海洋科学2023，Vol.47Issue(10)：1-9,9.DOI:10.11759/hykx20230320001
氧掺杂碳气体扩散电极用于电催化产活性氧抗菌防污研究
Electrocatalytic production of reactive oxygen species with oxygen-doped carbon-based gas diffusion electrode for anti-bacterial antifouling
摘要
Abstract
Hydrogen peroxide(H2O2)and other reactive oxygen species(ROS)have gained considerable attention for wastewater treatment and disinfection because they are ecofriendly and highly efficient.The electrocatalytic production of H2O2 is an effective method for generating reactive species in real time for on-site applications.However,most of the reported high-performance catalysts are synthesized in powder form,which is not conducive to direct application.Therefore,exploring novel electrode preparation methods for generating H2O2 and ROS is particularly important.Herein,a spray-pyrolysis strategy is employed to deposit highly active oxidized carbon black(O-CB)catalysts onto a carbon felt substrate.Further,polytetrafluoroethylene(PTFE)is added to improve the oxygen diffusion on the electrode surface.The results show that the O-CB/PTFE-5 wt%electrode can achieve effi-cient H2O2 production(27.19 mg·L-1·(mg catalyst)-1·cm-1·h-1).Results of antibacterial experiments demonstrate that electrocatalytic production of ROS using an O-CB/PTFE electrode can achieve disinfection efficiencies of 97.69%and 99.99%within 60 and 120 min,respectively,when directly applied to the typical marine fouling mi-croorganism Pseudomonas sp.关键词
活性氧/H2O2/电催化杀菌/氧化炭黑/抗菌防污Key words
reactive oxygen species/H2O2/electrocatalytic disinfection/oxidized carbon black/antibacterial antifouling分类
生物科学引用本文复制引用
李建华,王楠,段继周,侯保荣..氧掺杂碳气体扩散电极用于电催化产活性氧抗菌防污研究[J].海洋科学,2023,47(10):1-9,9.基金项目
中国科学院基础前沿科学研究计划从0到1原始创新项目(ZDBS-LY-DQC025) （ZDBS-LY-DQC025）
山东省自然科学青年基金项目(ZR2022QD001)Key Research Program of Frontier Sciences,Chinese Academy of Sciences,No.ZDBS-LY-DQC025 （ZR2022QD001）
Shandong Provincial Natural Science Youth Fund Project,No.ZR2022QD001 （）
