High energy consumption is impedimental for eliminating refractory organic pollutants in water by applying advanced oxidation processes (AOPs). Herein, we develop a novel process to degrade and mineralize them like bisphenol A, et al, in chemical conjuncted Fe0-FeyCz/Fex , graphited ZIF-8 and rGO air-saturated aqueous suspension without additional energy. In this process, a strong Fe-π interaction occurs on the composite surface, causing the surface potential energy ~ 310.97-663.96 kJ/mol. The electrons for the adsorbed group of pollutants are found to delocalize to around the iron species and could be trapped by O2 in aqueous suspension , producing · OH, H and adsorbed organic cation radicals, which are hydrolyzed or hydrogenated to intermediate. The target pollutants undergo surface cleavage, and convert H2O to .OH, consuming chemical adsorption energy (~2.852 - 9.793 kJ/mol), much lower than that of AOPs. Our findings provide novel technology for water purification and bring new insights into pollutant control chemistry.
Keywords: cation-π interaction, •OH conversion, energy, organic pollutants, water purification
Wang, Yumeng and Lyu, Lai and Wang, Di and Yu, Han-Qing and Li, Tong and Gao, Yaowen and Li, Fan and C. Crittenden, John and Zhang, Lili and Hu, Chun, Cation-π Induced Cleavage of Organic Pollutants with H
2O to
. OH for Water Purification. Available at SSRN: https://ssrn.com/abstract=3845684 or http://dx.doi.org/10.2139/ssrn.3845684
This version of the paper has not been formally peer reviewed.
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