Construction of Thiazolo[5,4-<i>d</i>]thiazole-based Two-Dimensional Network for Efficient Photocatalytic CO<sub>2</sub> Reduction
Yuancheng Wang, Hui Liu, Qingyan Pan, Naixiu Ding, Chunming Yang, Zhaohui Zhang, Changchao Jia, Zhibo Li, Jian Liu, Yingjie Zhao
Abstract
The efficient conversion of CO2 to chemical fuels driven by solar energy is still a challenging research area in photosynthesis, in which the conversion efficiency greatly relies on photocatalytic coenzyme NADH regeneration. Herein, a photocatalyst/biocatalyst synergetic system based on a conjugated microporous polymer (CMP) was prepared for sustainable and highly selective photocatalytic reduction of CO2 to methanol. Two thiazolo[5,4-d]thiazole-linked CMPs (TZTZ-TA and TZTZ-TP) were designed and synthesized as photocatalysts. Slight skeleton modification led to a great difference in their photocatalytic performance. Triazine-based TZTZ-TA exhibited an unprecedentedly high NADH regeneration efficiency of 82.0% yield within 5 min. Furthermore, the in situ photocatalytic NADH regeneration system could integrate with three consecutive enzymes for efficient conversion of CO2 into methanol. This CMP–enzyme hybrid system provides a new avenue for accomplishing the liquid sunshine from CO2.