Structural, optical and photoconductivity characteristics of manganese doped cadmium sulfide nanoparticles synthesized by co-precipitation method

Mishra, Sheo K.; Srivastava, Rajneesh; Prakash, Satya; Yadav, Raghvendra Singh; Panday, Ashwin

doi:10.1016/j.jallcom.2011.10.003

Cited by 39 publications

(8 citation statements)

References 61 publications

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“…e XRD patterns of TiO 2 , CdS, and CdS/TiO 2 hybrid nanoparticles are shown in Figure 4. In the XRD pattern of CdS, three peaks were found at 2θ values of 26.46°, 43.28°, and 51.20°corresponding to the (111), (220), and (311) planes, respectively, which can be indexed to cubical zincblende structure [22]. is is in good agreement with the JCPDS card (No: 10-454) corresponding to CdS.…”

Section: Xrd Analysissupporting

confidence: 85%

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

Nyamukamba

Moloto

Mungondori

2019

Journal of Nanotechnology

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Reusable photocatalytic polyacrylonitrile membrane-supported cadmium sulphide/titanium dioxide hybrid nanoparticles (CdS/TiO2-PAN) were prepared using a dry-wet phase inversion technique. Scanning electron microscopy (SEM) analysis revealed that the photocatalytic membranes had a porous sublayer, a compact top layer, and that, some of the nanoparticles were not encapsulated by the membranes. The average crystallite sizes of the CdS, TiO2, and CdS/TiO2 hybrid nanoparticles were 3.41 nm, 10.47 nm, and 12.17 nm, respectively. The combination of CdS and TiO2 nanoparticles led to a red shift (band gap; ca. 2.6 eV) of the absorption band and extended the optical absorption spectrum into the visible region relative to TiO2. The photocatalytic activity of CdS/TiO2-PAN membranes was explored in the degradation of methylene blue dye under visible light irradiation, and the results revealed that the best photocatalytic performance was achieved by 0.1 g CdS/TiO2-PAN photocatalytic membrane with 5% loading of the CdS/TiO2 hybrid nanoparticles, which degraded 66.29% of methylene blue in 210 minutes at 25°C and pH 8.5. It was found that the optimum loading of nanoparticles in the membranes was 0.1 g. All the photocatalytic membranes showed an insignificant decrease in the photocatalytic activity when used repeatedly. According to literature, CdS/TiO2-PAN photocatalytic membranes have not been prepared before for the purpose of treating simulated wastewater.

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Section: Xrd Analysissupporting

confidence: 85%

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

Nyamukamba

Moloto

Mungondori

2019

Journal of Nanotechnology

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“…Fig.5 shows the PL results of pure CdS and CdS:Ce, CdS:La and CdS:Nd at ratio (10%) thin films by excited wavelength at 400 nm. For pure CdS there is a broad defect emission because the present of point defects such as cadmium vacancies (V Cd ), sulfur vacancies (V S ), cadmium interstitials I Cd and sulphur interstitials (I S ), which act as luminescent centers [24]. It is observed that three beaks, a broad peak between 320 and 480, which centered at 440 nm.…”

Section: Resultsmentioning

confidence: 99%

The effect of rear earth doping CdS nanostructure on structural, optical and photoconductivity properties

Ibrahim¹

2019

IJP

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Rare earth elements (Cerium, Lanthanum and Neodymium) doped CdS thin films are prepared using the chemical Spray Pyrolysis Method with temperature 200 oC. The X-ray diffraction (XRD) analysis refers that pure CdS and CdS:Ce, CdS:La and CdS:Nd thin films showed the hexagonal crystalline phase. The crystallite size determined by the Debye-Scherrer equation and the range was (35.8– 23.76 nm), and it was confirmed by field emission scanning electron microscopy (FE-SEM). The pure and doped CdS shows a direct band gap (2.57 to 2.72 eV), which was obtained by transmittance. The room-temperature photoluminescence of pure and doped CdS shows large peak at 431 nm, and two small peaks at (530 and 610 nm). The Current – voltage measurement in dark and illumination (100 mW/cm2, 183 mW/cm2 and 288 mW/cm2) condition. The photocurrent increases and the resistivity decreases with the light intensity increases. So film reveals photoconductivity phenomena suggesting it's useful for optoelectronic applications.

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“…From a pool of 100 publications on metal sulfide NPs, details of metal and sulfur sources used for the synthesis of these particles are obtained [5, 7, 10, 19, 21, 22, 25–27, 30–120] . Care was taken to include only studies that synthesized 0D nanomaterials (NPs) and used only a single source of sulfur for synthesis, which was commercially available at the time of writing.…”

Section: Sulfur Sourcesmentioning

confidence: 99%

Metal Sulfide Nanoparticles: Precursor Chemistry

Balakrishnan

Groeneveld

Pokhrel

et al. 2021

Chemistry A European J

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Fascination with and the need for evermore increasing efficiency, power, or strength have been the cornerstones for developing new materials and methods for their creation. Higher solar cell conversion efficiencies, increased battery storage power, and lightweight strong materials are some that have been at the forefront of attention for these efforts. Materials created for most applications start as simple chemical compounds. A study of how these chemicals have been used in the past can be used to create new materials and new methods of production. Herein, a class of materials that are valuable in a multitude of applications, metal sulfide nanoparticles, are examined, along with how they are being produced and how new methods can be established that will help to standardize and increase production capabilities. Precursor–solvent combinations that can be used to create metal sulfide nanoparticles in the gas phase are also explored.

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Structural, optical and photoconductivity characteristics of manganese doped cadmium sulfide nanoparticles synthesized by co-precipitation method

Cited by 39 publications

References 61 publications

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

The effect of rear earth doping CdS nanostructure on structural, optical and photoconductivity properties

Metal Sulfide Nanoparticles: Precursor Chemistry

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Structural, optical and photoconductivity characteristics of manganese doped cadmium sulfide nanoparticles synthesized by co-precipitation method

Cited by 39 publications

References 61 publications

Visible Light-Active CdS/TiO2 Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

Visible Light-Active CdS/TiO2 Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

The effect of rear earth doping CdS nanostructure on structural, optical and photoconductivity properties

Metal Sulfide Nanoparticles: Precursor Chemistry

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Product

Resources

About

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water

Visible Light-Active CdS/TiO₂ Hybrid Nanoparticles Immobilized on Polyacrylonitrile Membranes for the Photodegradation of Dyes in Water