Study on CeO2/CuFe2O4 Catalytic Ozonation of Resorcinol

• 作者: Anwei WANG Hui HAN Meng SHEN Min SHAO Yushan WAN
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: CATALYTIC OZONATION CeO2/CuFe2O4 RESORCINOL STABILITY
• 年，卷（期）: 2019,（2）
• 页码范围: 220-225
• 页数: 6页
• 分类号: S

摘要

In order to improve the catalytic ozonation effect of resorcinol, the spinel CuFe2O4 was modified by doped CeO2, and X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for characterization analysis. The effects of composite catalyst CeO2/CuFe2O4 dosage, ozone dosage, initial pH and reaction temperature on degradation were studied, and the stability of the catalyst was tested. The results showed that the composite effect of CeO2/CuFe 2O 4 prepared by combustion method was good, and the catalyst presented a laminated structure, in which 30wt% CeO2/CuFe2O4 degradation effect was significant. The removal rate of resorcinol using CeO2/CuFe2O4 composite catalyst was higher than that using ozone or CuFe2O4 separately by 41.8% and 11.9%, respectively. In a reaction with resorcinol concentration of 100mg/L, the catalyst dosage of 1.0g/L, the ozone dosage of 2.5mg/(L·min), at pH=9, temperature of 20℃, for reaction time of 40min, the resorcinol removal rate was 88.5%. The catalyst CeO2/CuFe2O4 still showed good degradation effect after repeatedly using for 10 times, and the dissolution rate of metal ions was lower than that of CuFe2O4.