Perfluoroalkyl-modified Covalent Organic Frameworks for Continuous Photocatalytic Hydrogen Peroxide Synthesis and Extraction in a Biphasic Fluid System

Overview

Journal Nat Commun

Specialty Biology

Date 2024 Sep 13

PMID 39271689

Authors

Chaochen Shao

Xiaohan Yu

Yujin Ji

Jie Xu

Yuchen Yan

Yongpan Hu

Youyong Li

Wei Huang

Yanguang Li

Affiliations

Soon will be listed here.

Abstract

HO photosynthesis represents an appealing approach for sustainable and decentralized HO production. Unfortunately, current reactions are mostly carried out in laboratory-scale single-phase batch reactors, which have a limited HO production rate (<100 μmol h) and cannot operate in an uninterrupted manner. Herein, we propose continuous HO photosynthesis and extraction in a biphasic fluid system. A superhydrophobic covalent organic framework photocatalyst with perfluoroalkyl functionalization is rationally designed and prepared via the Schiff-base reaction. When applied in a home-built biphasic fluid photo-reactor, the superhydrophobicity of our photocatalyst allows its selective dispersion in the oil phase, while formed HO is spontaneously extracted to the water phase. Through optimizing reaction parameters, we achieve continuous HO photosynthesis and extraction with an unprecedented production rate of up to 968 μmol h and tunable HO concentrations from 2.2 to 38.1 mM. As-obtained HO solution could satisfactorily meet the general demands of household disinfection and wastewater treatments.

Citing Articles

Enhancing photocatalytic hydrogen peroxide generation by tuning hydrazone linkage density in covalent organic frameworks.

Chakraborty A, Alam A, Pal U, Sinha A, Das S, Saha-Dasgupta T Nat Commun. 2025; 16(1):503.

PMID: 39779748 PMC: 11711387. DOI: 10.1038/s41467-025-55894-y.

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