Surfactant Assisted Synthesis of Copper Oxide Nanoparticles for Photocatalytic Degradation of Methylene Blue in the Presence of Visible Light

Effect of the Concentration and the Type of Dispersant on the Synthesis of Copper Oxide Nanoparticles and Their Potential Antimicrobial Applications

“…00-41-254) with lattice parameters a = 4.68 Å, b = 3.42 Å, c = 5.12 Å, and β = 99.42°. Similar results were previously reported by Ganga et al, Rao et al, Reddy et al, and Siddiqui et al when SDS was used as a dispersant and also by Mayekar et al and Shahmiri et al when PVP was used as a dispersant. Further, the elemental analysis of samples MBS01 (Cu = 39.72%, O = 60.28%) and MBP01 (Cu = 43.23%, O = 56.77%) shows that the calculated atomic Cu/O ratio is 0.7 and 0.8, respectively, which is close to 1.0 (the theoretical value for CuO).…”

“…Finally, the crystallite size is calculated using the Scherrer formula from the width of the (111) plane of XRD spectra and is found to be 13.4 and 17.0 nm for samples MBS01 and MBP01, respectively (Table ). When SDS was used, similar crystallite mean diameters of 13.5 and 15.0 nm were, respectively, reported by Ganga et al and Rao et al In contrast, a bigger crystallite size of 52.1 nm was reported by Mayekar et al when PVP was employed.…”

“…In fact, diverse shapes of CuO nanostructures were obtained when different Cu/SDS ratios were used. Formation of CuO nanorods (Cu/SDS = 0.1), CuO facets broken flower nanoparticles (Cu/SDS = 0.2), CuO rod- and flake-shaped nanoparticles (Cu/SDS = 0.6), and cubelike nanoparticles (Cu/SDS = 3.7) have previously been reported.…”

“…When ligands are used in a colloidal synthesis of nanoparticles, the interaction between them allows for self-assembly of nanoparticles in an ordered structure . Many authors have reported the use of various dispersants during the synthesis of copper oxide nanoparticles, such as cetyl trimethyl ammonium bromide (CTAB), , ethylene glycol, polyacrylamide (PAM), poly­(ethylene glycol) (PEG), polyoxyethylated lauryl ether surfactant (Brij 30), poly­(vinylpyrrolidone) (PVP), ,,− sodium dodecyl benzene sulfonate (SDBS), sodium dodecyl sulfate (SDS), − sodium polyacrylate, Triton X-100, , among others.…”

Easy, Quick, and Reproducible Sonochemical Synthesis of CuO Nanoparticles

“…When the synthesis conditions are [CTAB]< CMC, isolated monomers stabilize the nanoparticles. However, when [CTAB]>CMC, CTAB acts as a micellar template to give rise to various forms, such as spheres, rods, wires, and others [ 27 , 28 , 29 , 30 , 31 ]. Therefore, controlling the concentration of CTAB used can allow one to obtain the desired morphology.…”