Structure determines performance: isomeric Ti-MOFs for photocatalytic synthesis of hydrogen peroxide

Chem Commun (Camb). 2024 Feb 13;60(14):1920-1923. doi: 10.1039/d3cc05845j.

Abstract

NH2-UiO-66(Ti) and NH2-MIL-125(Ti) were successfully prepared by using post-synthesis exchange (PSE) and hydrothermal methods, and then these frameworks were tested for photocatalytic hydrogen peroxide production in pure water under visible light. NH2-MIL-125(Ti) exhibits superior activity compared to NH2-UiO-66(Ti) due to its shorter Ti-O bond. In addition, NH2-MIL-125-D (defective) demonstrates a high photocatalytic yield of hydrogen peroxide owing to the presence of defect-rich titanium rich sites.