The effect of cetyltrimethylammonium bromide on size and morphology of ZnO and CuO

Abstract

The nanoparticles (NP) ZnO and CuO were synthesized by electrochemical-thermal method. The influence of cetyltrimethylammonium bromide (CTAB) on size and morphology of NP was evaluated. They were characterized by powder X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), UV-Visible absorption spectroscopy. The average crystallite size and the average grain size of NP decreased with CTAB concentration. The CTAB significantly affected the morphology of CuO and ZnO NP. The regular spindle shape of CuO transformed into irregular spherical shape and the homogeneity in the morphology of spherical ZnO NP was lost with increase in CTAB concentration. The effect of morphology and size of ZnO on its photocatalytic activity was evaluated by subjecting methylene blue (MB) dye to photocatalytic degradation under the irradiation of UV light. The color removal of MB dye during electrolysis was monitored by UV-Visible spectroscopy. The highest photocatalytic activity was noticed for ZnO 10 mM CTAB.

Synthesis of Copper Oxide Nanoparticles Using Plant Leaf Extract of Catha edulis and Its Antibacterial Activity

“…e strong peaks at 1030 and 1053 cm −1 were due to C-O stretching vibration in the carboxylic group and flavanones. e characterized peaks observed at 1383 cm −1 were due to C-N stretching vibration in the amine group [44]. e strong bands at 1604 and 1638 cm −1 were due to aromatic C�C bending vibration, and absorption peaks at 2875 cm −1 and 2884 cm −1 were attributed to the asymmetric and symmetric C-H stretching mode caused by the phenolic compounds [24].…”

Effect of copper oxide nanoparticles and light-emitting diode irradiation on the cell viability and osteogenic/odontogenic differentiation of human stem cells from the apical papilla

“…A strong absorbance peak at 1041 cm −1 was attributed to the stretching vibrations of the C-O bond in the structure of the carboxylic group and flavonoids present in the structure of the pomegranate peel extract. The peak at 1382 cm −1 corresponded to the stretching vibration of the C-N bond in the amine group [ 39 ]. A strong absorbance band at 1623 cm −1 was attributed to the bending vibration at C = C. Absorbance at 2917 cm −1 was attributed to asymmetric and symmetric stretching vibrations of C-H in phenolic compounds.…”

“…A strong absorbance band at 1623 cm −1 was attributed to the bending vibration at C = C. Absorbance at 2917 cm −1 was attributed to asymmetric and symmetric stretching vibrations of C-H in phenolic compounds. Also, a wide band at 3402 cm −1 was attributed to stretching vibrations of the O–H band of the hydroxyl group [ 39 ]. The surface morphology of the synthesized CuONPs was inspected under the scanning electron microscopy (SEM).…”

Facile one-pot synthesis of CuO nanospheres: Sensitive electrochemical determination of hydrazine in water effluents

“…Due to the miniaturization and tuning of its morphological and nanomaterial features, extensive research has been focused by the research community in several applications of CuO nanomaterials, including solar cells [3], electrochromic devices [4], electrocatalysis [5][6][7], photocatalysis [8], gas sensing application [9] and supercapacitors [10]. The user-friendly features of CuO nanomaterials such as low cost, high stability and durability, and ecofriendliness, motivated many researchers to develop CuO nanostructures by various synthetic routes, including hydrothermal synthesis, thermal oxidation and decomposition, vapor-phase synthesis, electron beam lithography and ultrasonic irradiation [11][12][13]. However, a prolonged synthetic procedure and the usage of surfactants and toxic chemicals confine the utility of CuO nanostructures in real-time applications.…”