Synergetic execute pressure, temperature on mixed Ac/Ag@CuO and its multi properties of solar light elucidation and antibacterial activity by hydrothermal technique

Bharathi, E. Vijaya; Sivakumari, G.; Kamalakkannan, J.; Karthikeyan, B.; Senthilvelan, S.

doi:10.1016/j.mset.2020.02.002

Cited by 12 publications

(6 citation statements)

References 39 publications

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“…The pristine CuO film exhibited Raman peaks at approximately 297.44 cm −1 , 343.92 cm −1 , and 629.89 cm −1 , whereas the corresponding Raman peaks in the iodine-doped CuO film appeared at approximately 296.93 cm −1 , 343.41 cm −1 , and 629.40 cm −1 . As these wavenumbers of Raman characteristic peaks are similar to those reported in the literature, we can assign the peak at 297.44 cm −1 /296.93 cm −1 to the A g mode and the peaks at 343.92 cm −1 /343.41 cm −1 and 629.89 cm −1 /629.40 cm −1 to the B g modes of CuO [16,17]. Importantly, the iodine doping of CuO causes shifts in Raman peak positions towards the low wavenumbers.…”

Section: Resultssupporting

confidence: 86%

Effects of Iodine Doping on Electrical Characteristics of Solution-Processed Copper Oxide Thin-Film Transistors

Lee

Zhang²,

Bae

et al. 2021

Materials

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In order to implement oxide semiconductor-based complementary circuits, the improvement of the electrical properties of p-type oxide semiconductors and the performance of p-type oxide TFTs is certainly required. In this study, we report the effects of iodine doping on the structural and electrical characteristics of copper oxide (CuO) semiconductor films and the TFT performance. The CuO semiconductor films were fabricated using copper(II) acetate hydrate as a precursor to solution processing, and iodine doping was performed using vapor sublimated from solid iodine. Doped iodine penetrated the CuO film through grain boundaries, thereby inducing tensile stress in the film and increasing the film’s thickness. Iodine doping contributed to the improvement of the electrical properties of the solution-processed CuO semiconductor including increases in Hall mobility and hole-carrier concentration and a decrease in electrical resistivity. The CuO TFTs exhibited a conduction channel formation by holes, that is, p-type operation characteristics, and the TFT performance improved after iodine doping. Iodine doping was also found to be effective in reducing the counterclockwise hysteresis in the transfer characteristics of CuO TFTs. These results are explained by physicochemical reactions in which iodine replaces oxygen vacancies and oxygen atoms through the formation of iodide anions in CuO.

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Section: Resultssupporting

confidence: 86%

Effects of Iodine Doping on Electrical Characteristics of Solution-Processed Copper Oxide Thin-Film Transistors

Lee

Zhang²,

Bae

et al. 2021

Materials

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“…Furthermore, the band noticed at 1106.76 cm −1 could be assigned to the C-N stretching of aliphatic amines, which clarified the proteins of plant metabolites in the capping of the biosynthesized AgNPs, contributing to their stability and preventing their agglomeration [63]. The peak at 584.97 cm −1 could be assigned to the Ag-O stretching, as reported in previous reports [64,65]. Together, the previous findings supported the notion that the functional groups of AgNPs, such as alcohols, phenols, aldehydes, carboxylic compounds, amides, and amines, helped reduce, stabilize, and cap the biofabricated AgNPs, thereby enhancing their stability and preventing agglomeration.…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir) Investigatio...supporting

confidence: 79%

Green Biofabrication of Silver Nanoparticles of Potential Synergistic Activity with Antibacterial and Antifungal Agents against Some Nosocomial Pathogens

