Picolinamide Functionalization on Carbon Nitride Edges for Enhanced Charge Separation and Photocatalytic Hydrogen Evolution.

Peiru Li, Siyuan Guo, Yunan Liu, Yanhong Lin, Tengfeng Xie

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Article in Nanomaterials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Peiru LiCollege of Chemistry, Jilin University, Changchun 130012, China.

Siyuan GuoCollege of Chemistry, Jilin University, Changchun 130012, China.

Yunan LiuCollege of Chemistry, Jilin University, Changchun 130012, China.

Yanhong LinCollege of Chemistry, Jilin University, Changchun 130012, China.

Tengfeng XieCollege of Chemistry, Jilin University, Changchun 130012, China.

Funding

National Natural Science Foundation of China No.22172057

6 · The paper itself

Abstract

The periodical distribution of N and C atoms in carbon nitride (CN) not only results in localized electrons in each tri-s-triazine unit, but oxidation and reduction sites are in close contact spatially, resulting in severe carrier recombination. Herein, the hydrothermal method was first employed to synthesize carbon nitride (HCN), and then picolinamide (Pic) molecules were introduced at the edge of the carbon nitride so that the photo-generated electrons of the whole structure of the carbon nitride system were transferred from the center to the edge, which effectively promoted the separation of photo-generated carriers and inhibited the recombination of carriers in the structure. The introduced picolinamide not only changed the π-conjugated structure of the entire system but also acted as an electron-withdrawing group to promote charge transfer. The photocatalytic hydrogen evolution rate (HER) of the optimized HCN-Pic-1:1 sample could reach 918.03 μmolg

Indexed as

carbon nitridephotocatalytic H2 productionpicolinamide doping

Identifiers

PMID40072163

DOI10.3390/nano15050361

PMCPMC11901953

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