Phase transitions in cadmium sulfide nanoparticles

Rose, Moly M.; Christy, R. Sheela; Benitta, T. Asenath; Kumaran, J. Thampi Thanka

doi:10.1063/5.0052078

Cited by 10 publications

(5 citation statements)

References 40 publications

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“…This blue shift indicates the presence of quantum-size effects in the cCdS sample. However, the determined bandgap for aCdS (2.36 eV) is in agreement with other reports [48,49]. The slightly red shift could originate from the surface defects of the CdS nanoparticles [50].…”

Section: Uv-vis Spectroscopy Resultssupporting

confidence: 92%

Sustainable Synthesis of Cadmium Sulfide, with Applicability in Photocatalysis, Hydrogen Production, and as an Antibacterial Agent, Using Two Mechanochemical Protocols

et al. 2022

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CdS nanoparticles were successfully synthesized using cadmium acetate and sodium sulfide as Cd and S precursors, respectively. The effect of using sodium thiosulfate as an additional sulfur precursor was also investigated (combined milling). The samples were characterized by XRD, Raman spectroscopy, XPS, UV-Vis spectroscopy, PL spectroscopy, DLS, and TEM. Photocatalytic activities of both CdS samples were compared. The photocatalytic activity of CdS, which is produced by combined milling, was superior to that of CdS, and was obtained by an acetate route in the degradation of Orange II under visible light irradiation. Better results for CdS prepared using a combined approach were also evidenced in photocatalytic experiments on hydrogen generation. The antibacterial potential of mechanochemically prepared CdS nanocrystals was also tested on reference strains of E. coli and S. aureus. Susceptibility tests included a 24-h toxicity test, a disk diffusion assay, and respiration monitoring. Bacterial growth was not completely inhibited by the presence of neither nanomaterial in the growth environment. However, the experiments have confirmed that the nanoparticles have some capability to inhibit bacterial growth during the logarithmic growth phase, with a more substantial effect coming from CdS nanoparticles prepared in the absence of sodium thiosulfate. The present research demonstrated the solvent-free, facile, and sustainable character of mechanochemical synthesis to produce semiconductor nanocrystals with multidisciplinary application.

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Section: Uv-vis Spectroscopy Resultssupporting

confidence: 92%

Sustainable Synthesis of Cadmium Sulfide, with Applicability in Photocatalysis, Hydrogen Production, and as an Antibacterial Agent, Using Two Mechanochemical Protocols

et al. 2022

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“…As the composition of Cd increases, the particle size decreases. The mixture at room temperature reveals the structure of any one of its components [34,35]. Structural studies clearly indicates that by suitably adjusting the composition, the nanoparticles can be synthesized with either orthorhombic phase or cubic phases and with desired particle size.…”

Section: Resultsmentioning

confidence: 99%

“…Phase transitions in Nickel Sulphide nanoparticles were already studied by varying the thermal annealing temperature [23]. Phase transitions in Cadmium Sulphide nanoparticles have already been reported by varying pressure, modifying the bath temperature, and varying annealing temperatures [24][25][26][27][28][29][30]. NixCd1-x S (x = 0.8,0.6,0.4 and 0.2) nanoparticles have both the applications of Nickel Sulphide nanoparticles and Cadmium Sulphide nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Structural, Electrical and Optical Studies of NixCd1-xS (x = 0.8, 0.6, 0.4 and 0.2) Nanoparticle System

M. Rose,

Christy,

Benitta

et al. 2023

East Eur. J. Phys.

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This paper demonstrates the synthesis of NixCd1-xS (x=0.8,0.6,0.4,0.2) nanoparticles by microwave-assisted chemical precipitation method. The prepared samples were characterized by XRD, EDAX, SEM, UV-VIS, and PL spectroscopy. The energy-dispersive x-ray analysis confirms the existence of Nickel, Cadmium and Sulphur in proper ratios. The DC electrical resistances were measured in the temperature range of 300 K-500 K. The temperature resistance curves of all the samples show phase transitions above a particular temperature. The UV and PL spectra of all the samples were compared and studied.

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“…CdS NPs have been prepared in recent decades by using various wet chemical techniques, including chemical precipitation, solvothermal, micro-emulsion, and hydrothermal processes [38]. Due to its ease of synthesis, simplicity, short reaction time, easy processing, low-cost operation, and excellent purity, the chemical precipitation method is the most widely used methodology for producing CdS NPs [44,83].…”

Section: Chemical Precipitation Methodsmentioning

confidence: 99%

Cadmium Sulfide Nanoparticles: Preparation, Characterization, and Biomedical Applications

et al. 2023

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Cadmium sulfide nanoparticles (CdS NPs) have been employed in various fields of nanobiotechnology due to their proven biomedical properties. They are unique in their properties due to their size and shape, and they are popular in the area of biosensors, bioimaging, and antibacterial and anticancer applications. Most CdS NPs are generally synthesized through chemical, physical, or biological methods. Among these methods, biogenic synthesis has attracted more attention due to its high efficiency, environmental friendliness, and biocompatibility features. The green approach was found to be superior to other methods in terms of maintaining the structural characteristics needed for optimal biomedical applications. The size and coating components of CdS NPs play a crucial role in their biomedical activities, such as anticancer, antibacterial, bioimaging, and biosensing applications. CdS NPs have gained significant interest in bioimaging due to their desirable properties, including good dispersion, cell integrity preservation, and efficient light scattering. Despite these, further studies are necessary, particularly in vivo studies to reduce NPs’ toxicity. This review discusses the different methods of synthesis, how CdS NPs are characterized, and their applications in the biomedical field.

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Phase transitions in cadmium sulfide nanoparticles

Cited by 10 publications

References 40 publications

Sustainable Synthesis of Cadmium Sulfide, with Applicability in Photocatalysis, Hydrogen Production, and as an Antibacterial Agent, Using Two Mechanochemical Protocols

Sustainable Synthesis of Cadmium Sulfide, with Applicability in Photocatalysis, Hydrogen Production, and as an Antibacterial Agent, Using Two Mechanochemical Protocols

Structural, Electrical and Optical Studies of NixCd1-xS (x = 0.8, 0.6, 0.4 and 0.2) Nanoparticle System

Cadmium Sulfide Nanoparticles: Preparation, Characterization, and Biomedical Applications

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