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Article Abstract
In situ HO generation has been widely studied due to its effective disinfection properties and the absence of disinfection byproducts. However, aeration and oxygen-dependent bottlenecks have plagued the application potential of in situ HO production. Herein, a solar-powered floating system was proposed that could directly utilize "self-aeration" to generate HO. The "self-aeration" process is primarily driven by the "oxygen self-cycling" mechanism. Such a system is divided into a number of stages, including photothermal-derived water evaporation (0.5571 kg·m·h), oxidation of evaporated water to create oxygen (O) (754.5 μmol·h per 1 g catalyst), interfacial mass transfer of O into dissolved oxygen (DO), and reduction of DO to form HO (607 μmol·L·h per 1 g catalyst). Furthermore, a continuous flow reactor is also designed, achieving a disinfection efficiency of more than 99%. This work demonstrates the potential of in situ self-aeration for HO generation in water disinfection.
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| http://dx.doi.org/10.1021/acsami.5c09903 | DOI Listing |
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