Wettability of Graphene Oxide/Zinc Oxide Nanocomposite on Aluminum Surface Switching by UV Irradiation and Low Temperature Annealing

Majidi, Samaneh; Jaleh, Babak; Mohazzab, Bahareh Feizi; Eslamipanah, Mahtab; Moradi, Aida

doi:10.1007/s10904-020-01465-1

Cited by 18 publications

(10 citation statements)

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“…The coating has shown a hydrophobic core and has established a hydrophilic transition with UV irradiation. It is known that GO behaves as hydrophilic, 49 but here it has demonstrated a hydrophobic nature, which may be due to the reduction of GO to RGO with LASER action, which is evidence of the XPS study. Hence, the composite coating has shown less electrical resistivity while the weight proportion of Ag NPs is elevated to 5 wt % (Figure 19d).…”

Section: Protective Coatings For Marine and Biomedical Applications 4...supporting

confidence: 57%

“…Transition-metal oxides have been deposited along with graphene, because of their extensive properties in photocatalytic, energy storage materials, transparent, and photosensitive properties. 33,44,45,48,49 2.3.2. Electrode Codeposition.…”

Section: Electrochemical Methodsmentioning

confidence: 99%

“…EPD coating of graphene-based composites also has been a research interest. Transition-metal oxides have been deposited along with graphene, because of their extensive properties in photocatalytic, energy storage materials, transparent, and photosensitive properties. ,,,, …”

Section: Fabrication Methodsmentioning

confidence: 99%

“…20,58,89,98 The reversible property of wettability of ZnO/GO coating is studied by using UV radiation as ZnO is sensitive to radiation. 49 Photocatalytic and biosensing application of GRM-based coatings prepared via spray deposition, 36 CVD 99 electrochemical depositions, 100−103 and dip-coating 104 have been explored. Coatings of GRM-based composites composed of transition metals like Fe, Zn, Ni, Co, etc., are reported with superior properties.…”

Section: Applicationsmentioning

confidence: 99%

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An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

Polai

Satpathy

Jena

et al. 2022

Ind. Eng. Chem. Res.

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Carbon-based nanostructures and their two-dimensional nanosheets have emerged because of their extraordinary properties. These graphite-derived nanosheets are graphene oxide (GO), reduced graphene oxide (RGO), and graphene. They are also known as graphene-related materials (GRMs). Attempts have been made for their broad uses in numerous applications such as energy storage (ES) devices, protective coating layers, current collectors, electrode materials, photocatalytic and sensing applications, and dispersoids to enhance the mechanical strength and thermal conductivity. However, the surface coating of these GRMs has been dominating and challenging domain in the preparation of composites. The outstanding properties of GRMs, such as ample surface area due to the high aspect ratio, hydrophilic nature due to hydroxyl groups, high tensile strength and flexibility, ultimate charge carrier mobility, and elevated thermal conductivity, have attracted substantial interest in the coating industry. The ecofriendliness and nontoxicity of these GRM-based biofilms act as a unique ingredient in their uses. Hence, fabricating such GRM coating materials conventionally and cost-effectively on supporting substrates have broad applications. The present work summarizes different GRM-based coating processes using various deposition methods, structural characterization techniques, and promising applications. The development of GRMs and GRM-assisted materials, their coating processes on the substrate, and diverse applications have been thoroughly reviewed and discussed. The outlook, challenges, and future perspectives are highlighted.

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Section: Protective Coatings For Marine and Biomedical Applications 4...supporting

confidence: 57%

Section: Electrochemical Methodsmentioning

confidence: 99%

Section: Fabrication Methodsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

See 2 more Smart Citations

An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

Polai

Satpathy

Jena

et al. 2022

Ind. Eng. Chem. Res.

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“…To change the wettability, various techniques have been used for the modification of surfaces such as heat treatment, chemical methods, UV–Vis irradiation, and laser/plasma treatment. According to some reports, the presence of semiconductor materials such as ZnO and TiO 2 NPs is effective in wettability improvement [ 20 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

et al. 2022

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Polycarbonate (PC)-ZnO films with different percentages of ZnO were prepared by a solution stirring technique and subjected to ultraviolet (UV; λ = 254 nm) irradiation. Structural parameters of the samples and the effects of UV irradiation on the surface properties of the PC and PC-ZnO nanocomposites were evaluated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle (WCA) measurements, and a Vickers microhardness (HV) tester. The XRD patterns of the nanocomposite films were found to show an increase in crystallinity with the increasing ZnO nanoparticles percentage. The WCA was found to be reduced from 90° to 17° after 15 h of UV irradiation, which could be ascribed to the oxidation of the surface of the samples during the irradiation and exposure of the ZnO nanoparticles, a result that is also supported by the obtained XPS data. The microhardness value of the PC-ZnO films including 30 wt.% ZnO enhanced considerably after UV radiation, which can also be attributed to the exposition of the ZnO nanoparticles after photodegradation of the PC superficial layer of the nanocomposite films.

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An ultrasound assisted cyclocondensation reaction for the efficient synthesis of [1]benzopyranopyrido[d]pyrimidines using porous graphene/MoO₃

Abdolmohammadi

Afsharpour

2020

Applied Organom Chemis

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In this paper, we report a feasible protocol for the preparation of [1]benzopyranopyrido[d]pyrimidines via expeditious sonochemical route. The reaction efficiency was evaluated by influence of several parameters including sonication power, sonication time, different solvents, and using porous graphene/MoO 3 nanocomposite as catalyst, for the first time. The effect of the ultrasonication comparing with the conventional heating on the synthesis of the titled compounds shows that the ultrasonic irradiation is required to rich the cyclized products. The structural properties of porous graphene/MoO 3 nanocomposite were determined by Fourier transform infrared spectroscopy (FT-IR), powder X-ray diffractometry (XRD), scanning electron microscope (SEM), Raman spectroscopy, and also by TGA analysis. Confirmation of the structures of compounds 4a-4h were also established with IR, 1 H NMR, and 13 C NMR spectroscopic data and also by elemental analyses.

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Wettability of Graphene Oxide/Zinc Oxide Nanocomposite on Aluminum Surface Switching by UV Irradiation and Low Temperature Annealing

Cited by 18 publications

References 40 publications

An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

An ultrasound assisted cyclocondensation reaction for the efficient synthesis of [1]benzopyranopyrido[d]pyrimidines using porous graphene/MoO₃

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Wettability of Graphene Oxide/Zinc Oxide Nanocomposite on Aluminum Surface Switching by UV Irradiation and Low Temperature Annealing

Cited by 18 publications

References 40 publications

An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

An Overview of Coating Processes on Metal Substrates Based on Graphene-Related Materials for Multifarious Applications

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

An ultrasound assisted cyclocondensation reaction for the efficient synthesis of [1]benzopyranopyrido[d]pyrimidines using porous graphene/MoO3

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Product

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An ultrasound assisted cyclocondensation reaction for the efficient synthesis of [1]benzopyranopyrido[d]pyrimidines using porous graphene/MoO₃