Controlled synthesis of CuO nanoparticles using TritonX-100-based water-in-oil reverse micelles

CuO nanoparticles were synthesized by TritonX-100 based water-in-oil reverse micelles system, and characterized by X-ray diffractometer (XRD) and transmission electron microscopy (TEM), respectively. The results indicated that the grain size, morphology and distribution were highly dependent on the ratio of water to surfactant (R). The control effect of water content dissolved in reverse micelles was attributed to the enhancement of the exchange rate of reactants among micelles and the relevant change in the interfacial film flexibility of reverse micelles with the increasing amount of water in the microemulsion.

CuO nanoparticles have been synthesized using microreactors made pf TritonX-100/nheatnol/cyclohexane/water W/O microemulsion system. Basic synthesis parameters were determined. The result of thermo-gravimetric/differential thermal analysis (TG/DTA) of the precursor products showed that the proper calcination temperature was about 500 °C. The nanoparticles were characterized by X-ray diffractometer (XRD), transmission electron microscopy (TEM) and UV­visible spectra. The results indicated that the grain size was highly dependent on the ratio of water to surfactant (R). With the R value increasing, the particle size became larger.Figure optionsDownload as PowerPoint slide