Conjugated Polyelectrolytes/Sucrose‐Doped Hydroxyl‐Rich Carbon Nitride Heterojunctions for Photocatalytic Hydrogen Evolution: Morphology Control, Interfacial Modulation, and Energy Band Engineering DOI
Li Yang, Wei Zhou, Maowei Dou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Abstract Herein, a novel, ecofriendly and facile strategy have been introduced to fabricate conjugated polyelectrolytes (CPEs)‐assisted hydroxylated CN (CNOH) heterojunctions for enhancing photocatalytic hydrogen evolution (PHE). This work synthesizes CNOH nanosheets utilizing urea‐sucrose aqueous solution as the precursor. Subsequently, this incorporates CPEs, including donor–donor (D–D) cationic polyelectrolyte (PFNBr) an anionic donor–acceptor (D–A) CPEs (PCP‐2F‐Li), respectively exfoliate CNOHx into folded, porous lamellar nanostructure with dispersed nanofragments on nanosheets, where PFNBr or PCP‐2F‐Li can be uniformly form type‐II y%PFN/CNOHx y%PCP/CNOHx heterojunctions. Optimally, 3%PFN/CNOH0.5 1%PCP/CNOH1 (1.5 wt% Pt) demonstrate PHE rates of 22.75 24.01 mmol g⁻¹ h⁻¹ under visible‐light irradiation (600 mW cm⁻ 2 ), outperforming that pristine bulk carbon nitride (BulkCN) by 13.87 14.64 times. The remarkable enhancement in performance is attributed well‐matched energy levels between CNOH, increased specific surface area facilitated CPEs‐promoted exfoliation, broadened visible light absorption due sucrose doping, strengthened interfacial interactions bonding π–π stacking, improved hydrophilicity conferred doping CNOH. presents novel design CPEs/CNOH effect, thus advancing development efficient sunlight‐driven chemical reactions.

Language: Английский

Conjugated Polyelectrolytes/Sucrose‐Doped Hydroxyl‐Rich Carbon Nitride Heterojunctions for Photocatalytic Hydrogen Evolution: Morphology Control, Interfacial Modulation, and Energy Band Engineering DOI
Li Yang, Wei Zhou, Maowei Dou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 29, 2025

Abstract Herein, a novel, ecofriendly and facile strategy have been introduced to fabricate conjugated polyelectrolytes (CPEs)‐assisted hydroxylated CN (CNOH) heterojunctions for enhancing photocatalytic hydrogen evolution (PHE). This work synthesizes CNOH nanosheets utilizing urea‐sucrose aqueous solution as the precursor. Subsequently, this incorporates CPEs, including donor–donor (D–D) cationic polyelectrolyte (PFNBr) an anionic donor–acceptor (D–A) CPEs (PCP‐2F‐Li), respectively exfoliate CNOHx into folded, porous lamellar nanostructure with dispersed nanofragments on nanosheets, where PFNBr or PCP‐2F‐Li can be uniformly form type‐II y%PFN/CNOHx y%PCP/CNOHx heterojunctions. Optimally, 3%PFN/CNOH0.5 1%PCP/CNOH1 (1.5 wt% Pt) demonstrate PHE rates of 22.75 24.01 mmol g⁻¹ h⁻¹ under visible‐light irradiation (600 mW cm⁻ 2 ), outperforming that pristine bulk carbon nitride (BulkCN) by 13.87 14.64 times. The remarkable enhancement in performance is attributed well‐matched energy levels between CNOH, increased specific surface area facilitated CPEs‐promoted exfoliation, broadened visible light absorption due sucrose doping, strengthened interfacial interactions bonding π–π stacking, improved hydrophilicity conferred doping CNOH. presents novel design CPEs/CNOH effect, thus advancing development efficient sunlight‐driven chemical reactions.

Language: Английский

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