Details

Autor(en) / Beteiligte

• Ni, Yonghong
• Jin, Lina
• Hong, Jianming

Titel

Phase-controllable synthesis of nanosized nickel phosphides and comparison of photocatalytic degradation ability

Ist Teil von

• Nanoscale, 2011-01, Vol.3 (1), p.196-2

Ort / Verlag

England

Erscheinungsjahr

2011

Quelle

MEDLINE

Beschreibungen/Notizen

• In this paper, we employed a facile hydrothermal route to successfully synthesize nanosized nickel phosphide particles with controlled phases via selecting different surfactants at different temperatures and times. The phases of the as-obtained products were determined by X-ray powder diffraction (XRD) patterns and Rietveld refinement of XRD data. The morphologies of the products were characterized by (high resolution) transmission electron microscopy (HR/TEM) and field emission scanning electron microscopy (FESEM). Experiments indicated that pure Ni 2 P phase could be prepared when nontoxic red phosphorus and nickel dichloride were used as starting materials in the presence of polyvinylpyrrolidone (PVP, 30 K), sodium dodecylbenzene sulfonate (SDBS), cetyltrimethylammonium bromide (CTAB) or polyethylene glycol 10000 (PEG-10000) at 160 °C for 10 h. When acrylamide (AM) was selected as the surfactant, however, pure Ni 12 P 5 phase could be prepared by prolonging the reaction time to 20 h at 160 °C, or enhancing the reaction temperature to 180 °C for 10 h. Furthermore, the experiments indicated that the pure Ni 2 P phase possessed a stronger photocatalytic degradation ability than the pure Ni 12 P 5 phase. Phase-controllable synthesis of nickel phosphide nanocrystals has been successfully realized by a simple and reliable hydrothermal route.