摘要：

研究了柠檬酸法制备的ZnO和Co₃O₄的单一氧化物，物理、简单化学复合氧化物和尖晶石型ZnCo₂O₄的光催化性能，及不同煅烧温度下ZnCo₂O₄的光催化活性。结果表明，催化活性顺序为物理复合氧化物<简单化学复合氧化物<单一氧化物<尖晶石型复合氧化物，150 mg物理复合氧化物对20 mg/L染料的光催化降解效率可达100%。

关键词: 氧化锌, 氧化钴, 尖晶石型ZnCo₂O₄, 光催化降解

Abstract:

The photocatalytic activities of ZnO,Co₃O₄ ,ZnCo₂O₄ ,the physical mixture of ZnO and Co₃O₄ and the simple chemical complex oxide which are fabricated with citric acid have been researched.The photocatalytic activities of ZnCo₂O₄ that are calcined at different temperatures have also been researched.The result reveals that the sequence of the photocatalytic activity are physical mixturesimple chemical complex oxidesingle oxidespinel oxide.The photodegradation rate with the physical mixture oxide could reach 100% when the dosage of photocatalyst is 150 mg and the concentration of reactive dyestuff is 20 mg/L.

Key words: ZnO , Co₃O₄ , ZnCo₂O₃, photodegradation

中图分类号: 

• O611.62

• X703