过氧化氢
环境科学
催化作用
试剂
废水
碳酸氢盐
饮用水净化
析氧
工艺工程
化学
材料科学
制浆造纸工业
化学工程
环境化学
环境工程
工程类
生物化学
物理化学
电化学
有机化学
电极
作者
Chaoran Dong,Yaping Yang,Xuemin Hu,Yoonjun Cho,Gyuyong Jang,Yanhui Ao,Luyang Wang,Jinyou Shen,Jae Hyung Park,Kan Zhang
标识
DOI:10.1038/s41467-022-32410-0
摘要
Millions of families around the world remain vulnerable to water scarcity and have no access to drinking water. Advanced oxidation processes (AOPs) are an effective way towards water purification with qualified reactive oxygen species (ROSs) while are impeded by the high-cost and tedious process in either input of consumable reagent, production of ROSs, and the pre-treatment of supporting electrolyte. Herein, we couple solar light-assisted H2O2 production from water and photo-Fenton-like reactions into a self-cyclable system by using an artificial leaf, achieving an unassisted H2O2 production rate of 0.77 μmol/(min·cm2) under 1 Sun AM 1.5 illumination. Furthermore, a large (70 cm2) artificial leaf was used for an unassisted solar-driven bicarbonate-activated hydrogen peroxide (BAP) system with recycled catalysts for real-time wastewater purification with requirements for only water, oxygen and sunlight. This demonstration highlights the feasibility and scalability of photoelectrochemical technology for decentralized environmental governance applications from laboratory benchtops to industry.
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