Copper oxide nanostructured thin films processed by SILAR for optoelectronic applications

Patwary, Md Abdul Majed; Hossain, Md. Alauddin; Ghos, Bijoy Chandra; Chakrabarty, Joy; Haque, Syed Ragibul; Uddin, Jamal; Tanaka, Tooru

doi:10.1039/d2ra06303d

Cited by 19 publications

(2 citation statements)

References 138 publications

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“…This strategy broadens the absorption of solar energy and prolongs the lifetime of charge carriers 36 – 38 . Cupric oxide (CuO), which possesses advantages such as high stability, affordability, a p-type narrow bandgap (1.2–1.8 eV), and non-toxicity, is considered a promising material for constructing heterostructured p–n nanocomposites with ZnO 39 . CuO presents a promising potential for forming heterostructured p–n nanocomposites when combined with ZnO.…”

Section: Introductionmentioning

confidence: 99%

Novel nanostructure approach for antibiotic decomposition in a spinning disc photocatalytic reactor

Fallahizadeh,

Rahimi,

Gholami

et al. 2024

Sci Rep

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Conventional wastewater treatment processes are often unable to remove antibiotics with resistant compounds and low biological degradation. The need for advanced and sustainable technologies to remove antibiotics from water sources seems essential. In this regard, the effectiveness of a spinning disc photocatalytic reactor (SDPR) equipped with a visible light-activated Fe3O4@SiO2-NH2@CuO/ZnO core–shell (FSNCZ CS) thin film photocatalyst was investigated for the decomposition of amoxicillin (AMX), a representative antibiotic. Various characterization techniques, such as TEM, FESEM, EDX, AFM, XRD, and UV–Vis-DRS, were employed to study the surface morphology, optoelectronic properties, and nanostructure of the FSNCZ CS. Key operating parameters such as irradiation time, pH, initial AMX concentration, rotational speed, and solution flow rate were fine-tuned for optimization. The results indicated that the highest AMX decomposition (98.7%) was attained under optimal conditions of 60 min of irradiation time, a rotational speed of 350 rpm, a solution flow rate of 0.9 L/min, pH of 5, and an initial AMX concentration of 20 mg/L. Moreover, during the 60 min irradiation time, more than 69.95% of chemical oxygen demand and 61.2% of total organic carbon were removed. After the photocatalytic decomposition of AMX, there is a substantial increase in the average oxidation state and carbon oxidation state in SDPR from 1.33 to 1.94 and 3.2, respectively. Active species tests confirmed that ·OH and ·O2− played a dominant role in AMX decomposition. The developed SDPR, which incorporates a reusable and robust FSNCZ CS photocatalyst, demonstrates promising potential for the decomposition of organic compounds.

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Section: Introductionmentioning

confidence: 99%

Novel nanostructure approach for antibiotic decomposition in a spinning disc photocatalytic reactor

Fallahizadeh,

Rahimi,

Gholami

et al. 2024

Sci Rep

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“…[28][29][30][31][32] The chemical mechanism of copper oxidation is well understood, [33] and several methods allow fabricating such films with high accuracy and reproducibility. [34,35] Although an ideal thin-film deposition method like atomic sputtering or epitaxial growth may produce results of unrivaled homogeneity, [28] extensive environment control and vacuum requirements render this approach complex. In this respect, laser-based copper oxide thinfilm fabrication methods provide an easy, in-air alternative with high precision down to the diffraction limit.…”

Section: Introductionmentioning

confidence: 99%

Efficient Composite Colorization of Copper by Spatially Controlled Oxidation with Deep‐UV Ultrafast Lasers

Groussin,

Martinez‐Calderon,

Beldarrain

et al. 2023

Advanced Optical Materials

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Colorizing metals using micrometer and nanometer scale surface modifications has been vastly investigated and presents many advantages for applications across scientific and technological fields. By tuning the surface chemical composition or controlling its morphology, it is possible to produce a wide range of chromatic effects. Ultrafast laser processing presents here an interesting asset, as it allows to simultaneously provide chemical and morphological modifications at the micro‐scale in a single step. In this article, the composite colorization of copper surfaces with mW‐class average power deep ultraviolet (DUV) femtosecond laser pulses is demonstrated. The advantages of this setup are twofold: first, thanks to the increased absorption of copper in the DUV, the technique allows scaling down the requirement for laser power. Second, under ultrafast short‐wavelength illumination molecular oxygen bond‐breaks occur, enhancing the oxidation rate of the copper. The technique allows for highly controllable and efficient copper oxidation with the irradiation parameters. Taking these two effects into account, the generation of a wide spectrum of colors—from dark blue to shiny red—is demonstrated, and the role of the surface oxidation rate, the laser fluence, and laser scanning strategies in the colorization of copper surfaces employing DUV lasers is discussed.

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Copper oxide-based anodes for highly sensitive electrochemical detection of amlodipine

khan,

Sahito,

Kalwar

et al. 2024

J Mater Sci: Mater Electron

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Copper oxide nanostructured thin films processed by SILAR for optoelectronic applications

Abstract: CuxO nanostructured thin films are potentially appealing materials for many applications. The deposition technique, SILAR, explored in this paper offers many advantages.

Cited by 19 publications

References 138 publications

Novel nanostructure approach for antibiotic decomposition in a spinning disc photocatalytic reactor

Novel nanostructure approach for antibiotic decomposition in a spinning disc photocatalytic reactor

Efficient Composite Colorization of Copper by Spatially Controlled Oxidation with Deep‐UV Ultrafast Lasers

Copper oxide-based anodes for highly sensitive electrochemical detection of amlodipine

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