溶剂热法制备碳纳米纤维负载Cu_2O光催化材料

Preparation of Carbon Nanofiber-Loaded Cu_2O Photocatalytic Materials with Solvothermal Method

以乙酸铜为原料,碳纳米纤维为基材,采用溶剂热法制备碳纳米纤维负载氧化亚铜(Cu2O/CNFs)光催化材料。比较了丙三醇、乙二醇和二甘醇三种不同反应溶剂对生成Cu2O的还原能力和分散性能;并以甲基橙为模拟有机污染物,研究Cu2O/CNFs复合材料在可见光照射下的光催化降解性能。实验结果表明,以丙三醇和乙二醇为溶剂时,生成产物为立方体状的Cu2O和Cu的混合物;以二甘醇为溶剂时制备产物为均匀分散的纯Cu2O纳米粒子。可见光下照射5h,丙三醇、乙二醇和二甘醇制备的Cu2O/CNFs复合材料对甲基橙降解率分别为73.5%、85%和92.5%。

This paper prepares carbon nanofiber-loaded cuprous oxide（Cu2O/CNFs） photocatalytic materials with solvothermal method with cupric acetate as the raw material and carbon nanofiber as base material; compares the reducing capacity and dispersing performance of three different reaction solvents-glycerin, glycol and diglycol to Cu2O generated; and studies photocatalytic degradation property of Cu2O/ CNFs composite materials exposed to visible light with methyl orange as simulated organic pollutant. The experimental result shows that, when glycerin and glycol are used as solvents, the product is mixture of Cu2O and Cu in cube shape; when diglycol is used as the solvent, the product is pure Cu2O nano particle with homodisperse. After exposed to visible light for 5 h, Cu2O/CNFs composite materials prepared by glycerin, glycol and diglycol respectively have a methyl orange degradation rate of 73. 5 %, 85 % and 92. 5 %.