Egg white-mediated green synthesis of NiO nanoparticles and study of their cytotoxicity and photocatalytic activity

Sabouri, Zahra; Akbari, Alireza; Hosseini, Hasan Ali; Khatami, Mehrdad; Darroudi, Majid

doi:10.1016/j.poly.2020.114351

Cited by 118 publications

(22 citation statements)

References 46 publications

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“…However, the peaks located at 3000-3100 cm −1 are accredited to the C-H group on the electrospun PS side chain and the aromatic C-H stretching vibration [35]. It is worth mentioning that the typical absorption band of Ni-O stretching appeared at 430-490 cm −1 in PSN-1, PSN-2, and PSN-3 [36,37].…”

Section: Xrdmentioning

confidence: 96%

Electrospun highly corrosion-resistant polystyrene–nickel oxide superhydrophobic nanocomposite coating

et al. 2021

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A key challenge in producing superhydrophobic coatings (SHC) is to tailor the surface morphology on the micro-nanometer scale. In this work, a feasible and straightforward route was employed to manufacture polystyrene/nickel oxide (PSN) nanocomposite superhydrophobic coatings on aluminum alloys to mitigate their corrosion in a saline environment. Different techniques were employed to explore the influence of the addition of NiO nanoparticles to the as-prepared coatings. PSN-2 composite with ~ 4.3 wt% of NiO exhibited the highest water contact angle (WCA) of 155° ± 2 and contact angle hysteresis (CAH) of 5°. Graphic abstract EIS Nyquist plots of 3 g of electrospun polystyrene coatings (a) without and with (b) 0.1, (c) 0.15, and (d) 0.2 g of NiO.

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Section: Xrdmentioning

confidence: 96%

Electrospun highly corrosion-resistant polystyrene–nickel oxide superhydrophobic nanocomposite coating

et al. 2021

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“…Several semiconductor photocatalysts, such as CuO, ZnO, TiO 2 , NiO, and Fe 2 O 3 , were used in developing photocatalysts for dye degradation [ 8 , 9 , 10 , 11 , 12 ]. Many studies have been focused on TiO 2 as an n-type semiconductor for the treatment of many toxic pollutants [ 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of TiO2/NiO p-n Nanocomposite for Enhancement Dye Photodegradation under Solar Radiation

et al. 2022

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A p-n nanocomposite based on TiO2 nanotubes (NTs) and NiO nanoparticles (NPs) was designed and optimized in this study to improve the photocatalytic performance of methylene blue (MB). The hydrothermal technique has been used to produce TiO2/NiO nanocomposites with different NiO NPs weight ratios; 1TiO2:1NiO, 1TiO2:2NiO, and 1TiO2:3NiO. The crystal phase, chemical composition, optical properties, and morphology of TiO2/NiO were explored by various techniques. TiO2 NTs have a monoclinic structure, while NiO NPs have a cubic structure, according to the structural study. The bandgap of TiO2 NTs was reduced from 3.54 eV to 2.69 eV after controlling the NiO NPs weight ratio. The TiO2/2NiO nanocomposite showed the best photodegradation efficiency. Within 45 min of solar light irradiation, the efficiency of MB dye degradation using TiO2/2NiO hits 99.5% versus 73% using pure TiO2 NTs. Furthermore, the catalytic photodegradation efficiency did not deteriorate significantly even after five reusability cycles, intimating the high stability of the TiO2/2NiO nanocomposite. This suggests that the loading of NiO NPs into TiO2 NTs lowers the recombination of photo-produced electron/hole pairs and enlarged solar spectral response range, which results in improved photocatalytic activity. The mechanism of charge transfer in the TiO2/NiO and kinetic models were discussed for the photodegradation of MB.

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“…In addition, NPs of catalytic material provide high surface area, which lead to increase the reaction rate [12] . NiO NPs have excellent catalytic and photocatalytic activity, small size, low dielectric constant, wide band gap, as well as antibacterial properties even at low concentrations [26,27] . Also, the efficiency of NiO NPs in organic synthesis has been reported.…”

Section: Introductionmentioning

confidence: 99%

Preparation of β‐hydroxy Ketones via High Efficient Aldol Reaction over Nickel Oxide Nanoparticles as a Powerful and Reusable Heterogeneous Catalyst: Central Composite Design

2022

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Nickel oxide nanoparticles (NiO NPs) as a new catalyst were fabricated via the sol-gel method. The characterization of the synthesized nanocatalyst was assessed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Xray diffraction (XRD), and Fourier-transform infrared (FT-IR) spectroscopy. Its catalytic efficiency was evaluated in the aldol condensation reaction using an environmentally-friendly procedure. Among various solvents, including dimethyl sulfoxide (DMSO), dimethylformamide (DMF), tetrahydrofuran (THF), dichloromethane (CH 2 Cl 2 ), and water, the highest yield (82 %) was related to the water with room temperature, the reaction time of 5 h, and amount catalyst of 30 mmol. Response surface methodology (RSM) based on the central composite design (CCD) was applied to optimize the experimental factors of aldol reaction, as well as the investigation of interaction between the parameters. The results revealed that the temperature of 25 °C and a catalyst amount of 30 mmol had high performance (73.93 %). The preparation of catalyst was accomplished using inexpensive and easily available materials. The synthesized NPs were found to be an efficient and reusable catalyst for the aldol reaction.

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Egg white-mediated green synthesis of NiO nanoparticles and study of their cytotoxicity and photocatalytic activity

Cited by 118 publications

References 46 publications

Electrospun highly corrosion-resistant polystyrene–nickel oxide superhydrophobic nanocomposite coating

Electrospun highly corrosion-resistant polystyrene–nickel oxide superhydrophobic nanocomposite coating

Fabrication of TiO2/NiO p-n Nanocomposite for Enhancement Dye Photodegradation under Solar Radiation

Preparation of β‐hydroxy Ketones via High Efficient Aldol Reaction over Nickel Oxide Nanoparticles as a Powerful and Reusable Heterogeneous Catalyst: Central Composite Design

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