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以醋酸锌和硫代乙酰胺为原料,分别以水、离子液以及两者的混合液为溶剂,用超声法成功合成了不同粒径的ZnS纳米粒子。用X射线衍射、扫描电子显微镜、红外光谱以及紫外–可见吸收光谱等对所制备样品的晶型、形貌和光学特性进行表征;以紫外光为光源、甲基橙为目标降解物质评价了ZnS纳米粒子的光催化活性。结果表明:离子液体的引入使ZnS纳米粒子的粒径明显变小,带隙能量变大,离子液介质中合成的ZnS纳米粒子具有更高的光催化活性。
Zinc acetate and thioacetamide as raw materials, respectively, water, ionic liquids and a mixture of both as a solvent, the synthesis of different particle size ZnS nanoparticles by ultrasound. Morphology, morphology and optical properties of the prepared samples were characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy and UV-Vis absorption spectroscopy. UVS was used as the light source and methyl orange as the target degradation material to evaluate the properties of ZnS Photocatalytic Activity of Nanoparticles. The results show that the introduction of ionic liquid makes the particle size of ZnS nanoparticles become smaller and the bandgap energy becomes larger, and the synthesized ZnS nanoparticles in the ionic liquid have higher photocatalytic activity.