Photocatalytic Valorization of Plastic Waste over Zinc Oxide Encapsulated in a Metal–Organic Framework

The conversion of waste plastic into high‐value‐added chemicals is regarded as a promising approach for relieving global plastic pollution and contributing to the circular economy. Herein, a partial calcination strategy is developed to fabricate a zinc oxide/UiO66‐NH2 (ZnO/UiO66‐NH2) heterojunction, in which ZnO is encapsulated in porous UiO66‐NH2 for the photocatalytic valorization of plastic. This strategy preserves the framework structure of UiO66‐NH2, thus enabling the formation of ZnO with ultra‐small size distributed inside the skeleton. The synergistic effect of the obtained ZnO/UiO66‐NH2 heterojunction facilitates providing an efficient channel for carrier/mass transfer and guarantees structural stability. As a result, ZnO/UiO66‐NH2 exhibits high activity for converting polylactic acid (PLA) and polyvinyl chloride (PVC) into acetic acid, coupled with H2 production. This work provides a feasible strategy for rationally designing heterojunction photocatalysts, as well as an insight into understanding the process of photocatalytic valorization of plastic.

• Publication year

  2023

• Venue

  Advanced Functional Materials

• Publication date

  2023-04-21

• Fields of study

  Not labeled

• Identifiers
  DOI 10.1002/adfm.202214839
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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