Sonochemical fabrication of gradient antibacterial materials based on Cu-Zn alloy

Sabbouh, Mirna; Никитина, А. А.; Rogacheva, Elizaveta; Nebalueva, Anna; Shilovskikh, Vladimir V.; Sadovnichii, R. V.; Nikolaev, K. R.; Kraeva, Lyudmila; Ulasevich, Sviatlana A.; Skorb, Ekaterina V.

doi:10.1016/j.ultsonch.2022.106247

Cited by 3 publications

(3 citation statements)

References 44 publications

(67 reference statements)

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“…[ 27 ] The two Cu 2p 3/2 peaks (Figure 3c) are located at 932.12 and 934.45 eV and have the characteristics of two satellite peaks, indicating the presence of Cu + and Cu 2+ , as well as the features of two satellite peaks, which are attributed to Cu 2p 1/2 electrons of Cu 2+ ions in the CuO‐Ag nanoporous material. [ 28 ] The O 1s spectrum is in Figure 3d, composed of three deconvoluted peaks at 531.95, 547.81, and 553.7 eV. The first peak is the feature of metal oxide (OM) corresponding to O 2− ions with transition metal oxides, while other peaks are attributed to the OH group and water absorbed on the material surface.…”

Section: Resultsmentioning

confidence: 99%

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Mustaqeem,

Naikoo,

Ahmad

et al. 2023

Adv Materials Technologies

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Designing a photoredox material with highly efficient organic pollutant degradation ability and cost effectiveness is challenging. Conventional photoredox materials have inherent drawbacks, including high cost, low photon‐to‐electron conversion rates, and low effective surface area. Herein, an alternative nanoporous semiconductor/metal hybrid (CuO‐Ag) photoredox catalysis material with all solution processes is developed to circumvent these shortcomings. The obtained results evidently indicate that the loading of Ag onto the CuO nanoporous material leads to improving the Brunauer–Emmett–Teller (BET) specific surface area (48.369 m2 g−1) with pore size (36.436 nm) and pore's volume (0.301 cm3 g−1) of CuO‐Ag nanoporsity. The improved semiconductor/metal hybrid surface area and porosity significantly enhance the photocatalytic efficiency (i.e., ≈99% degradation of RhB and 4‐NP), owing to the synergy effect. Additionally, the decoration of metal nanostructure enables to enhance photo‐absorption and the semiconductor/metal heterojunction is useful to enhance photo‐excited electron and hole charge carriers separation. Such structure‐designed CuO‐Ag nanoporous materials maintain high photostability during long light irradiation conditions. The photocatalytic efficiency is better than all published reports. This strategy using hybrid semiconductor/metal nanoporous material with high surface area and greater porosity improved activity significantly offers a facile guideline for targeting photoredox catalysis applications.

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Section: Resultsmentioning

confidence: 99%

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Mustaqeem,

Naikoo,

Ahmad

et al. 2023

Adv Materials Technologies

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“…In this regard, the physical properties, such as stiffness, melting temperature, and polarity of the substrate, have a significant influence on the response to ultrasonic waves and the accompanying surface modification [143] . Sonochemical surface functionalization has been applied to a variety of substrates, including polymers, graphene, ceramics, and metals [144] , [145] , [146] , [147] . For the latter, the characteristics of their reactivity, and melting points play an important role.…”

Section: Fields Of Sonochemistrymentioning

confidence: 99%

Sono-processes: Emerging systems and their applicability within the (bio-)medical field

Siebenmorgen,

Poortinga,

van Rijn

2023

Ultrasonics Sonochemistry

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“…Ultrasonic surface treatment of brass is for interest mostly due to bactericidal properties of brass. − Ultrasonic cavitation of the surface of brass microparticles changes the surface roughness and chemical composition and leads to fraction separation. , Thus, nanostructured brass can be used for new applications depending on the composition and structural properties. Such structures can be obtained by ultrasonic synthesis ,, and often studied with atomic force microscopy (AFM).…”

Section: Introductionmentioning

confidence: 99%

AFM-Topological Data Analysis of Brass after Ultrasonic Surface Modification

Zhukov,

Aglikov,

Sabboukh

et al. 2023

ACS Appl. Eng. Mater.

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Polished brass alloy plate samples were treated by ultrasound in an alkaline buffer at different concentrations and sonication amplitudes. Sample topography was studied by atomic force microscopy and processed by algorithms of topological data analysis. Persistence diagrams, barcodes, autocorrelation functions, and spatial distribution of heights (min–max regions) were constructed. The isotropy/anisotropy of the surface, the level of roughness, and grain size distribution were analyzed for all samples. The brass alloy samples with various grain sizes can be useful as structured coatings with controlled bactericidal effects due to the presence of copper.

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Sonochemical fabrication of gradient antibacterial materials based on Cu-Zn alloy

Cited by 3 publications

References 44 publications

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Facile Solution‐Processed Semiconductor/Metal Hybrid Nanoporous Materials; their Highly Photoredox Catalytic Power

Sono-processes: Emerging systems and their applicability within the (bio-)medical field

AFM-Topological Data Analysis of Brass after Ultrasonic Surface Modification

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