Bis-(N-ethylphenyldithiocarbamato)palladium(II) as molecular precursor for palladium sulfide nanoparticles

Paca, Athandwe M.; Ajibade, Peter A.

doi:10.1016/j.molstruc.2021.130777

Cited by 10 publications

(7 citation statements)

References 53 publications

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“…The FTIR spectra of octadecylamine (capping agent) and the as-prepared CuS nanoparticles (Figure S2) showed three peaks at 3322, 3265, and 3181 cm −1 assigned to υ(N-H) stretching vibrations while the υ(C-H) symmetric and asymmetric vibrations were observed at 2909 and 2842 cm −1 [44]. The υ(N-H) peaks shifted to 3317, 3227, and 3054 cm −1 in the octadecylamine capped CuS nanoparticles while the υ(C-H) symmetric vibrations shifted to 2911 cm −1 and υ(C-H) asymmetric vibration was observed at 2838 cm −1 .…”

Section: Structural and Morphological Studies Of The Cus Nanoparticlesmentioning

confidence: 99%

Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles

Ajibade

Oluwalana

2021

Nanomaterials

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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.

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Section: Structural and Morphological Studies Of The Cus Nanoparticlesmentioning

confidence: 99%

Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles

Ajibade

Oluwalana

2021

Nanomaterials

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“…A modified literature method was used. − The DDA, HDA, or ODA (2 g) capping agent was heated to 200 °C in a three-necked flask fitted with a reflux condenser, a thermometer, and a rubber septum. [Zn 2 (dalldtc) 4 ] or [Ag(μ-dalldtc) 3 ] (0.2 g) dispersed in oleic acid (2 mL) was injected to the hot capping agent.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Crystal Structures of Bis(diallydithiocarbamato)zinc(II) and Silver(I) Complexes: Precursors for Zinc Sulfide and Silver Sulfide Nanophotocatalysts

2023

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We report the preparation and crystal structures of bis(diallydithiocarbamato)zinc(II) and silver(I) complexes. The compounds were used as single-source precursors to prepare zinc sulfide and silver sulfide nanophotocatalysts. The molecular structure of bis(diallydithiocarbamato)zinc(II) consists of a dimeric complex in which each zinc(II) ion asymmetrically coordinates with two diallydithiocarbamato anions in a bidentate chelating mode, and the centrosymmetrically related molecule is bridged through the S-atom that is chelated to the adjacent zinc(II) ion to form a distorted trigonal bipyramidal geometry around the zinc(II) ions. The molecular structure of bis(diallydithiocarbamato)silver(I) formed a cluster complex consisting of a trimetric Ag3S3 molecule in which the diallydithiocarbamato ligand is coordinated to all the Ag(I) ions. The complexes were thermolyzed in dodecylamine, hexadecylamine, and octadecylamine (ODA) to prepare zinc sulfide and silver sulfide nanoparticles. The powder X-ray diffraction patterns of the zinc sulfide nanoparticles correspond to the hexagonal wurtzite while silver sulfide is in the acanthite crystalline phase. The high-resolution transmission electron microscopy images show that quantum dot zinc sulfide nanoparticles are obtained with particle sizes ranging between 1.98 and 5.49 nm, whereas slightly bigger silver sulfide nanoparticles are obtained with particle sizes of 2.70–13.69 nm. The surface morphologies of the ZnS and AgS nanoparticles capped with the same capping agent are very similar. Optical studies revealed that the absorption band edges of the as-prepared zinc sulfide and silver sulfide nanoparticles were blue-shifted with respect to their bulk materials with some surface defects. The zinc sulfide and silver sulfide nanoparticles were used as nanophotocatalysts for the degradation of bromothymol blue (BTB) and bromophenol blue (BPB). ODA-capped zinc sulfide is the most efficient photocatalyst and degraded 87% of BTB and 91% of BPB.

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“…[ 1 , 23 , 24 , 25 , 26 , 27 ] Various families of inorganic compounds containing metal chalcogenides have been investigated for their suitability as precursors for the fabrication of high‐quality metal chalcogenides nanostructured materials. [ 28 , 29 , 30 ] Some examples include aminethiol, [31] dithiocarbamate, [32] thiobiuret, [33] xanthate [34] and thiourea. [35] …”

Section: Introductionmentioning

confidence: 99%

“…[1,[23][24][25][26][27] Various families of inorganic compounds containing metal chalcogenides have been investigated for their suitability as precursors for the fabrication of highquality metal chalcogenides nanostructured materials. [28][29][30] Some examples include aminethiol, [31] dithiocarbamate, [32] thiobiuret, [33] xanthate [34] and thiourea. [35] However, the key to the success of this technique lies in the nifty design of a molecular precursor that is, on one hand, sufficiently stable and storable and, on the other hand, decomposes into a pure solid at moderately elevated temperature without leaving any residues.…”

Section: Introductionmentioning

confidence: 99%

Thiourea‐Derived Single‐Source Molecular Precursor For Spin‐Coated PbS Thin Films

et al. 2023

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In search of a suitable single‐source precursor for the deposition of nanostructured PbS thin films at moderate temperatures under ambient conditions, we have synthesized the ligand N ‐(thiomorpholine‐4‐carbothioyl)benzamide and its corresponding lead(II) complex. The structures of both compounds were determined by single‐crystal X‐ray diffraction. In the complex, two ligands coordinate to a lead(II) atom in hemi‐directed geometry through S and O atoms. Secondary intermolecular Pb⋅⋅⋅S interactions group the complexes into pairs. As bulk powders, both the ligand and complex show nominal composition and purity as evidenced by elemental analysis, 1 H NMR and IR spectroscopy. Thermal analysis of the lead(II) complex was carried out to understand its thermal decomposition behaviour for establishing a thin film fabrication protocol. Thin films of phase‐pure PbS were fabricated using this new molecular precursor at the comparatively low annealing temperature of 250 °C. The film showed nanoparticles with cuboidal morphology and a blue‐shifted optical absorption.

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Bis-(N-ethylphenyldithiocarbamato)palladium(II) as molecular precursor for palladium sulfide nanoparticles

Cited by 10 publications

References 53 publications

Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles

Enhanced Photocatalytic Degradation of Ternary Dyes by Copper Sulfide Nanoparticles

Synthesis and Crystal Structures of Bis(diallydithiocarbamato)zinc(II) and Silver(I) Complexes: Precursors for Zinc Sulfide and Silver Sulfide Nanophotocatalysts

Thiourea‐Derived Single‐Source Molecular Precursor For Spin‐Coated PbS Thin Films

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