Synthesis and characterization of copper sulfide nanocrystallites with low sintering temperatures

Shan, Junjun; Pulkkinen, Petri; Vainio, Ulla; Maijala, Juha; Merta, Juha; Jiang, Hua; Serimaa, Ritva; Kauppinen, Esko I.; Tenhu, Heikki

doi:10.1039/b803547d

Cited by 54 publications

(45 citation statements)

References 36 publications

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“…Another close up survey in the S 2p region (160.4 eV) has doublet peaks located at 162.20 eV (2p 3/2 ) and 163.15 eV (2p 1/2 ) with an energy difference of 1 eV (Fig. 3d), which can be assigned to sulfur coordinated to Cu and In [20]. The absence of peaks between 168 eV and 170 eV confirms that there was no sulfur oxidation.…”

Section: Resultssupporting

confidence: 50%

Synthesis of bullet-like wurtzite CuInS2 nanocrystals under atmospheric conditions

Guo

Zhou

et al. 2012

Journal of Crystal Growth

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Section: Resultssupporting

confidence: 50%

Synthesis of bullet-like wurtzite CuInS2 nanocrystals under atmospheric conditions

Guo

Zhou

et al. 2012

Journal of Crystal Growth

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“…2(c)). 49 A similar peak shi from 224.69 eV to 223.98 eV was observed in the composite samples. By the above analyses, it can be concluded that there is a strong interaction between ZnS and CuS in the composites.…”

supporting

confidence: 58%

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

et al. 2017

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Ultrafast visible light active CuS/ZnS nanostructured photocatalysts were synthesized by a hydrothermal method. The effect of the CuS concentration on the morphological, structural and optical properties of ZnS nanostructures were investigated. X-ray diffraction analysis indicated the formation of CuS/ZnS phases with good crystallinity. The presence of ZnS on CuS was confirmed by X-ray photoelectron spectroscopy, elemental mapping, scanning electron microscopy and high resolution transmission electron microscopy analyses. CuS/ZnS nanocomposites efficiently decomposed methylene blue (MB) upon irradiation with visible light. The degradation time was 3 times faster than that of bare ZnS and CuS.The scavenger analysis results revealed that photogenerated superoxide (O 2 À c) radicals were the main reactive species for the degradation of MB. The maximum degradation efficiency of 95.51% was observed within 5 min for samples of 0.050 M CuS/ZnS composites. The obtained results suggested that the enhanced photocatalytic activity was due to the formation of CuS/ZnS heterojunctions which led to the efficient separation of the photoinduced carriers.

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“…After hydrothermal reaction, it can be clearly seen that Cu 9 S 5 nanocrystals with a size in the range of 5–20 nm were uniformly formed on the surface of PANI nanowires (Figure 1d). A high resolution TEM (HRTEM) image exhibits that the as-prepared Cu 9 S 5 nanocrystals showed a good crystallinity, with the lattice spacing of 0.20 nm which could be corresponding to the {0120} facet of Cu 9 S 5 48 (Figure 1e). A control experiment was also performed to synthesize pristine Cu 9 S 5 nanocrystals, which exhibit a particle or rod shape with a size of about 20–80 nm (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

A facile strategy to decorate Cu9S5 nanocrystals on polyaniline nanowires and their synergetic catalytic properties

Bian

et al. 2013

Sci Rep

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Here, we demonstrated a novel method to decorate Cu9S5 nanocrystals on polyaniline (PANI) nanowires using the dopant of mercaptoacetic acid (MAA) in the PANI matrix as the sulfur source under a hydrothermal reaction. TEM images showed that Cu9S5 nanocrystals with a size in the range of 5–20 nm were uniformly formed on the surface of PANI nanowires. Significantly, the as-prepared PANI/Cu9S5 composite nanowires have been proven to be novel peroxidase mimics toward the oxidation of the peroxidase substrate 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H2O2. Due to the synergetic effects between polyaniline nanowires and Cu9S5 nanocrystals, the obtained PANI/Cu9S5 composite nanowires exhibit superior catalytic activity over the independent components. This work not only presents a simple and versatile method to decorate semiconductor nanocrystals on the surface of conducting polymer nanostructures, but also provides fundamental guidelines for further investigations into the synergetic effect between conducting polymers and other materials.

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Synthesis and characterization of copper sulfide nanocrystallites with low sintering temperatures

Cited by 54 publications

References 36 publications

Synthesis of bullet-like wurtzite CuInS2 nanocrystals under atmospheric conditions

Synthesis of bullet-like wurtzite CuInS2 nanocrystals under atmospheric conditions

Synergetic effect of CuS@ZnS nanostructures on photocatalytic degradation of organic pollutant under visible light irradiation

A facile strategy to decorate Cu9S5 nanocrystals on polyaniline nanowires and their synergetic catalytic properties

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