【摘要】 为了探究不同电极材料电生过氧化氢（H₂O₂）的性能及机理，选择石墨、钛、不锈钢和铱钽作为阴极材料，联合零价铁（nZVI）进行了左氧氟沙星（LVF）的降解实验.考察不同阴极材料在不同pH下电生过氧化氢的性能，并以石墨作为阴极材料，探究了离子对电生H₂O₂的影响及LVF的降解机理。结果表明，当石墨作为阴极材料，电生H₂O₂的性能最好，且H₂O₂通过单电子途径和双电子途径生成。当pH=3时，石墨作为阴极可通过产生羟基自由基（·OH）和电子直接转移（DET）有效降解LVF。实验证明石墨作为阴极可有效降解LVF，并高效产生H₂O₂，为电生过氧化氢的类芬顿技术提供数据支持。更多还原

【Abstract】 To explore the properties and mechanism of electrogenic hydrogen peroxide （H₂O₂） on different electrode materials,graphite,titanium,stainless steel,and iridium tantalum were selected as cathode materials,and levofloxacin （LVF） degradation experiments were carried out in combination with zero-valent iron （nZVI）.The properties of electrogenic hydrogen peroxide at different pH on different cathode materials were investigated and graphite was used as the cathode material to study ions effects on electrogenic H₂O₂ and the degradation mechanism of LVF.The results show that electrogenic H₂O₂ has the best performance when graphite is used as the cathode material,and H₂O₂ is generated by single-electron and two-electron pathways.At pH=3,graphite can effectively degrade LVF by forming·OH and electron direct transfer （DET）.The experimental results show that graphite as a cathode can effectively degrade LVF and efficiently produce H₂O₂,which provides data for the Fenton-like technology of electrogenic hydrogen peroxide.更多还原