期刊
APPLIED CATALYSIS A-GENERAL
卷 505, 期 -, 页码 70-76出版社
ELSEVIER
DOI: 10.1016/j.apcata.2015.07.028
关键词
Iron(III) Schiff base; Singlet oxygen; Photocatalytic degradation; Visible-light
资金
- National Natural Science Foundation of China [21407092, 21377067, 21207079, 21177072]
To degrade organic pollutants in water with hydrogen peroxide (H2O2) under visible light (lambda >= 420 nm), a novel water-insoluble iron Schiff base complex, iron(III)-bis-salicylaldehyde-o-aminophenol (Fe-SAP), was prepared and characterized using NMR, MS, IR, and UV-Vis spectroscopy. Rhodamine B (RhB) and salicylic acid were used as probes to characterize the photocatalytic system. High catalytic activity of Fe-SAP was observed over a wide range of pH values from 3 to 9. Scavenging studies of reactive oxygen species (ROS) and ESR experiments indicate that the primary ROS from photocatalytic conversion of H2O2 is O-1(2), rather than center dot OH. To date, there have been few reports on the generation of O-1(2) by iron organic complexes for the oxidative decomposition of organics. The catalyst stability and reusability are good, most likely because the water-insoluble Fe-SAP is able to reduce the damage to its organic ligands by center dot OH. Given these favorable characteristics, Fe-SAP exhibits excellent potential for practical application in removing refractory organic pollutants and pollutants of emerging concern from water and wastewater. (C) 2015 Elsevier B.V. All rights reserved.
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