Mechanochemical Synthesis and Characterization of CuInS2/ZnS Nanocrystals

Dutková, Erika; Daneu, Nina; Bujňáková, Zdenka; Baláž, Matěj; Kováč, J.; Baláž, Peter

doi:10.3390/molecules24061031

Cited by 16 publications

(14 citation statements)

References 56 publications

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“…This is confirmed by pore size distribution of this sample shown in Figure 7 b. Almost similar situation was evidenced for CuInS 2 earlier [ 43 ].…”

Section: Resultssupporting

confidence: 89%

“…In MNC sample with highest ZnS fraction (CuInSe 2 /ZnS 1:4), the presence of ZnS nanocrystallites is clearly observed in the SAED pattern shown in Figure 6 c. Due to extremely small crystallite size (<5nm), the ZnS phase yields diffuse diffraction rings, making impossible distinction between sphalerite and wurtzite polymorphs. According to HRTEM analysis of CuInS 2 /ZnS [ 43 ], the ZnS component is mainly stabilized as sphalerite phase, with many defects having locally wurtzite-type stacking (stacking faults and twin boundaries).…”

Section: Resultsmentioning

confidence: 99%

“…The sample with highest ZnS content exhibits the S BET value approaching as high as 108 m 2 /g. In our previous study, the S BET values for the CuInS 2 /ZnS system prepared in a similar manner were reported to be 6 and 86 m 2 /g for ZnS-free and ZnS-rich compounds, respectively [ 43 ]. Whereas the as-synthesized CuInSe 2 exhibits almost two-fold lower S BET value than CuInS 2 , the CuInSe 2 /ZnS 1:4 MNC sample has higher S BET than the corresponding sulfide analogue.…”

Section: Resultsmentioning

confidence: 99%

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SDS-Stabilized CuInSe2/ZnS Multinanocomposites Prepared by Mechanochemical Synthesis for Advanced Biomedical Application

et al. 2020

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The CuInSe2/ZnS multiparticulate nanocomposites were first synthesized employing two-step mechanochemical synthesis. In the first step, tetragonal CuInSe2 crystals prepared from copper, indium and selenium precursors were co-milled with zinc acetate dihydrate and sodium sulfide nonahydrate as precursors for ZnS in different molar ratios by mechanochemical route in a planetary mill. In the second step, the prepared CuInSe2/ZnS nanocrystals were further milled in a circulation mill in sodium dodecyl sulphate (SDS) solution (0.5 wt.%) to stabilize the synthesized nanoparticles. The sodium dodecyl sulphate capped CuInSe2/ZnS 5:0-SDS nanosuspension was shown to be stable for 20 weeks, whereas the CuInSe2/ZnS 4:1-SDS one was stable for about 11 weeks. After sodium dodecyl sulphate capping, unimodal particle size distribution was obtained with particle size medians approaching, respectively, 123 nm and 188 nm for CuInSe2/ZnS 5:0-SDS and CuInSe2/ZnS 4:1-SDS nanocomposites. Successful stabilization of the prepared nanosuspensions due to sodium dodecyl sulphate covering the surface of the nanocomposite particles was confirmed by zeta potential measurements. The prepared CuInSe2/ZnS 5:0-SDS and CuInSe2/ZnS 4:1-SDS nanosuspensions possessed anti-myeloma sensitizing potential assessed by significantly reduced viability of multiple myeloma cell lines, with efficient fluorescence inside viable cells and higher cytotoxic efficacy in CuInSe2/ZnS 4:1-SDS nanosuspension.

