Photo-Fenton removal of tetracycline hydrochloride using LaFeO3 as a persulfate activator under visible light.
In this work, LaFeO3 nanoparticles were fabricated by a facile sol-gel method and applied to degrade tetracycline hydrochloride (TC-HCl) through heterogeneous activation of persulfate under visible-light illumination. The structure, compositions, photocatalytic properties, and morphological features of the as-obtained sample were investigated by XRD, XPS, DRS, and FESEM techniques. Optimizations of dosage of LaFeO3 (0-0.4 g/L), dosage of PS (0-4 g/L), concentration of TC-HCl (10 ppm-80 ppm), and pH of initial solution (2.09-9.59) were conducted. Radical trapping experiments indicated that SO4- was the dominant radical for TC-HCl removal while OH was also involved. In addition, LaFeO3 was proved with excellent stability and reusability in degrading TC-HCl molecules in the Vis/LaFeO3/PS system. The findings of this work revealed the potential application of the Vis/LaFeO3/PS system toward degrading organic pollutants in wastewater.
['Feng|Qinqin|Q|', 'Zhou|Jiabin|J|', 'Luo|Wenjia|W|', 'Ding|Lidan|L|', 'Cai|Weiquan|W|']
D002384:Catalysis D008027:Light D053758:Nanoparticles D055668:Photochemical Processes D013752:Tetracycline D062065:Waste Water D014874:Water Pollutants, Chemical
Photo-Fenton Persulfate Visible light LaFeO(3)