Facile synthesis of hexagonal Ni0.85Se nanosheet and its application as adsorbent and catalyst to dyes

Abstract We present a facile hydrothermal approach to synthesize Ni 0.85 Se nanosheets, in which NiCl 2 and Na 2 SeO 3 were used as precursors. The characterization results indicate that the Ni 0.85 Se nanosheets possess hexagonal crystal structure and large specific surface area. Significantly, the Ni 0.85 Se nanosheets showed excellent adsorption to methylene blue (MB) and catalytic activity to the hydrogenation of p-nitrophenol (PNP) in presence of NaBH 4 .