A Mixed‐Metal Porphyrinic Framework Promoting Gas‐Phase CO<sub>2</sub> Photoreduction without Organic Sacrificial Agents
Wen‐Yang Gao, Huong T. Ngo, Zheng Niu, Weijie Zhang, Yanxiong Pan, Zhongyu Yang, Venkat R. Bhethanabotla, Babu Joseph, Briana Aguila, Shengqian Ma
Abstract
Abstract A photoactive porphyrinic metal−organic framework (MOF) has been prepared by exchanging Ti into a Zr‐based MOF precursor. The resultant mixed‐metal Ti/Zr porphyrinic MOF demonstrates much‐improved efficiency for gas‐phase CO 2 photoreduction into CH 4 and CO under visible‐light irradiation using water vapor compared to the parent Zr‐MOF. Insightful studies have been conducted to probe the photocatalysis processes. This work provides the first example of gas‐phase CO 2 photoreduction into methane without organic sacrificial agents on a MOF platform, thereby paving an avenue for developing MOF‐based photocatalysts for application in CO 2 photoreduction and other types of photoreactions.