Rhenium-functionalized covalent organic framework photocatalyst for efficient CO2 reduction under visible light
Rhenium-functionalized covalent organic framework photocatalyst for efficient CO2 reduction under visible light
复制标题
铼功能化共价有机骨架光催化剂可在可见光下高效还原二氧化碳
DOI：
10.1016/j.micromeso.2019.05.026
复制
发表时间：
2019-09-01
影响因子：
5.2
通讯作者：
Zhu, Guangshan
中科院分区：
文献类型：
--
作者：
Li, Shu-Ying;Meng, Shuang;Zhu, Guangshan
近年来，光化学条件下二氧化碳(CO2)转化为增值化学品受到越来越多的关注。其中最大的挑战之一是开发新型的可见光照射下的活性催化剂，使其具有长寿命和高活性。在这方面，我们报道了一种高效、稳定和可回收的光催化剂，将光活性Re(CO)(5)Cl嵌入到多孔的、结晶的、基于联吡啶的共价有机骨架(COF)中。在可见光下，Re后金属化碳纤维对CO2还原为CO表现出显著的光催化活性。在相同的反应条件下，重新功能化的COFS的CO生成量是著名的Re(Bpy)(CO)(3)Cl(bpy=2，2‘-联吡啶)分子光催化剂的两倍。
The conversion of carbon dioxide (CO2) into value-added chemicals under photochemical conditions has attracted increasing attention in recent years. One of the great challenges is to develop novel active catalysts under visible light irradiation with sustained lifetime and high activity. In this regard, herein, we report a highly efficient, stable and recyclable photocatalyst by embedding photoactive rhenium complex (Re(CO)(5)Cl) into porous, crystalline, bipyridine-based covalent organic frameworks (COFs). The rhenium post-metallated COFs exhibits salient photocatalytic activity towards CO2 reduction into CO under visible light. The quantity of the CO produced on Re-functionalized COFs is twice higher than that produced on the famous Re(bpy)(CO)(3)Cl (bpy = 2,2'-bipyridine) molecular photocatalyst under similar reaction conditions.