Removal of benzotriazole by heterogeneous photoelectro-Fenton like process using ZnFe2O4 nanoparticles as catalyst.
ZnFe2O4 nanoparticles (ZFNPs) were developed as catalyst for the degradation of benzotriazole (BTA) by heterogeneous photoelectro-Fenton (PE-Fenton) like process. ZFNPs were prepared by a co-precipitation process and then characterized with transmission electron microscopy (TEM), X-ray fluorescence (XRF), X-ray diffraction (XRD) and BET surface area. Using such ZFNPs as catalyst, the degradation of BTA was investigated. Due to the high catalytic activity of ZFNPs, PE-Fenton like process showed efficient degradation of BTA. The influencing factors such as pH, dosage of ZFNPs, applied potential and initial concentration of BTA were systematically investigated. Under the optimum conditions, 91.2% of BTA was removed after 180 min treatment.
School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. wjf8047@163.com
Junfeng
J
Wu
Wenhong
W
Pu
Changzhu
C
Yang
Man
M
Zhang
Jingdong
J
Zhang
D057919:Biological Oxygen Demand Analysis; D002384:Catalysis; D002853:Chromatography, Liquid; D004560:Electricity; D005296:Ferrous Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D013058:Mass Spectrometry; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010777:Photochemistry / Q000379:methods*; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D014230:Triazoles / Q000302:isolation & purification*; D014961:X-Ray Diffraction; D015032:Zinc / Q000737:chemistry*
C045076:Fenton's reagent; D005296:Ferrous Compounds; D012996:Solutions; D014230:Triazoles; C012771:benzotriazole; D006861:Hydrogen Peroxide; D007501:Iron; D015032:Zinc