articleAdvanced Functional MaterialsMar 25, 2022Closed access

Semiconducting Metal–Organic Frameworks Decorated with Spatially Separated Dual Cocatalysts for Efficient Uranium(VI) Photoreduction

KYKaifu YuLTLi TangXCXin CaoZGZhenghong GuoYZYang Zhang

Southwest University of Science and Technology

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Abstract

Abstract Reduction of soluble hexavalent uranium (U(VI)) to sparingly soluble tetravalent uranium (U(IV)) with semiconductor photocatalysts is recognized as a novel, green, and simple U‐extraction method. Furthermore, effective charge separation and utilization are critical factors to achieve high‐efficiency U(VI) photoreduction. Herein, a UiO‐66‐based heterostructured photocatalyst (MnO x /UiO‐66/Ti 3 C 2 T x ) with spatially separated dual cocatalysts (MnO x nanoparticles and Ti 3 C 2 T x MXene nanosheets) is successfully developed for efficient U(VI) photoreduction without sacrificial agents. As co‐catalysts, MnO x nanoparticles favor the trapping of holes, while Ti 3 C 2 T x MXene nanosheets tend to…

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268
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Authors

11

Topics & keywords

Topics
Keywords
  • Photocatalysis
  • Materials science
  • Uranium
  • Hexavalent chromium
  • Extraction (chemistry)
  • Metal
  • Nanoparticle
  • Catalysis
UN Sustainable Development Goals
  • Life below water
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