Photo Catalytic Degradation of Methylene Blue by Using CuO Nanoparticles

Jassim, H. A.; Khadhim, A.; Al-Amiery, Ahmed A.

doi:10.24842/1611/0011

Cited by 11 publications

(9 citation statements)

References 22 publications

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“…In this study, the phytosynthesized CuONPs in sizes between 90 and 250 nm showed good decolorization efficiency; however, some other studies synthesized relatively smaller sized CuONPs were reported higher percentage of decolorization [37, 38]. Our results are advanced in terms of being faster and an increased level of decolorization when compared with previous reports [28, 39]. These results represent that CuONPs have a good dye decolorization activity on Brilliant Blue R‐250.…”

Section: Resultssupporting

confidence: 43%

Phytosynthesis of CuONPs via Laurus nobilis: Determination of antioxidant content, antibacterial activity, and dye decolorization potential

Kocabas

Attar

Peksel

et al. 2020

Biotech and App Biochem

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Copper oxide nanoparticles (CuONPs) were phytosynthesized by Laurus nobilis leaf extract, which was used as a reducing and capping agent. UV‐vis spectroscopy was applied, and the spectrum of CuONPs gave a peak around 300 and 325 nm. An intense Fourier transform infrared spectroscopy between 4000 and 500 cm−1 wavelengths exhibited exterior functional groups of CuONPs. The results of scanning electron microscopy and transmission electron microscopy revealed that the green synthesized CuONPs were spherical in shape with sizes between 90 and 250 nm. Antibacterial activity of CuONPs was evaluated against both Gram‐positive and Gram‐negative bacteria. Brilliant Blue R‐250 was employed in the dye decolorization studies, and CuONPs achieved 69% decolorization in 60 Min. The antioxidant activity of CuONPs was calculated by analyzing total phenolic compounds and flavonoid content. Furthermore, the reducing power of extract and nanoparticles was determined. Total phenolic compounds of CuONPs were determined as 6.7 µg of pyrocatechol equivalent/mg, while total flavonoids were measured as 236.62 µg catechin/mg sample. Results indicated that the method of CuONP formation is simple and low cost and the phytosynthesized CuONPs had antibacterial, antioxidant, and dye decolorization activity.

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Section: Resultssupporting

confidence: 43%

Phytosynthesis of CuONPs via Laurus nobilis: Determination of antioxidant content, antibacterial activity, and dye decolorization potential

Kocabas

Attar

Peksel

et al. 2020

Biotech and App Biochem

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show abstract

“…All samples were machined as half bush. The important properties of the main materials used in the wear tests were shown in table (1). Each sample was first polished and cleaned using acetone before wear test.…”

Section: A Samples Preparationmentioning

confidence: 99%

“…hen the components of machinery move in contact with one another, natural wear process take place which results in the removal of wear material from surfaces [1][2][3]. The free material may be transported in the lubricant.…”

Section: Introductionmentioning

confidence: 99%

Determination the wear rate by using XRF technique for Kovar alloy under lubricated

Kadhim¹,

Jawad²,

Numan³

2017

IJOCAAS

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Kovar alloy was machined and prepared as half bushes with diameter 1.6cm and length of 1.5 cm. Many specimens were prepared and subjected to wear testing system under lubricated condition. The tests were carried out under different condition such as sliding speed of 750rpm and fixed lubricant type and under variable conditions such as sliding time and normal loads. Weight loss and wear rate were determined for all samples and under different conditions. Kovar debris suspended in oil lubricant and placed in special container and subjected to X-Ray Fluorescence system to determine the quantitative and qualitative analysis.

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“…An effective way to increase polymers’ refractive index is by introducing high n inorganic nanoparticles into the organic polymers. Recently, doping with TiO 2 [ 11 , 12 ], ZnO [ 13 , 14 ], ZnS [ 15 ], ZrO 2 [ 16 ], Al 2 O 3 [ 17 ] NPs, and so on, has been utilized to obtain nanocomposites of high optical quality for nanomaterial applications [ 18 , 19 ]. These nanocomposites can be exploited in CL manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Manufacture of Contact Lens of Nanoparticle-Doped Polymer Complemented with ZEMAX

et al. 2020

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Many people suffer from myopia or hyperopia due to the refractive errors of the cornea all over the world. The use of high refractive index (RI), Abbe number (νd), and visible light transmittance (T%) polymeric contact lenses (CLs) holds great promise in vision error treatment as an alternative solution to the irreversible laser-assisted in situ keratomileusis (LASIK) surgery. Titanium dioxide nanoparticles (TiO2 NPs) have been suggested as a good candidate to rise the RI and maintain high transparency of a poly(methyl methacrylate) (PMMA)-TiO2 nanocomposite. This work includes a preparation of TiO2 NPs using the sol gel method as well as a synthesis of pure PMMA by free radical polarization and PMMA-TiO2 CLs using a cast molding method of 0.005 and 0.01 w/v concentrations and a study of their effect on the aberrated human eye. ZEMAX optical design software was used for eye modeling based on the Liou and Brennan eye model and then the pure and doped CLs were applied. Ocular performance was evaluated by modulation transfer function (MTF), spot diagram, and image simulation. The used criteria show that the best vision correction was obtained by the CL of higher doping content (p < 0.0001) and that the generated spherical and chromatic aberrations in the eye had been reduced.

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Photo Catalytic Degradation of Methylene Blue by Using CuO Nanoparticles

Cited by 11 publications

References 22 publications

Phytosynthesis of CuONPs via Laurus nobilis: Determination of antioxidant content, antibacterial activity, and dye decolorization potential

Phytosynthesis of CuONPs via Laurus nobilis: Determination of antioxidant content, antibacterial activity, and dye decolorization potential

Determination the wear rate by using XRF technique for Kovar alloy under lubricated

Manufacture of Contact Lens of Nanoparticle-Doped Polymer Complemented with ZEMAX

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