The effect of complexing agent on crystal growth, structure and properties of nanostructured Cu2−xS thin films

Surface defect engineering of mesoporous Cu/ZnS nanocrystal-linked networks for improved visible-light photocatalytic hydrogen production

“…2c), consistent with other reported results. 22 Generally, the 23 while that for the compounds containing Cu 2+ ions locates around 933-935 eV, 24 accompanying with a characteristic "shake-up" satellite peak at 940-945 eV. Taken together the SAED analysis, these results are consistent with the presence of Cu 2 S species in the ZnS lattice.…”

Engineering Charge Transfer Characteristics in Hierarchical Cu2S QDs @ ZnO Nanoneedles with p–n Heterojunctions: Towards Highly Efficient and Recyclable Photocatalysts

“…The peak centered at 531.2 eV (Figure 5c) corresponds to the O 1 s peak of ZnO [75]. The Cu 2 p peaks located at 932.3 eV and 952.2 eV (Figure 5d) are consistent with the binding energies of the Cu 2 p 3/2 and Cu 2 p 1/2 for Cu + in Cu 2 S, respectively [76]. For the ZnO@Cu 2 S NMSHs, both the asymmetric Cu 2 p peaks with shoulders on the higher binding energy sides of the Cu 2 p lines and the satellite peaks which can be found at the higher binding energy direction in Figure 5d can prove that the Cu 2+ ions are also present in the samples [77,78].…”

Tailoring Surface Morphology for Characteristic Exciton–Plasmon Resonances in Self-Assembled CuS Nanostructured Films

“…The effect of EDTA concentration shows rather a nonlinear response to the nucleation and growth of films because of the opposite trait of this reactant. The anionic and acidic nature of this ligand generates hydrolytic decomposition in equilibrium to evenly suppresses the availability of Cu + /Cu 2+ and S 2– /S – ions by slowing their release in solution. , This type of nucleation process affirms the ion-by-ion growth to avoid immediate precipitation and therefore helps to form stable complexes . So, when EDTA replaces TX-100 with equal concentration in sample E-50, the competing reactions between both precipitation processes lead to the formation of superfluous agglomerated constellations along with dimensionally constrained vertical nanoflakes, which nonlinearly increases the surface roughness and gives the maximal decrease in the thickness of film, as shown in Table .…”

“…Therefore, they provide significant adsorption dynamics that helps to reduce film interfacial tension with the glass substrate during growth to provide nanostructured films of higher homogeneity and thickness. In contrast to it, the other chosen option is anionic in nature, i.e., ethylenediaminetetraacetic acid (EDTA), a tetravalent molecule of a family of aminopolycarboxlic acid ligands . The complexes of EDTA usually bind to a metal cation through its two amines and four carboxylates in covalent bonding, as shown in Figure (a), which can suppress their release in solution to significantly tune the morphology of the nanostructure.…”

“…In contrast to it, the other chosen option is anionic in nature, i.e., ethylenediaminetetraacetic acid (EDTA), a tetravalent molecule of a family of aminopolycarboxlic acid ligands. 20 The complexes of EDTA usually bind to a metal cation through its two amines and four carboxylates in covalent bonding, as shown in Figure 1(a), which can suppress their release in solution to significantly tune the morphology of the nanostructure. These reactants of opposite nature can commute independently in ion exchange and collision mechanism to provide novelty in each set of nanostructuring.…”