MOF-253-Supported Ru Complex for Photocatalytic CO2 Reduction by Coupling with Semidehydrogenation of 1,2,3,4-Tetrahydroisoquinoline (THIQ)

Xiaoyu Deng; Yuhuan Qin; Mingming Hao; Zhaohui Li

doi:10.1021/acs.inorgchem.9b02593

MOF-253-Supported Ru Complex for Photocatalytic CO₂ Reduction by Coupling with Semidehydrogenation of 1,2,3,4-Tetrahydroisoquinoline (THIQ)

Inorg Chem. 2019 Dec 16;58(24):16574-16580. doi: 10.1021/acs.inorgchem.9b02593. Epub 2019 Nov 27.

Authors

Xiaoyu Deng¹, Yuhuan Qin¹, Mingming Hao¹, Zhaohui Li¹

Affiliation

¹ Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry , Fuzhou University , Fuzhou 350116 , People's Republic of China.

PMID: 31774657
DOI: 10.1021/acs.inorgchem.9b02593

Abstract

MOF-253 (Al(OH)(dcbpy), dcbpy = 2,2'-bipyridine-5,5'-dicarboxylic acid) obtained via a microwave-assisted synthesis was used for the construction of a supported Ru complex containing dcbpy (MOF-253-Ru(dcbpy)₂) by coordinating its open N,N'-chelating sites with Ru(II) in Ru(dcbpy)₂Cl₂. The as-obtained MOF-253-Ru(dcbpy)₂ acts as a bifunctional photocatalyst for simultaneous CO₂ reduction to produce formic acid and CO, as well as semidehydrogenation of 1,2,3,4-tetrahydroisoquinoline (THIQ) to obtain 3,4-dihydroisoquinoline (DHIQ). The performance over the surface-supported MOF-253-Ru(dcbpy)₂ is superior to that over Ru-doped MOF-253 (Ru-MOF-253) obtained via a mix-and-match strategy, indicating that the use of open coordination sites in the MOFs for direct construction of a surface-supported complex is a superior strategy to obtain an MOF-supported homogeneous complex. This study shows the possibility of using an MOF as a platform for the construction of multifunctional heterogeneous photocatalytic systems. The coupling of photocatalytic CO₂ reduction with the highly selective dehydrogenation of organics provides an economical and green strategy in photocatalytic CO₂ reduction and production of valuable organics simultaneously.