Jul 2026· ACS Applied Materials and Interfaces· Vol 18, pp. 41052-41062· 0 citations· 61 references
Medicine
Abstract
Photocatalytic production of hydrogen peroxide (H2O2) from water and O2 using organic semiconductor photocatalysts is a promising approach for solar-to-chemical energy conversion. Recently, covalent organic frameworks (COFs) consisting of donor (D)-acceptor (A) conjugates have attracted attention owing to the tunable platforms for semiconductor synthesis. In this study, we synthesized a series of COFs consisting of 2,4,6-triformylphloroglucinol (Tp) as an A unit and different N-containing heterocycles bearing different numbers of terminal -NH2 groups as D units. The COF containing 2,4,6-triaminopyrimidine (PmA3) as the D unit exhibited the highest activity for photocatalytic H2O2 generation. Photoelectrochemical measurements and density functional theory calculations revealed that the high activity of PmA3-COF originates from the high electron conductivity owing to the multibranched triamine structure and high hole-trapping capability of the Pm ring. These properties enhanced oxidation of water by the photogenerated holes, resulting in efficient H2O2 generation.
Hydrogen peroxide (H2O2), as a green oxidant and an emerging energy carrier, has attracted considerable attention for its photocatalytic synthesis. Covalent organic frameworks (COFs) have emerged as ideal photocatalyst platforms owing to their structurally designable nature and tunable optoelectronic properties. In par...
Jing Liang, Yi-Qiang Bai, Zheng-Yin Yan et al.· Catalysts· 0 citations
Covalent organic frameworks (COFs) have attracted increasing attention as a new generation of photocatalytic platforms for hydrogen peroxide (H2O2) synthesis, benefiting from their precisely tailorable network architectures and outstanding optoelectronic characteristics. However, the traditional sealed-tube method for...
Ya-Yang Wang, Wei-Min Jiang, Yao-Wen Wang et al.· Journal of Colloid and Inter...· 0 citations
Solid molecular catalysts (SMCs) represent a promising class of photocatalysts. Here, we report the influence of distinct donor and acceptor moieties of terpyridine‐based SMCs on the photocatalytic hydrogen peroxide (H
2
O
2
) production. An aromatic and linear donor proved to be advantageous due to its favorable...
Sarah Brettschneider, Philipp U. Huth, Peter J. C. Hausoul et al.· ChemPhotoChem· 0 citations
Photocatalytic degradation has emerged as a sustainable and efficient alternative for mineralizing organic contaminants, owing to its utilization of abundant energy sources and environmental compatibility. To achieve efficient mineralization of organic pollutants in aqueous environments, a photosensitive zinc-based m...
Hui-Ping Chen, Hong-Ming Chen, Guang Che et al.· Crystal Growth & Design· 0 citations
Efficient production of hydrogen peroxide (H2O2) has attracted much interest because of the growing importance of H2O2 as an energy source. In this study, we have developed photocatalytic H2O2 production in ultrapure water catalyzed by an organic–inorganic hybrid photocatalyst. The hybrid photocatalyst was prepared b...
Covalent organic frameworks (COFs) have attracted considerable attention as promising photocatalysts for hydrogen peroxide (H2O2) production. To further improve their catalytic performance, a quaternary ammonium functionality was introduced into the bipyridine units of the COF via a post-synthetic modification strate...
Zhi-Hui Sun, Jia-Jia Li, Long-Yang Yang et al.· ACS Applied Energy Materials· 0 citations
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