Photoelectrocatalytic degradation of microcystin-LR using a dimensionally stable anode and the assessment of detoxification
作者： Yuan Zhao , Qianlong Fan , Xiaoyu Wang , Wenwen Zhang , Xinxin Hu
DOI: 10.1016/J.CEJ.2019.03.029
关键词:
摘要: Abstract Microcystins (MCs) pose a great threat to human health due their toxicity. In this study, photoelectrocatalysis was applied as an effective technology degrade MCs. The effects of different dimensionally stable anodes and cathodes were evaluated. Detoxification investigated using luminescence inhibition assay, micronucleus assay Vicia faba root tips single cell gel electrophoresis assay. results show that RuO2-TiO2/Ti stainless steel the best among six four tested for MCLR degradation. Compared photodegradation, photocatalysis electrocatalysis, obtained highest efficiency on degradation, nearly 100% at 254 nm 5.0 mA/cm2. degradation kinetics agreed with Langmuir-Hinshelwood kinetic model. When NaCl used electrolyte, reached even under 0.002 mol/L, which much better than Na2SO4, Na2HPO4 NaNO3. toxicity assays showed although completely degraded, acute still occurred in solution relative luminosities from 0 9.37%. However, DNA damage cells returned normal levels end reaction. This indicates genotoxicity cytotoxicity eliminated MCLR.
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