Boosting the photosynthesis of hydrogen peroxide directly from pure water and air over S-scheme fiber heterojunction
The generation of solar H2O2 through the re-action of O2 and H2O is a cost-effective and environmental-friendly procedure.Nevertheless,most photocatalysts are only active when sacrificial donors are present,thereby limiting their practicality.Herein,the S-scheme fiber heterojunction Nb2O5@NiS(NONS)was fabricated as a catalyst for photo-catalytic hydrogen peroxide evolution through an electro-spinning-assisted ion exchange strategy.In situ X-ray photoelectron spectroscopy analysis was then used to in-vestigate the excellent performance(0.48 mmol g-1)of the optimized photocatalyst NONS-30 obtained directly from pure water and air through the S-scheme charge transfer path.Following scavenger capture experiments and electron spin resonance spectroscopy,an overlooked pathway was dis-covered that implicated 1O2 in the formation of H2O2.This work also revealed an alternative reaction pathway to produce H2O2 by fabricating fiber heterojunction photocatalysts.
Hubei Key Laboratory of Pollutant Analysis and Reuse Technology,Research Center for Transition and Development of Resources-exhausted City,College of Chemistry and Chemical Engineering,Huangshi Key Laboratory of Prevention and Control of Soil Pollution,Hubei Normal University,Huangshi 435002,China
Engineering Research Center for Clean Production of Textile Printing and Dyeing,Ministry of Education,Wuhan Textile University,Wuhan 430073,China
School of Chemistry,Chemical Engineering and Biotechnology,Nanyang
National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hubei ProvinceOpen Subject of Engineering Research Center for Clean Production of Textile Printing and Dyeing,Ministry of Education
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