**Recent Advances in MOF-based Nanocatalysts for Photo-Promoted CO2 Reduction Applications**

**Chang Liu 1, Wenzhi Wang 2, Bin Liu 2, Jing Qiao 1, Longfei Lv 1, Xueping Gao 1,\*, Xue Zhang 1, Dongmei Xu 3, Wei Liu 3, Jiurong Liu 1,\*, Yanyan Jiang 1, Zhou Wang 1, Lili Wu 1 and Fenglong Wang 1,\***


Received: 3 July 2019; Accepted: 30 July 2019; Published: 31 July 2019

**Abstract:** The conversion of CO2 to valuable substances (methane, methanol, formic acid, etc.) by photocatalytic reduction has important significance for both the sustainable energy supply and clean environment technologies. This review systematically summarized recent progress in this field and pointed out the current challenges of photocatalytic CO2 reduction while using metal-organic frameworks (MOFs)-based materials. Firstly, we described the unique advantages of MOFs based materials for photocatalytic reduction of CO2 and its capacity to solve the existing problems. Subsequently, the latest research progress in photocatalytic CO2 reduction has been documented in detail. The catalytic reaction process, conversion efficiency, as well as the product selectivity of photocatalytic CO2 reduction while using MOFs based materials are thoroughly discussed. Specifically, in this review paper, we provide the catalytic mechanism of CO2 reduction with the aid of electronic structure investigations. Finally, the future development trend and prospect of photocatalytic CO2 reduction are anticipated.

**Keywords:** Metal-organic frameworks (MOFs); photocatalysis; carbon dioxide reduction; renewable energy
