期刊
JOURNAL OF NANOMATERIALS
卷 2016, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2016/4580516
关键词
-
资金
- RVO [61388980]
- NATO SPS Project [984599]
h-BN-TiO2 nanocomposites were synthesized by the thermal hydrolysis of titanium peroxo-complexes in the presence of exfoliated h-BN. The bulk h-BN was prepared by annealing mixture of boric acid and urea, and high intensity ultrasound was used for its exfoliation. The prepared samples were characterized by X-ray powder diffraction (XRD), infrared spectroscopy, Raman spectroscopy, electron spin resonance (ESR), high resolution electron microscopy, BET surface area, and BJH porosity measurement. The UV-Vis diffuse reflectance spectroscopy was employed to estimate band-gap energies. The photoinduced charge on the surface of h-BN-TiO2 nanocomposites was visualized using electric force microscopy (EFM). The photocatalytic activity was determined by azo dyes Orange II and Reactive Black 5 photobleaching. The highest rate constant.. = 0.0762 min(-1) and 0.0164 min(-1), under UV and visible light irradiation, respectively, showed sample denoted TiP050BN with moderate concentration of h-BN.
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