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以氯化铜和硫代乙酰胺为原料,聚乙二醇400(PEG400)为表面活性剂,采用水热法在160℃下反应10h成功制备了CuS纳米管和CuS纳米颗粒。用X射线粉末衍射仪(XRD)、扫描电子显微镜(SEM)、N_2吸脱附和荧光光谱仪(PL)多种手段对产品进行表征。以罗丹明B、甲基橙为目标降解物,考察了CuS纳米管和纳米颗粒的光催化活性。结果表明:所制备的产品为六方相CuS;PEG400对产品的形貌有很大影响;CuS纳米管在紫外光照射140min后对罗丹明B和甲基橙的降解率达到81.5%和87.9%,CuS纳米颗粒对罗丹明B和甲基橙的降解率约为63.5%和66.6%。CuS纳米管的光催化活性明显优于CuS纳米颗粒。
CuS nanotubes and CuS nanoparticles were successfully prepared by using copper chloride and thioacetamide as raw materials and polyethylene glycol 400 (PEG400) as surfactant. The hydrothermal method was used to react at 160 ℃ for 10h. The products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), N 2 desorption and fluorescence spectrometry (PL). The photocatalytic activities of CuS nanotubes and nanoparticles were investigated with rhodamine B and methyl orange as degradation products. The results show that the prepared product is hexagonal phase CuS; PEG400 has a great influence on the morphology of the product; the degradation rate of CuS nanotubes to rhodamine B and methyl orange is 81.5% and 87.9% after 140min UV irradiation, The degradation rates of CuS nanoparticles to rhodamine B and methyl orange were about 63.5% and 66.6%. The photocatalytic activity of CuS nanotubes is obviously better than CuS nanoparticles.