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Enhanced Piezocatalytic Performance through Self-Assembly Synthesis of Carbon-Rich Graphitic Carbon Nitride

Release date:

Dec 10,2025

ABSTRACT:Piezocatalysis is an emerging catalytic method that efcientlyharnesses mechanical energy from the environment and converts it into electricalenergy to drive chemical reactions. Graphitic carbon nitride (CN), as anonmetallic piezocatalyst, offers significant cost advantages and environmentafriendliness. However, enhancing the catalytic efciency of pristine CN ishindered by its weak adsorption ability and piezoelectric response. To overcomethese challenges, this study introduces dicarboxylic acid as a precursor for CNsynthesis, resulting in carbon-rich CN through a self-assembly process thatenables precise control over the C/N ratio at the molecular level. Compared topristine CN, carbon-rich CN exhibits enhanced cationic substrate adsorptiondue to altered zeta potential and an improved piezoelectric response stemmingfrom reduced structural symmetry, These dual enhancements facilitate strongel3substrate-catalyst interactions and accelerate substrate decomposition, therebytripling the piezocatalytic activity of CN. 'This research introduces a novel approach for designing eficient and environmentally friendly piezocatalysts while contributing to a deeper understanding of piezocatalytic mechanisms.