Structural, optical and magnetic behaviors of Fe/Mn-doped and co-doped CdS thin films prepared by spray pyrolysis method

Murugesan, R.; Sivakumar, S.; Kannan, Karthik; Anandan, P.; Haris, M.

doi:10.1007/s00339-019-2577-x

Cited by 57 publications

(13 citation statements)

References 27 publications

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“…Using XRD data, we applied Scherer's formula to calculate the size of the crystallite. (Murugesan, Sivakumar, Karthik, Anandan, & Haris, 2019; Pakiyaraj, Kirthika, & Karthik, 2019). Where ( D = 0.9 λ / β cos θ ; while 0.9 is constant, λ indicates the wavelength, β represents the full width at the half maximum in radians and θ shows the Bragg's diffraction angle).…”

Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Asghar

Habib

Zaman

et al. 2020

Microscopy Res & Technique

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Microbial mediated synthesis of metallic nanoparticles constitutes as effective and promising approach for the development of antibacterial materials in the field of bioengineering and biomedicine. We prepared Cadmium oxide nanoaprticles (CdO NPs) utilizing Penicillium oxalicum, and cadmium acetate solution via coprecipitate method. The elemental composition and morphology of these synthesized CdO NPs were examined through X-ray diffraction (XRD), UV-Vis absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy dispersive spectroscopy (EDS). Furthermore, we evaluated the bactericidal potential of prepared CdO NPs using Escherichia coli (E.coli), Staphylococcus aureus (S.aureus), Bacillus cereus (B.cereus), and Pseudomonas aeruginosa (P. aeruginosa). Dimethyl sulfoxide was used as negative control while erythromycin was used as positive control. The XRD spectrum revealed cubic crystalline nanoparticles with 22.94 nm size and UV showed absorbance peak at 297 nm with 2.5 eV band gap energy. FTIR depicted O─H and carboxylic groups along with CdO stretching vibration. EDS showed the presence of organic compounds on Cd and O over NPs surface. SEM results revealed the spherical shape of the CdO NPs. The synthesized NPs exhibited highly potent bactericidal activity against selected strains and demonstrated less optical density of 0.086 after 24 hr. Owing to the significant antibacterial activity of CdO NPs, the broad application prospects of these nanoparticles CdO NPs in extensive biomedical applications is indicated.

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Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Asghar

Habib

Zaman

et al. 2020

Microscopy Res & Technique

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“…These peaks indicate that cadmium is in the +2 oxidation state, which is consistent with the formation of Cd(OH) 2 (Figure 7). 50,51 In general, the photocurrent tends to be negligible for the bare δ-MnO 2 electrode due to the rapid recombination of excited electrons in the d levels in the absence of a hole acceptor, as has been explored in previous studies. 14,18,52 The photocurrent voltage curves obtained when using δ-MnO 2 / Cd(OH) 2 as a photocathode in a standard photoelectrochemical cell under dark conditions and illumination are displayed in (Figure 8).…”

Section: ■ Results and Discussionmentioning

confidence: 92%

“…These peaks indicate that cadmium is in the +2 oxidation state, which is consistent with the formation of Cd(OH) 2 (Figure ). , …”

Section: Resultsmentioning

confidence: 99%

Nanostructured δ-MnO₂/Cd(OH)₂ Heterojunction Constructed under Ambient Conditions as a Sustainable Cathode for Photocatalytic Hydrogen Production

Natarajan

Saraf

Gupta

et al. 2020

Ind. Eng. Chem. Res.

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In this study, we report the deposition of a thin layer of Cd(OH)2 over δ-MnO2 deposited on a fluorine-doped tin oxide (FTO) glass substrate, thereby forming a heterojunction with synergistic effects. Electrodes fabricated by a room-temperature, facile, and cost-effective chemical bath deposition method display enhanced photoactivity when used as cathodes for the hydrogen evolution reaction (HER) in a photoelectrochemical cell, with an observed photocurrent of 0.3 mA/cm2 at 0 V vs reversible hydrogen electrode (RHE). The electrodes also showcase a dark electrocatalytic current of 2.9 mA/cm2 without illumination. The δ-MnO2/Cd(OH)2 nano-heterostructure is analyzed thoroughly via various physicochemical, optical and electrochemical methods to understand the phenomena involved in the conduction characteristics. The enhanced photoconductivity is attributed to effective charge separation and transport by the presence of synergistic materials with optimal band gap energies. These results show promise for the use of birnessite-based materials as sustainable electro- or photocatalysts for the hydrogen evolution reaction.

