Simple one-pot sonochemical synthesis of copper sulphide nanoparticles for solar cell applications

Singh, Alok Kumar; Manivannan, R.; Victoria, S. Noyel

doi:10.1016/j.arabjc.2015.03.013

Cited by 43 publications

(16 citation statements)

References 41 publications

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“…The copper sulfide nanoparticles were synthesized using sonochemical route explained by Singh et al, [14]. A 220 mM copper acetate solution was used as precursor.…”

Section: Copper Sulfide Nanoparticlesmentioning

confidence: 99%

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Visible Range Photocatalysts for Solid Phase Photocatalytic Degradation of Polyethylene and Polyvinyl Chloride

Gupta

Lakshmp

Manivannan

et al. 2017

J. Chil. Chem. Soc.

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Solid phase photocatalytic degradation of polyethylene (PE) and polyvinyl chloride (PVC) with various photocatalysts such as ceria annealed at 350°C and 850°C, zinc oxide annealed at 250°C, copper sulfide and titania particles was studied under different light sources. Except titania, all the other photocatalysts performed reasonably well both in the visible and ultraviolet (UV) radiations. Ceria annealed at 850°C showed degradation efficiencies higher than 70% for PVC in the fluorescent and solar radiation. Ceria annealed at 350°C showed degradation efficiencies higher than 75% for polyethylene in fluorescent, solar and UV radiation. The Fourier transform infrared spectroscopy studies show the presence of adsorbed carbon dioxide on the degraded polymer-photocatalyst composite films. The UV-visible spectroscopic studies show that the ceria, zinc oxide and copper sulfide photocatalysts are active in the visible spectrum resulting in enhanced degradation efficiency in fluorescent and solar radiation.

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“…The copper sulfide nanoparticles were synthesized using sonochemical route explained by Singh et al, [14]. A 220 mM copper acetate solution was used as precursor.…”

Section: Copper Sulfide Nanoparticlesmentioning

confidence: 99%

“…The band gap of the synthesized particles was calculated using the Tauc relation (eq. 2) [14] ( 2)where, ε is the molar extinction coefficient, A is a constant, E g is optical band gap of the sample and hυ is photon energy. In this study, the value of n is 2 for all the photocatalysts.…”

Section: Preparation Of Polymer Filmsmentioning

confidence: 99%

Visible Range Photocatalysts for Solid Phase Photocatalytic Degradation of Polyethylene and Polyvinyl Chloride

Gupta

Lakshmp

Manivannan

et al. 2017

J. Chil. Chem. Soc.

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“…Biological AMD treatment by SRB is an example of an environmentally friendly technology to both ameliorate the effluent quality and open the possibility for the development of new products with aggregated value. Previous studies applying the biological AMD treatment by SRB, showed the potential for metal sulfide nanoparticle synthesis [6], which can be used as adsorbents, due to their small size, high reactivity, and large surface energy; with quick sorption capacity [7], solar cells components due to its optical activities [8], and fungicide beyond other industrial applications [9].…”

Section: Introductionmentioning

confidence: 99%

Covellite (CuS) Production from a Real Acid Mine Drainage Treated with Biogenic H2S

Silva

Lucheta

Bitencourt

et al. 2019

Metals

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Acid Mine Drainage (AMD) is an environmental problem associated with mining activities, which resulted from the exposure of sulfur bearing materials to oxygen and water. AMD is a pollution source due to its extreme acidity, high concentration of sulfate, and soluble metals. Biological AMD treatment is one alternative to couple environmental amelioration for valuable dissolved metals recovery, as a new source of raw materials. Covellite (CuS) particles were synthetized from an AMD sample collected in a Brazilian copper mine, after 48 and 96 h of exposure to hydrogen sulfide (H 2 S) produced in a bioreactor containing acidophilic sulfate reducing bacteria (SRB). The time of exposure affected the morphology, nucleation, and size of CuS crystals. CuS crystals synthetized after 96 h of H 2 S exposure showed better ordination as indicated by sharp and intense diffractograms obtained by X-ray diffraction (XRD), and the predominance of placoid sheets with hexagonal habit structure as observed by scanning electrons microscopy (SEM). Energy dispersive X-ray fluorescence (EDXRF) spectrometry indicated a Cu:S molar ratio in agreement with CuS. Granulometric analysis demonstrated that 90% of CuS particles were less than 22 µm size. AMD biological treatment is a potential economical CuS recovery option for metallurgical process chain incorporation, or new industrial applications, since the alteration of synthesis conditions can produce different crystal forms with specific characteristics.

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“…CuS phase exists in two forms, the amorphous brown chalcocite CuS and green crystalline covellite [12]. e optical properties of copper chalcogenides greatly depend on the copper vacancies [13].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Activity of Amino Acid-Capped Zinc and Copper Sulphide Nanoparticles

Mofokeng

Moloto

Shumbula

et al. 2018

Journal of Nanotechnology

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e synthesis of polydispersed zinc sulphide and copper sulphide nanocrystals capped with polar L-alanine (Aln) and L-aspartic acid (Asp) molecules is reported. e resulting nanocrystals were characterized by UV-visible spectroscopy (UV-Vis), photoluminescence (PL), X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR). UV-Vis absorption spectra of all samples were blue-shifted from the bulk band edges due to quantum confinement effects. PL emission spectrum of the nanoparticles showed peaks at 453 and 433 nm for Aln-capped ZnS and CuS nanoparticles, respectively, while peaks for Asp-capped ZnS and CuS nanoparticles were observed at 455 and 367 nm, respectively. e average particle sizes for Aln-capped ZnS and Asp-capped ZnS nanoparticles synthesized at 35°C were measured to be 2.88 nm and 1.23 nm, respectively. e antibacterial properties were tested using different strains of both positive and negative bacteria and fungi. It was found that capped-copper sulphide nanoparticles were more effective against the bacteria than cappedzinc sulphide nanoparticles. Staphylococcus aureus (ATCC 25923) was the most susceptible one with an MIC of 0.05 mg/mL for uncapped-CuS nanoparticles while Pseudomonas aeruginosa (ATCC 15442) and Cryptococcus neoformans (ATCC 14116) were the least ones with the MIC of 3.125 mg/mL for both uncapped-CuS and Aln-capped CuS.

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Simple one-pot sonochemical synthesis of copper sulphide nanoparticles for solar cell applications

Cited by 43 publications

References 41 publications

Visible Range Photocatalysts for Solid Phase Photocatalytic Degradation of Polyethylene and Polyvinyl Chloride

Visible Range Photocatalysts for Solid Phase Photocatalytic Degradation of Polyethylene and Polyvinyl Chloride

Covellite (CuS) Production from a Real Acid Mine Drainage Treated with Biogenic H2S

Antimicrobial Activity of Amino Acid-Capped Zinc and Copper Sulphide Nanoparticles

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