Degradation of chloramphenicol using Ti-Sb/attapulgite ceramsite particle electrodes

• Published in: Water environment research 2019-08, Vol.91 (8), p.756-769
• Main Authors: Sun, Yongjun, Chen, Aowen, Zhu, Sichen, Sun, Wenquan, Shah, Kinjal J., Zheng, Huaili
• Format: Article
• Language: English
• Subjects: Air flow; Analytical methods; attapulgite; Chloramphenicol; Chloromycetin; Conductivity; Current density; Degradation; Distance; electro catalytic oxidation; Electrodes; Electron microscopy; Energy consumption; Fluorescence; Fourier transforms; Infrared spectroscopy; Morphology; Parameters; particle electrode; pH effects; Physical characteristics; Removal; RESEARCH ARTICLE; Scanning electron microscopy; Wastewater
• ISSN: 1061-4303; 1554-7531
• DOI: 10.1002/wer.1106

Ti-Sb/attapulgite ceramsite particle electrodes were prepared for the efficient degradation of chloramphenicol (CAP) in wastewater. To observe the surface morphology and structural characteristics of the Ti-Sb/attapulgite ceramsite particle electrodes, Fourier transform infrared spectroscopy, X-ray fluorescence, scanning electron microscopy, and X-ray diffraction were used for characterization. Parameters affecting the degradation efficiency and the energy consumption of the Ti-Sb/attapulgite ceramsite particle electrodes, such as current density, electrode distance, initial pH, conductivity, air flow, and packing ratio, were examined. Results showed that the optimal conditions were 20 mA/cm² current intensity, 3 cm electrode distance, 5,000 μS/cm conductivity, 2.0 L/min air flow, 50.0% packing ratio, and initial pH 1. The removal efficiency of chloramphenicol was 73.7% under the optimal conditions, and the energy consumption was 191.3 (kW h)/kg CAP.