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“…It reduced to 2.06, 2.1 and 2.12 eV from 2.27 eV by the doping with (Fe + Mn), Fe and Mn, respectively. [37] The band gap of ZnS nanoparticles can be significantly reduced from 3.51 eV to 3.29, 2.04, 2.95, 2.35 and 0.86 eV by doping with Cd, Ni, Mn, Cr and V, respectively. [39] The band gap of Zn doped CdS nanomaterials is 1.96-2.21 eV depending on Zn concentration change from 0.1 M to 0.5 M. [40] The E g values of Zn x Cd 1À x S (x = 0, 0.14, 0.30, and 0.46) materials were 2.29, 2.39, 2.48 and 2.56 eV by Kubelka-Munk method, respectively.…”

Section: Optical Properties By Uv-vis and Ftir Spectroscopymentioning

confidence: 98%

Synthesis, structural and optical characterization of Cd_xZn_1−xS/FNBRnanocomposites

Balayeva,

Azizov,

Muradov

et al. 2024

ChemistrySelect

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CdxZn1−xS nanoparticles have been synthesized on the base of functionalized nitrile butadiene rubber (FNBR) by SILAR method and characterized by various techniques. Both binary and ternary sulfide nanocrystals have been obtained in the cubic phase with very high purity at room temperature. The average particle size decreased from 2.49 nm to 2.22 nm and then increased to 2.44 nm by the increasing of zinc concentration from 25 % to 50 % and 75 %. The calculated Young's modulus for (111), (220) and (311) planes are 97.84, 78.51 and 64.33 m2 N−1 for CdS and 95.84, 69.68, 53.42 m2 N−1 for ZnS, respectively. The band corresponding PO32− (977 cm−1) shifted to 969, 975, 972, 973, and 972 cm−1 upon the formation of CdS, ZnS, Cd0.5Zn0.5S, Cd0.75Zn0.25S and Cd0.25Zn0.75S nanoparticles into FNBR matrix, which is explained by Hooke's Law. EPR spectra of CdS/FNBR nanocomposite show broad and singlet asymmetric, isotropic symmetry (gx=gy=gz). The appearance of a new line in the 3518 G magnetic field is observed in both CdS and Cd0.5Zn0.5S compounds’ spectra.The total mass loss of the samples NBR, FNBR, Cd2+ and Zn2+ ions containing FNBR are 93.76, 59.77, 60.03 and 57.79 %, respectively. High crystallinity is caused by complete interaction of metal ions with functional groups during the nucleation.

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Structural, optical and magnetic behaviors of Fe/Mn-doped and co-doped CdS thin films prepared by spray pyrolysis method

Cited by 57 publications

References 27 publications

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Nanostructured δ-MnO₂/Cd(OH)₂ Heterojunction Constructed under Ambient Conditions as a Sustainable Cathode for Photocatalytic Hydrogen Production

Synthesis, structural and optical characterization of Cd_xZn_1−xS/FNBRnanocomposites

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Structural, optical and magnetic behaviors of Fe/Mn-doped and co-doped CdS thin films prepared by spray pyrolysis method

Cited by 57 publications

References 27 publications

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Synthesis and characterization of microbial mediated cadmium oxide nanoparticles

Nanostructured δ-MnO2/Cd(OH)2 Heterojunction Constructed under Ambient Conditions as a Sustainable Cathode for Photocatalytic Hydrogen Production

Synthesis, structural and optical characterization of CdxZn1−xS/FNBRnanocomposites

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Product

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Nanostructured δ-MnO₂/Cd(OH)₂ Heterojunction Constructed under Ambient Conditions as a Sustainable Cathode for Photocatalytic Hydrogen Production

Synthesis, structural and optical characterization of Cd_xZn_1−xS/FNBRnanocomposites