In-situ production of singlet oxygen by dioxygen activation on iron phosphide for advanced oxidation processes
Zheng, Ningchao 1He, Xi 1Hu, Ruiting 1Wang, Ruilin 1Zhou, Quan 1Lian, Yekai 1Hu, Zhuofeng1
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作者信息
1. Sun Yat sen Univ
折叠
Abstract
In this study, we delicately design a novel iron-based dioxygen activation system for sustainable production of O-1(2) on iron phosphide (FeP). This is the first time to realize the( 1)O(2) production on Fe-based dioxygen activation. Unlike traditional iron-based materials that only activate dioxygen, this delicately designed FeP can simultaneously activate dioxygen and adsorb some generated center dot OH. Those center dot OH can react with O-2(center dot-)/HO2 center dot. Thus, the center dot OH-mediated reaction can in-situ occur on the surface of FeP to rapidly produce O-1(2). As a result, the FeP exhibits remarkably higher degradation activity for various organic pollutants and pollutants in real aquatic systems in absence of light, electricity and other oxidants. Therefore, this study provides a green strategy to generate( 1)O(2) for environmental remediation and also demonstrates a new role of surface-bound center dot OH in contributing to the O-1(2) production.
NSTL
Elsevier