Preparation of Nano Nickel by Hydrothermal Method and Study on Photocatalytic Degradation of Methylene Blue

• 1、Gansu Jingheyuan Environmental Protection Technology Co.Ltd, Lanzhou Gansu 730000
• 2、Baiyin of Gansu Province ecological environmental Monitoring Centre, Baiyin Gansu 730090
• 3、Gansu Province Environmental Monitoring, Lanzhou Gansu 730020

Abstract：The liquid phase reduction method was used to reduce the aqueous solution of nickel acetate with sodium hypophosphite at a certain temperature. Then the Ni nanomaterials were prepared using d-l tartaric acid as a surfactant. The composition, structure, microstructure and photocatalytic properties of the samples were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and ultraviolet-visible spectrophotometer (UV-vis). The results showed that the prepared Ni nanomaterials had high purity, no crystalline impurities, and the morphology was an evenly dispersed spherical particle size of about 100 nm-500 nm. The photocatalytic performance of Ni nanomaterials for the degradation of methylene blue was tested by using xenon lamplight source (HSF-F300) to simulate sunlight. It indicates that Ni nanomaterials have high catalytic activity, can improve photocatalytic speed and degradation rate, and can be used as catalysts for photocatalytic methods. At the same time, the magnetic property of Ni can be used to recover the catalyst without secondary pollution.

Keywords： Ni nanomaterials, photocatalysis, Environmental Pollution