Mixed surfactant controlled syntheses of solid Ni2P and yolk-shell Ni12P5 via a hydrothermal route and their photocatalytic properties

作者：Liu Shuling; Lin Yang; Tong Jianbo

来源：Journal of Alloys and Compounds, 2015, 644: 140-146.

DOI：10.1016/j.jallcom.2015.04.193

• Ni2P
• Ni12P5
• Hydrothermal
• Surfactant
• Yolk-shell
• Photocatalysis

In this paper, Ni2P solid spheres and Ni12P5 yolk-shell microspheres have been fabricated successfully via two different hydrothermal systems, using sodium dodecyl benzene sulfonate/sodium dodecyl sulfate (SDBS/SDS) and sodium dodecyl benzene sulfonate/cetyltrimethyl ammonium bromide (SDBS/CTAB) as stabilized system, respectively. The yolk-shell Ni12P5 spheres exhibited the size of around 900 nm, which made up mainly the shells with a thickness of 110 nm and the cores with a diameter of 350 nm on average. With the heating time increasing from 0 to 36 h, Ni12P5 structures transformed from yolk-shell microspheres to hollow spheres. Based on a series of surfactant-dependent and time-dependent experiments, the optimum proportion of mixed surfactant and the formation mechanism of Ni12P5 yolk-shell microstructures were discussed. Importantly, the as-prepared Ni2P and Ni12P5 possess excellent photocatalytic activities for both degradation Congo red (CR) and Safranine T (ST) dyes.

• 出版日期2015-9-25
• 单位陕西科技大学