A solar cell with an ultra-reactive confined microinterface for high-flux water purification
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | 101084 |
Journal / Publication | Chem Catalysis |
Volume | 4 |
Issue number | 9 |
Online published | 29 Aug 2024 |
Publication status | Published - 19 Sept 2024 |
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Abstract
Advanced oxidation processes represent effective approaches toward water purification, but they are often energy and chemical intensive. Here, we show a solar cell with a highly reactive microinterface for high-flux wastewater treatment with requirements for only water, oxygen, and sunlight. Experiments demonstrate that hydrogen peroxide is produced in a porous cathode via two-electron oxygen reduction and then flows to a porous photoanode surface, where it is instantly activated to hydroxyl radicals (center dot OH) light and integrated with indigenous center dot OH generated via one-electron water oxidation. Accordingly, a microscale region (similar to 150 mu m for thickness) with high-density center dot OH (similar to 2.5 mM) is successfully constructed but remains spatially constrained on the photoanode surface. Refractory pollutants (such as norfloxacin) pass through this microinterface successively and are degraded rapidly (>99% similar to 0.6-s retention time) due to violent collision between center dot OH and targets, even after 360 h of long-term operation. Our findings highlight an innovative catalytic platform design scheme for efficient water purification.
© 2024 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
© 2024 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Citation Format(s)
A solar cell with an ultra-reactive confined microinterface for high-flux water purification. / Zhang, Jun; Qu, Songying; Lin, Lin et al.
In: Chem Catalysis, Vol. 4, No. 9, 101084, 19.09.2024.
In: Chem Catalysis, Vol. 4, No. 9, 101084, 19.09.2024.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review