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Updated: Oct 31, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Graphene Oxide-Assisted Covalent Triazine Framework for Boosting Photocatalytic H2 Evolution
Cheng Liu1,2, Yongchao C Wang2, Qing Yang1
1College of Chemistry, Sichuan University, 610064, Chengdu, China.
Abstract:
Covalent triazine frameworks (CTFs) with two-dimensional structures have exhibited promising visible-light-induced H2 evolution performance. However, it is still a challenge to improve their activity. Herein, we report π-conjugation-linked CTF-1/GO for boosting photocatalytic H2 evolution. The CTF-1/GO hybrid material was obtained by a facile low-temperature condensation of 1,4-dicyanobenzene in the presence of GO. The results of photocatalytic H2 evolution indicate that the optimum hybrid, CTF-1/GO-3.0, exhibited an H2 evolution rate of 2262.4 μmol ⋅ g-1 ⋅ h-1 under visible light irradiation, which was 9 times that of pure CTF-1. The enhanced photocatalytic performance could be attributed to the fact that GO in CTF-1/GO hybrids not only acts as an electron collector and transporter like a "bridge" to facilitate the separation and transfer of photogenerated charges but also shortens the electron migration path due to its thin sheet layer uniformly distribution over CTF-1. This work could help future development of novel conjugated CTF-based composite materials as high-efficiency photocatalyst for photocatalysis.
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