A simple one-step synthesis of ZnS nanoparticles via salt-alkali-composited-mediated method and investigation on their comparative photocatalytic activity

Xiang, Donghu; Zhu, Yabo; Zhang, He; Liu, Zhangsheng; Luo, Jin

doi:10.1016/j.materresbull.2012.09.070

Cited by 20 publications

(12 citation statements)

References 27 publications

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“…The phase purity and crystal structure of as prepared Undoped ZnS and Ag doped ZnS Nano crystallites were carried out by analyzing the X-Ray Diffraction (XRD) patterns using monochromatic Cu-Kα radiation in 2θ range of 10º to 80 º with a X" Pert PRO Diffractometer (PANalytical, Netherlands) running under the continuous scanning mode in steps of 0.050 [14][15][16][17]. A JEOL-Scanning Electron Microscopy (SEM) (Model JSM -6390, Made in JAPAN) was used to record the micrograph for the samples of Undoped ZnS and Ag doped ZnS Nano crystallites.. Optical absorption studies were carried out using a UV-Visible Spectrometer (JASCO V-570, CANADA Make) in the range of 200 -1200 nm [18].…”

Section: Characterizationmentioning

confidence: 99%

The Experimental Investigation on the Structural, Morphological and Optical Properties of Undoped and Ag Doped Znsnano Crystallites

2017

IJAERD

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Section: Characterizationmentioning

confidence: 99%

The Experimental Investigation on the Structural, Morphological and Optical Properties of Undoped and Ag Doped Znsnano Crystallites

2017

IJAERD

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“…The mechanisms of photocatalytic degradation were shown in the following Eqs. (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16). …”

Section: Mechanism Of Photocatalytic Degradationmentioning

confidence: 99%

“…The bulk ZnS is having large band gap of 3.7 eV (Hexagonal wurtzite), 3.3-3.7 eV (Cubic sapherite), which is having exceptional stability against oxidation and hydrolysis. It has been comprehensively studied for wide range of applications like light-emitting diodes, electro-luminescence, chemical sensors, lasers, biosensors, bio-devices, photoconductors and solar cells [7,8]. On the other hand, ZnS and ZnS doped by noble metals (Cu, Ag, Au, Co) have important environmental applications in wastewater treatment as an effective photocatalyst [9,10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of ZnS-Ag nanoballs and its application in photocatalytic dye degradation under visible light

2014

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ZnS-Ag nanoballs were synthesized using chemical precipitation method at room temperature aided with the capping agent cetyl trimethyl ammonium bromide. The synthesized nanoballs were characterized by UV-Visible spectrophotometer, diffuse reflectance spectroscopy, X-ray diffraction, high resolution scanning electron microscopy, and energy dispersive X-ray. Photocatalytic activity of ZnS and ZnS-Ag nanoballs was evaluated by irradiating the solution of organic dye methylene blue (MB) in presence of visible light. The different parameters affecting degradation, such as dye concentration, catalyst loading and pH, were studied. Reusability of catalyst was evaluated up to three cycles. Kinetics study was done for the degradation of MB by ZnS and ZnS-Ag nanoballs. It was found that ZnS-Ag nanoballs show higher degradation efficiency than ZnS.

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“…Zinc sulfide (ZnS) is classified as an IIB–VIA semiconductor, and its electronic properties, like those of other materials, are determined by structural parameters. For example, ZnS typically crystallizes in hexagonal wurtzite or a cubic sphalerite structure, with a broad bandgap of 3.7–3.9 eV or 3.3–3.9 eV, respectively [ 1 , 2 , 3 , 4 , 5 ]. Furthermore, ZnS exhibits high exciton binding energy (0.04 eV), a small Bohr radius, and high activity [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study of Congo Red Dye from Synthetic Wastewater at Different Concentrations Using Zinc Sulfide Nanoparticles

et al. 2022

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Zinc sulfide (ZnS) nanoparticles were fabricated using the chemical precipitation method. The X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM) techniques were used to investigate the structural parameters of the formed ZnS. The hexagonal crystal structure of the Zn and ZnS phases was formed. The average crystallite size of the ZnS phase is 10.3 nm, which is much smaller than that of the Zn phase (54.5 nm). Several frequencies and phonon modes were detected in the Raman scattering spectrum belonging to the ZnS nanoparticles. The synthesized ZnS nanoparticles were used as catalysts to eliminate the Congo red (CR) dye, with different concentrations, from synthetic wastewater. The impact of the CR dye concentration and shaking period on the adsorption of CR was thoroughly investigated, and various adsorption kinetic models were tested. After 3 h of shaking, the adsorption efficiency reached 26.01% for 40 mg/L CR dye and 27.84% for 20 mg/L CR dye. The adsorption capacities of the CR dye in the presence of ZnS are 16% and 9% for 40 and 20 mg/L, respectively. Based on the correlation factor, the intraparticle diffusion kinetic model was considered the best of the tested models.

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A simple one-step synthesis of ZnS nanoparticles via salt-alkali-composited-mediated method and investigation on their comparative photocatalytic activity

Cited by 20 publications

References 27 publications

The Experimental Investigation on the Structural, Morphological and Optical Properties of Undoped and Ag Doped Znsnano Crystallites

The Experimental Investigation on the Structural, Morphological and Optical Properties of Undoped and Ag Doped Znsnano Crystallites

Synthesis and characterization of ZnS-Ag nanoballs and its application in photocatalytic dye degradation under visible light

Adsorption Study of Congo Red Dye from Synthetic Wastewater at Different Concentrations Using Zinc Sulfide Nanoparticles

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