摘要
以葡萄糖为还原剂、采用液相法首先制备了八面体Cu_2O光催化剂,然后以其为基体,通过原位氧化Cu_2O的方式构筑Cu_2O/CuO复合光催化剂。通过XRD、拉曼、XPS对其成分进行检测,TEM、SEM观察其粒径和形貌;研究了亚甲基蓝降解工艺条件,实验结果表明,ρ(亚甲基蓝)=5 mg/L的溶液100 mL、Cu_2O/CuO复合光催化剂的最佳添加量为10 mg、体系pH=11时亚甲基蓝的降解效果最好。通过对最佳条件下循环降解实验表明,Cu_2O/CuO复合光催化剂有着良好的循环稳定性能。
The octahedral Cu 2O photocatalyst was firstly prepared by the liquid phase method using glucose as the reducing agent,and then the Cu 2O/CuO composite photocatalyst was constructed by in situ oxidation of Cu 2O.XRD,Raman and XPS were used to detect its composition.The particle size and morphology were observed by TEM and SEM.The results of methylene blue degradation experiment showed that when the concentration of methylene blue was 5 mg/L and the volume is 100 mL,Cu 2O/CuO composite light was observed.The best effect of methylene blue was obtained when the optimal amount of catalyst was 10 mg and the pH of the system was 11.The experimental results of cyclic degradation under optimal conditions show that the Cu 2O/CuO composite photocatalysis has good cycled stability.
作者
张飞龙
闫全青
罗鹏飞
束敏
欧玉静
ZHANG Feilong;YAN Quanqing;LUO Pengfei;SHU Min;OU Yujing(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《化工科技》
CAS
2019年第2期20-27,共8页
Science & Technology in Chemical Industry
基金
甘肃省重点研发计划--工业类项目(1604GKCA023)
