物理化学学报2026，Vol.42Issue(1)：104-114,11.DOI:10.1016/j.actphy.2025.100149
SBA-15模板化共价三嗪框架增强光催化产氢
SBA-15 templated covalent triazine frameworks for boosted photocatalytic hydrogen production
摘要
Abstract
Covalent triazine frameworks(CTFs)represent an attractive family of metal-free visible light-responsive covalent organic frameworks(COFs),possessing promising characteristics such as large specific surface area,rich nitrogen content,permanent porosity,and high thermal and chemical stability for photocatalytic hydrogen production via water splitting.Nevertheless,the majority of CTFs are confronted with difficulty in chemical synthesis and generally suffer from low electric conductivity and severe photogenerated charge carrier recombination during photocatalytic hydrogen evolution reaction(HER).The hydrogen-evolving performance highly depends on the structure of π-conjugated CTFs and the synthetic methods,and controlled synthesis of well-defined nanostructures is still highly challenging.In this work,we report the organic acid-catalyzed synthesis of porous CTF nanoarchitectures templated by mesoporous silica molecular sieve SBA-15 with a highly ordered hexagonal structure.The SBA-15-templated CTF-S2 nanorods exhibited a substantial increase in photocatalytic HER efficiency,with an impressive 14-fold enhancement compared to the micro-sized bulk CTF-1(4.1 μmol h-1).This remarkable improvement in the photocatalytic HER over SBA-templated CTF-S2 nanostructure is attributed to the extended visible light absorption,accelerated charge carrier transfer and the optimized band structure.关键词
光催化/析氢反应/共价有机框架/模板合成/多孔结构Key words
Photocatalysis/Hydrogen evolution reaction/Covalent organic frameworks/Template synthesis/Porous structure分类
化学化工引用本文复制引用
赵呈孝,李昭霖,吴东方,杨小飞..SBA-15模板化共价三嗪框架增强光催化产氢[J].物理化学学报,2026,42(1):104-114,11.基金项目
国家自然科学基金(22005149)资助项目 （22005149）
