化学工程
活性炭
吸附
电化学
碳纤维
降级(电信)
材料科学
激进的
核化学
电催化剂
苯酚
作者
Can Zuo,Lingfeng Li,Wenqing Chen,Zhe Zhang
标识
DOI:10.1016/j.apsusc.2021.149546
摘要
Abstract The electro-Fenton (EF) process combines an oxygen reduction reaction (ORR) and Fenton-like reaction for application in water treatment. However, many electrode designs simply aim at H2O2 production or catalyze either the ORR or Fenton-like reaction. This paper explored the effect of pyrolysis on MIL-101(Fe) and found that a thermal treatment at 310 °C (310T) partly maintained the original crystal structure but exposed more Fe sites and oxygen vacancies (OVs). The fabricated 310T/CB@NF gas diffusion electrode had a 4e-ORR tendency, although it exhibited good performance even at low voltages (1.2 V) with the detected current below 10 mA. In the assessment of the H2O2 production, ability as a Fenton reagent and DCF removal, the EF process exhibited a synergy between 310T and carbon black (CB). 310T manifested good Fenton activity on the Fe sites and OVs and directly worked toward the DCF degradation. CB with a high ORR catalytic activity provided a basis for the high H2O2 yield, which is indirectly conducive to the DCF removal.
科研通智能强力驱动
Strongly Powered by AbleSci AI