Degradation of antipyrine in the Fenton-like process with a La-doped heterogeneous catalyst  

作　　者：Shicheng Wei Cuiping Zeng Yaobin Lu Guangli Liu Haiping Luo Renduo Zhang 

机构地区：[1]Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology,School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou 510006,China

出　　处：《Frontiers of Environmental Science & Engineering》2019年第5期17-27,共11页环境科学与工程前沿（英文）

基　　金：grants from the National Key R&D Program of China(Nos.2017YFB0903700 and 2017YFB0903703);the National Natural Science Foundation of China(Grant Nos.51608547,51278500 and 51308557);the Fundamental Research Funds for the Central Universities(181gpy43).

摘　　要：The aim of this study was to synthesize a novel lanthanum(La)doped catalyst and to investigate antipyrine removal in wastewater using the Fenton-like process with the catalyst.The La-doped Co-Cu-Fe catalyst was synthesized using the modified hydrothermal method.Results showed that the Ladoped catalyst had higher specific surface area and lower particle size than the catalyst without La doping(i.e.,the control)(267 vs.163 m2/g and 14 vs.32 nm,respectively).Under the conditions of catalyst dosage 0.5 g/L,H2O2 concentration 1.70 g/L,and NaHCO3 0.1g/L,the antipyrine removal within 60 min using the Fenton-like process with the La-doped catalyst was much higher than that with the control(95%vs.54%).The hydroxyl radical concentration with the La-doped catalyst within 60 min was two times higher than that with the control(49.2 vs.22.1 gg/L).The high catalytic activity of La-doped catalyst was mainly attributed to its high specific surface area based on the X-ray photoelectron spectroscopy result.Our La-doped catalyst should have great potential to remove antipyrine in wastewater using the heterogeneous Fenton-like process.

关 键 词：ANTIPYRINE LANTHANUM Catalyst FENTON-LIKE PROCESS 

分 类 号：O64[理学—物理化学]