期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 281, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2020.119517
关键词
photocatalysis; Fe2+/Fe3+ pair; isopropanol degradation; water splitting; hydrogen
资金
- Ministry of Science and Technology(MOST), Taiwan [MOST 108-2923-E-002-006-MY3]
- Academia Sinica of Taiwan [AS-KPQ-106-DDPP]
The research focused on using a twin-reactor system with photo-Fenton technology to simultaneously produce hydrogen and degrade wastewater. By utilizing the Fe2+/Fe3+ pair for electron mediation and different catalysts, the system achieved higher hydrogen production and organic wastewater degradation efficiency.
This research investigated photo-Fenton enhanced in a twin-reactor for hydrogen evolution and wastewater photodegradation simultaneously. The twin-reactor, which was two coupled reactors divided by a membrane, can simultaneously photodegrade isopropanol wastewater and separate hydrogen from water splitting. Fe2+/Fe3+ pair was used as electron mediator in the twin reactor by counter-diffusing between hydrogen and photodegradation sides. Moreover, Fe3+ also triggered photo-Fenton reaction to enhance the degradation of organic wastewater. SrTiO3:Rh, Pt/SrTiO3:Rh and Ru/SrTiO3:Rh were used for hydrogen evolution. For isopropanol degradation, P25 (TiO2) and WO3 were applied. The light source was simulated sunlight using 300 W Xe lamps with AM1.5 filter. Compared with the single reactor, the isopropanol removal increased 125% and hydrogen evolution was up 37% due to H-2 separation and inhibition of reverse reaction of water splitting. In the twin reactor, 95% of pure hydrogen was obtained in the hydrogen evolution side, thus saved the cost of afterward purification.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据