can facilitate desirable metal chelation without impairing photodegradation.

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Section: Resultssupporting

confidence: 67%

Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals

et al. 2021

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Synthesis, structural, molecular docking, and in vitro biological activities of Cu-doped ZnO nanomaterials

El-Sayed,

Aboulthana,

Sherief

et al. 2024

Sci Rep

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Copper-doped ZnO nanoparticles with the formula Zn1−x(Cu)O, where x = 0.0, 0.03, 0.05, and 0.07 were produced using the co-precipitation process. Physical, chemical, and structural properties were properly examined. Powdered X-ray diffraction (P-XRD) patterns revealed the formation of hexagonal wurtzite crystal structure in all samples, through atomic substitutional incorporation in the Cu-doped ZnO lattice. The presence of Cu ions and their dissolution in the host ZnO crystal structure was supported by FT-IR spectra. HR-TEM images were used to assess the average size, morphology, and shape regularity of the synthesized samples. The form and homogeneity of the ZnO changed when Cu ions were substituted, as evidenced by FE-SEM/EDX analysis. The presence of copper signals in the Cu-doped samples indicates that the doping was successful. The decrease in zeta potential with an increased copper doping percentage designates that the nanoparticles (NPs) are more stable, which could be attributed to an increase in the ionic strength of the aqueous solution. The synthesized NPs were evaluated for their substantial in vitro antioxidant properties. In addition, the antimicrobial efficacy of the materials was tested against pathogenic microorganisms. Regarding the anti-diabetic activity, the 7Cu ZnO sample showed the highest inhibitory effect on the α-amylase enzyme. No variations were observed in the activities of the acetylcholinesterase enzyme (AChE) and proteinase enzymes with ZnO and samples doped with different concentrations of Cu. Therefore, further studies are recommended to reveal the in-vitro anti-diabetic activity of the studied doped samples. Finally, molecular docking provided valuable insights into the potential binding interactions of Cu-doped ZnO with α-amylase, FabH of E. coli, and Penicillin-binding proteins of S. aureus. These outcomes suggest that the prepared materials may have an inhibitory effect on enzymes and hold promise in the battle against microbial infections and diabetes.

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Species of Gold(III) Binding by Binuclear Zinc Dipropyldithiocarbamate: Supramolecular Self-Organization and Thermal Behavior of Ionic Complexes [Au(S2CNPr2)2]2[ZnCl4] and [Au(S2CNPr2)2]2[AuCl4][AuCl2]

et al. 2023

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The effect of small addition of copper on the growth process, structure, surface charge and adsorption properties of ZnO films in the pyrolysis of dithiocarbamates

Abstract: Highly textured ZnO films are fabricated, the outer polar surface of which is decorated with copper complexes. The segregation of copper on the surface during growth is attributed to the manifestation of the Jahn–Teller effect.

Cited by 4 publications

References 129 publications

Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals

Photodegradation of Ciprofloxacin-Zinc Complexes Produced at the Interface of ZnO and Cu-Doped ZnO Crystals

Synthesis, structural, molecular docking, and in vitro biological activities of Cu-doped ZnO nanomaterials

Species of Gold(III) Binding by Binuclear Zinc Dipropyldithiocarbamate: Supramolecular Self-Organization and Thermal Behavior of Ionic Complexes [Au(S2CNPr2)2]2[ZnCl4] and [Au(S2CNPr2)2]2[AuCl4][AuCl2]

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