Electrochemical degradation of bromophenol blue on porous PbO 2 –ZrO 2 composite electrodes
作者： Liman Zhang , Feng Wei , Qiang Zhao , Xin Chen , Yingwu Yao
DOI: 10.1007/S11164-019-04040-7
关键词: Chemistry 、 Porosity 、 Catalysis 、 Bromophenol blue 、 Electrolysis 、 Degradation (geology) 、 Electrochemistry 、 Electrode 、 Nuclear chemistry 、 Supporting electrolyte
摘要: The electrochemical performance of porous PbO2–ZrO2 composite electrode was studied with bromophenol blue (BPB) as the simulated pollutant. In process degradation, operational parameters were optimized, such initial BPB concentration, current density, pH values and supporting electrolyte (Na2SO4) concentration. results showed that COD removal efficiency could reach 96.9% 74.7%, respectively, after 90 min electrolysis under degradation concentration 30 mg L−1, density 40 mA cm−2, value 4 Na2SO4 solution 0.07 mol L−1. kinetic curves made clear followed pseudo-first-order reaction high correlation coefficients (R2 > 0.99). Initial applied greatly affected process, by value, influence minimal. Ultraviolet–visible spectra high-performance liquid chromatography analysis indicated a small amount intermediates produced during process. After for 90 min, almost completely removed. terms multiple aspects, had good development prospect in treatment wastewater.
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