Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles.
TLDR
In this paper, the effect of thermolysis time on the morphological and optical properties of CuS nanoparticles prepared from Cu(II) dithiocarbamate single-source precursor was reported.Abstract:
We report the effect of thermolysis time on the morphological and optical properties of CuS nanoparticles prepared from Cu(II) dithiocarbamate single-source precursor. The as-prepared copper sulfide nanoparticles were used as photocatalysts for the degradation of crystal violet (CV), methylene blue (MB), rhodamine B (RhB), and a ternary mixture of the three dyes (CV/MB/RhB). Powder XRD patterns confirmed the hexagonal covellite phase for the CuS nanoparticles. At the same time, HRTEM images revealed mixed shapes with a particle size of 31.47 nm for CuS1 prepared at 30 min while CuS2 prepared at 1 h consists of mixtures of hexagonal and nanorods shaped particles with an average size of 21.59 nm. Mixed hexagonal and spherically shaped particles with a size of 17.77 nm were obtained for CuS3 prepared at 2 h. The optical bandgaps of the nanoparticles are 3.00 eV for CuS1, 3.26 eV for CuS2 and 3.13 eV for CuS3. The photocatalytic degradation efficiency showed that CuS3 with the smallest particle size is the most efficient photocatalyst and degraded 85% of CV, 100% of MB, and 81% of RhB. The as-prepared CuS showed good stability and recyclability and also degraded ternary dyes mixture (CV/MB/RhB) effectively. The byproducts of the dye degradation were evaluated using ESI-mass spectrometry.read more
Citations
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References
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Stabilizer free copper sulphide nanostructures for rapid photocatalytic decomposition of rhodamine B
TL;DR: In this article, a method of synthesizing stabilizer-free stabilizer free CuS and Cu 2 S nanostructures for photocatalytic applications has been developed by self-assembly of nanoflakes which was grown through anisotropic growth of (1 − 0 − 3) planes.
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Synthesis and structural studies of iron sulphide nanocomposites prepared from Fe(III) dithiocarbamates single source precursors
TL;DR: In this paper, four Fe(III) dithiocarbamate complexes were synthesized and characterized by spectroscopic techniques and thermogravimetric analysis, and they were used as single source precursors and thermolysed in HDA to prepare iron sulphide nanoparticles.
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Photothermal enhanced photocatalytic activity based on Ag-doped CuS nanocomposites
TL;DR: In this article, the photothermal effect of Cu1−xAgxS nanocomposites may further enhance their photocatalytic efficiency, while adjusting the amount of silver in the CuS nanocrystals.