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“…This is confirmed by pore size distribution of this sample shown in Figure 7 b. Almost similar situation was evidenced for CuInS 2 earlier [ 43 ].…”

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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SDS-Stabilized CuInSe2/ZnS Multinanocomposites Prepared by Mechanochemical Synthesis for Advanced Biomedical Application

et al. 2020

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“…In some samples, the reflection from the Si substrate was also visible (marked by a red star, PDF Number 00-027-1402). The position of the (220) and (311) peaks varied in about 0.6 degrees, which can be ascribed to the presence of twinned sphalerites in some of the samples, or the fact that ZnS crystallites are built of a mixture of both sphalerites and densely twinned sphalerites [33,34]. It was suggested that the formation of the (111)-twinned sphalerite would occur at a high temperature and with a rapid crystal-growth rate [34].…”

Section: Resultsmentioning

confidence: 99%

Structural and Optical Characterization of ZnS Ultrathin Films Prepared by Low-Temperature ALD from Diethylzinc and 1.5-Pentanedithiol after Various Annealing Treatments

et al. 2019

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The structural and optical evolution of the ZnS thin films prepared by atomic layer deposition (ALD) from the diethylzinc (DEZ) and 1,5-pentanedithiol (PDT) as zinc and sulfur precursors was studied. A deposited ZnS layer (of about 60 nm) is amorphous, with a significant S excess. After annealing, the stoichiometry improved for annealing temperatures ≥400 °C and annealing time ≥2 h, and 1:1 stoichiometry was obtained when annealed at 500 °C for 4 h. ZnS crystallized into small crystallites (1–7 nm) with cubic sphalerite structure, which remained stable under the applied annealing conditions. The size of the crystallites (D) tended to decrease with annealing temperature, in agreement with the EDS data (decreased content of both S and Zn with annealing temperature); the D for samples annealed at 600 °C (for the time ≤2 h) was always the smallest. Both reflectivity and ellipsometric spectra showed characteristics typical for quantum confinement (distinct dips/peaks in UV spectral region). It can thus be concluded that the amorphous ZnS layer obtained at a relatively low temperature (150 °C) from organic S precursor transformed into the layers built of small ZnS nanocrystals of cubic structure after annealing at a temperature range of 300–600 °C under Ar atmosphere.

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“…Photocatalytic performance is intensely related to nanostructure characteristics. Enormous attempts have been devoted to enhancing the photocatalytic efficiency of ZnS NPs by altering the nanostructure features via diverse methods and procedures [35][36][37]. This research accounts for the fabrication of ZnS ULNPs by the hydrothermal method.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic activity, nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method

Riazian

Yousefpoor

2020

International Journal of Smart and Nano Materials

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In the present research, the fabrication and characterization of ZnS urchin-like nanoparticles (ULNPs) via simple, template free and onestep hydrothermal method are reported. Zinc acetate dihydrate, thiosemicarbazide and ethylenediamine are utilized as precursors. Nanostructure characterization of three-dimension ZnS ULNPs is specified by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and ultraviolet-visible (UV-Vis) spectroscopy. The photocatalytic activity of ZnS NPs is determined by measuring the degradation of an organic dye methylene orange (MO) under UV-irradiation. The lattice characteristics such as nanocrystallite size, strain, stress, and deformation energy density are specified using Williamson-Hall (W-H) and Halder-Wagner (H-W) analysis with different considerations about the isotropic nature of the crystal. XRD analysis reveals that ZnS NPs are hexagonal wurtzite phase. The shape and mean diameter of NPs are demonstrated by TEM and SEM techniques to be 3D urchin-like with an average size of 60 nm. N2 adsorption-desorption and UV-Vis spectroscopies are utilized to specify the optical characteristics such as mean pore diameter, total pore size, and BET special surface area. The band gap of fabrication ZnS NPs has been evaluated from the Tauc equation and absorption edge to be 3.84 eV.

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Mechanochemical Synthesis and Characterization of CuInS2/ZnS Nanocrystals

Cited by 16 publications

References 56 publications

SDS-Stabilized CuInSe2/ZnS Multinanocomposites Prepared by Mechanochemical Synthesis for Advanced Biomedical Application

SDS-Stabilized CuInSe2/ZnS Multinanocomposites Prepared by Mechanochemical Synthesis for Advanced Biomedical Application

Structural and Optical Characterization of ZnS Ultrathin Films Prepared by Low-Temperature ALD from Diethylzinc and 1.5-Pentanedithiol after Various Annealing Treatments

Photocatalytic activity, nanostructure and optical properties of 3D ZnS urchin-like via hydrothermal method

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