The influence of Triton X-100 surfactant on the morphology and properties of zinc sulfide nanoparticles for applications in azo dyes degradation

Dumbravă, Anca; Berger, Daniela; Prodan, G.; Matei, Cristian; Moscalu, Florin; Diacon, Aurel

doi:10.1016/j.matchemphys.2017.02.040

Cited by 14 publications

(7 citation statements)

References 41 publications

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“…The transmittance band for Triton X-100 membrane observed near 1106 cm -1 which assigned to the C-O stretching, revealed the presence of the surfactant in the membrane solution. This peak agrees with the finding of Dumbrava et al [29] which found the C-O stretching of Triton X-100 at 1016 cm -1 and 1022 cm -1 .…”

Section: Effect Of Surfactants On Molecular Orientation Of Lpro Membrsupporting

confidence: 92%

Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration

Sulaiman

Hassan

Rozali

et al. 2019

Period. Polytech. Chem. Eng.

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The effect of surfactants that are cationic (Cetyl trimethylammonium bromide (CTAB)), anionic (Sodium Dodecyl Sulphate (SDS)) and non-ionic (Triton X-100) on performance, morphologies and molecular orientation of Polysulfone (PSF) low pressure reverse osmosis (LPRO) membrane were addressed. The experimental data showed that the increasing of 0.5 wt% in surfactant concentration produced higher pure water permeation (PWP) and flux. At 2.5 wt% of SDS, the LPRO membranes achieved the highest PWP of about 64.42 L/m2 × h while 3.0 wt% of CTAB demonstrated the highest flux of 55.28 L/m2 × h. Analysis from morphological results foundthat the optimal performance at 89.6 % rejection was produced by the membrane with 2 wt% SDS which is a good promoter for the fine morphological structures of the membrane, thus producing fine spectrum of molecular orientation factor.

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Section: Effect Of Surfactants On Molecular Orientation Of Lpro Membrsupporting

confidence: 92%

Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration

Sulaiman

Hassan

Rozali

et al. 2019

Period. Polytech. Chem. Eng.

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“…The photodegradation experiment was continued for 2 hours and after 120 min, a photocatalytic activity of 88.1% (ZnO@antho 1), 86.4% (ZnO), respective 63.3% (ZnO@antho 2) was determined. In the absence of catalyst, an insignificant variation of CR concentration was identified, 70 demonstrating the high stability of this dye. The commercial powder Degussa P25 TiO 2 , for which the highest OH-index was determined, 60 was also tested in CR degradation.…”

Section: Resultsmentioning

confidence: 95%

Influence of Synthesis Route on the Structure and Properties of Zinc Oxide Nanoparticles Functionalized with Anthocyanins from Raw Vegetable Extracts

Dumbravă

Berger

Prodan

et al. 2017

ECS J. Solid State Sci. Technol.

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Blue zinc oxide nanopowders functionalized with anthocyanins from red cabbage were obtained by using two synthesis routes, i.e. one-pot synthesis and sensitization of white ZnO nanopowder. The structure and properties (optical, photocatalytic) of functionalized zinc oxide nanopowders where determined by XRD, SEM, TEM, HRTEM, electron diffraction, specific surface area analysis, FTIR, UV-Vis and PL spectroscopy, and compared with those of pristine zinc oxide nanopowder, obtained in similar conditions. A detailed structural study of nanoparticles (cell parameters, lattice strain, and crystallite size) was performed on the basis of electron diffraction data. The functionalized zinc oxide nanoparticles obtained by one-pot method present smaller particles size and different morphology in comparison with the other zinc oxide samples, exhibiting also the highest specific surface area and best photocatalytic activity in the discoloration of a Congo red solution (88.1%, after 120 min).

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“…The photoluminescence spectra of the ZnS quantum dots measured at 350 nm excitation wavelength at room temperature (Figure 3c) showed narrow emission bands in the range of 480-540 nm. The emission spectra are dependent on an interfacial process, which occurs between the particle's boundary and the surrounding medium [46,47]. The ZnS quantum dots emission maxima appeared at 517 nm for ZnS-1 and ZnS-2, while that of ZnS-3 appeared at 499 nm.…”

Section: Optical Studies Of Zns Quantum Dotsmentioning

confidence: 99%

Photocatalytic Degradation of Single and Binary Mixture of Brilliant Green and Rhodamine B Dyes by Zinc Sulfide Quantum Dots

Ajibade

Oluwalana

2021

Molecules

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We present the preparation of octadecylamine-capped ZnS quantum dots from bis(morpholinyldithiocarbamato)Zn(II) complex. The complex was thermolyzed at 130 °C in octadecylamine at different times, to study the effect of reaction time on the morphological and photocatalytic properties of the ZnS quantum dots. Powder X-ray diffraction patterns confirmed a hexagonal wurtzite crystalline phase of ZnS, while HRTEM images showed particle sizes of about 1–3 nm, and energy band gaps of 3.68 eV (ZnS–1), 3.87 eV (ZnS–2), and 4.16 eV (ZnS–3) were obtained from the Tauc plot for the ZnS nanoparticles. The as-prepared ZnS were used as photocatalysts for the degradation of brilliant green, rhodamine B, and binary dye consisting of a mixture of brilliant green-rhodamine B. The highest photocatalytic degradation efficiency of 94% was obtained from ZnS–3 with low photoluminescence intensity. The effect of catalytic dosage and pH of the dyes solution on the photocatalytic process shows that pH 8 is optimal for the degradation of brilliant green, while pH 6.5 is the best for photocatalytic degradation of rhodamine B. The degradation of the binary dyes followed the same trends. The effect of catalytic dosage shows that 1 mg mL−1 of the ZnS nano-photocatalyst is the optimum dosage for the degradation of organic dyes. Reusability studies show that the ZnS quantum dots can be reused five times without a significant reduction in degradation efficiency.

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The influence of Triton X-100 surfactant on the morphology and properties of zinc sulfide nanoparticles for applications in azo dyes degradation

Cited by 14 publications

References 41 publications

Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration

Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration

Influence of Synthesis Route on the Structure and Properties of Zinc Oxide Nanoparticles Functionalized with Anthocyanins from Raw Vegetable Extracts

Photocatalytic Degradation of Single and Binary Mixture of Brilliant Green and Rhodamine B Dyes by Zinc Sulfide Quantum Dots

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