et al. 2023

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Nosocomial bacterial and fungal infections are one of the main causes of high morbidity and mortality worldwide, owing to the high prevalence of multidrug-resistant microbial strains. Hence, the study aims to synthesize, characterize, and investigate the antifungal and antibacterial activity of silver nanoparticles (AgNPs) fabricated using Camellia sinensis leaves against nosocomial pathogens. The biogenic AgNPs revealed a small particle diameter of 35.761 ± 3.18 nm based on transmission electron microscope (TEM) graphs and a negative surface charge of −14.1 mV, revealing the repulsive forces between nanoparticles, which in turn indicated their colloidal stability. The disk diffusion assay confirmed that Escherichia coli was the most susceptible bacterial strain to the biogenic AgNPs (200 g/disk), while the lowest sensitive strain was found to be the Acinetobacter baumannii strain with relative inhibition zones of 36.14 ± 0.67 and 21.04 ± 0.19 mm, respectively. On the other hand, the biogenic AgNPs (200 µg/disk) exposed antifungal efficacy against Candida albicans strain with a relative inhibition zone of 18.16 ± 0.14 mm in diameter. The biogenic AgNPs exposed synergistic activity with both tigecycline and clotrimazole against A. baumannii and C. albicans, respectively. In conclusion, the biogenic AgNPs demonstrated distinct physicochemical properties and potential synergistic bioactivity with tigecycline, linezolid, and clotrimazole against gram-negative, gram-positive, and fungal strains, respectively. This is paving the way for the development of effective antimicrobial combinations for the effective management of nosocomial pathogens in intensive care units (ICUs) and health care settings.

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“…These recommend the ⋅ OH radicals formed was straight relative to photocatalytic degradation of doped Ag-ZrO 2 catalyst. Consequently, the maximal photocatalytic activity produced in the energetic species of doped Ag-ZrO 2 catalyst than additional undoped ZrO 2 species (Bharathi et al 2020;Herrera et al 2013).…”

Section: Discovery Of ⋅ Oh Radical and Cod Analysismentioning

confidence: 99%

Hydrothermal implement with supporting of semiconductor ZrO2 (ZO), Ag doped ZrO2 (AZO) nanomaterial and its astrophysical, UV photocatalytic employment on Rh6G dye

et al. 2020

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Greatly secure semiconducting materials of Ag doped ZrO 2 (AZO) nanoparticles have been prepared by the use of hydrothermal and precipitation methods. Photocatalytic nanoparticles were characterized by UV-DRS, XRD, FT-IR and HR-SEM, HR-TEM, PL and CV techniques. Admirable improvement in the direct band gap of 4.61-4.58 eV was achieved as a result of doping. XRD diffraction pattern established the arrangement of monoclinic and tetragonal phase. The crystallite size and specific surface area were resoluted as 37.51 nm and 50.44 g/cm 3 . In addition, microscopic observation shows the Ag doped ZrO 2 has achieved agglomeration and the particle diameter range between less than 100 nm of 5.81 and 7.65 1/nm. Luminescence and cyclic voltammetry are given additional supports towards optoelectronic characterization of Ag doped zirconium dioxide nanomaterials. The obtained ZO/AZO nanoparticles persist towards cationic dye of Rh6G at outfitted parameters of pH medium 9 implemented effectively in UV and solar light. The photodegradation of Rh6G dye is well described by pseudo-first order kinetics and high quantum yield. The Langmuir-Hinshel wood mechanism of photocatalytic effect of Ag doped Zirconium oxide nanomaterial have been discussed sucessfully and COD analysis was investigated. In this study, AZO material has to be proficient and potential remediated for contaminated water.

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Synergetic execute pressure, temperature on mixed Ac/Ag@CuO and its multi properties of solar light elucidation and antibacterial activity by hydrothermal technique

Cited by 12 publications

References 39 publications

Effects of Iodine Doping on Electrical Characteristics of Solution-Processed Copper Oxide Thin-Film Transistors

Effects of Iodine Doping on Electrical Characteristics of Solution-Processed Copper Oxide Thin-Film Transistors

Green Biofabrication of Silver Nanoparticles of Potential Synergistic Activity with Antibacterial and Antifungal Agents against Some Nosocomial Pathogens

Hydrothermal implement with supporting of semiconductor ZrO2 (ZO), Ag doped ZrO2 (AZO) nanomaterial and its astrophysical, UV photocatalytic employment on Rh6G dye

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