Incorporation of Polyoxometalate in Sulfonic Acid‐modified MIL‐101‐Cr for Enhanced CO<sub>2</sub> Photoreduction Activity
Yue Wang, Yue Xie, Mingchuan Deng, Tian‐Fu Liu, Hongxun Yang
Abstract
Abstract Silicomolybdic acid is supported on the sulfonic acid‐modified MIL‐101‐Cr by diffusion method, which increases the metal active sites on the surface of the material while maintains the structural integrity of MIL‐101. The CO yield of composite SiMo 12 O 40 @SO 3 H‐MIL‐101‐Cr in CO 2 photoreduction is as high as 82.95 μmol/(g ⋅ h), and the CO selectivity is 93.2 %. The improvement in the catalytic performance of the composite can be attributed to the synergistic effect of the sulfonic acid group and the silicomolybdic acid molecule, which could effectively promote the separation of photogenerated carriers and inhibit the recombination of photogenerated electrons and hole pairs.