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.
Highlights
We have systematically studied the effect of cetyltrimethylammonium bromide (CTAB) concentration in the electrolyte bath, on the morphology and size of ZnO and CuO metal oxide NPs prepared by hybrid sacrificial anode electrochemical-thermal route
The crystallite size of both ZnO and CuO reduced with increase in concentration of CTAB in the electrolyte bath during electrolysis
The crystallite size of ZnO NPs was between 48-18 nm and for CuO it varied between 31-19 nm
Summary
EFFECT OF CTAB ON CuO AND ZnO NANOPARTICLES lurgy [1-4,5]. The CuO and ZnO nanomaterials are of special interest as they are cheap, easy to prepare by simple, low cost methods at normal temperatures [6]. They exhibit diverse nanostructure configurations and show superior performance in many applications
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