Hydrogen-bonded organic frameworks for photocatalytic synthesis of hydrogen peroxide.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40069215.
- Also identified by DOI 10.1038/s41467-025-57939-8 and PMC identifier 11897405.
- Licence recorded as CC BY-NC-ND.
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Abstract
Photocatalysis provides a sustainable and environment-friendly strategy to produce H<sub>2</sub>O<sub>2</sub>, yet the catalytic efficiency of H<sub>2</sub>O<sub>2</sub> overall photosynthesis (O<sub>2</sub> + 2H<sub>2</sub>O → 2H<sub>2</sub>O<sub>2</sub>) needs to be further improved, especially in the absence of additional cocatalysts, photosensitizers and sacrificial agents. Here we find that hydrogen-bonded organic frameworks can serve as photocatalysts for H<sub>2</sub>O<sub>2</sub> overall photosynthesis under the above-mentioned conditions. Specifically, we constructed a donor-acceptor hydrogen-bonded organic framework that exhibits a high photocatalytic activity for H<sub>2</sub>O<sub>2</sub> overall photosynthesis, with a production rate of 681.2 μmol g<sup>-1</sup> h<sup>-1</sup>. The control experiments and theoretical calculation revealed that the hydrogen-bonded organic frameworks with donor-acceptor structures can not only accelerate the charge separation and transfer but also optimize the reaction pathways, which significantly boosts the photocatalytic efficiency in H<sub>2</sub>O<sub>2</sub> overall photosynthesis. This work provides insights into the design and development of efficient photocatalysts for overall H<sub>2</sub>O<sub>2</sub> photosynthesis.