Photocatalytic Reduction of CO2 to CO over Quinacridone/BiVO4 Nanocomposites.

Photocatalytic Reduction of CO2 to CO over Quinacridone/BiVO4 Nanocomposites. ChemSusChem. 2020 Aug 23;: Authors: Liu Z, Yu X, Wen F, Zhang F, Yang P, Zhao Y, Wu Y, Wang Y Abstract Solar energy driven photoreduction of CO2 to energy-rich chemicals is of significance for sustainable development, but challenging. H erein, we report quinacridone (QA)/n BiVO4 ( n=0.2~20, where n stands for the mass ratio of BiVO4 to QA) nanocomposites for photoreduction of CO2 . Characterization of the materials with Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS) points to the QA/nBiVO4 prepared via hydrogen-bonding directed self-assembly of QA on BiVO4 nanosheets. Using triethanolamine (TEOA) as a sacrifice reagent, QA/10BiVO4 shows the best performance, affording CO with a production rate of 407 μmol g-1 h -1 , 24 times higher than those of pure QA. It is indicated that the Z-scheme charge transfer mechanism of QA/nBiVO4 can significently improve the seperation and transmission efficiency of photo-generated electrons and holes. This novel approach provids new insight for fabricating the composite photocatalytic materials of small molecule organic semiconductor and inorganic semiconductor with high efficiency for photocatalytic of CO2 . PMID: 32830424 [PubMed - as supplied by publisher]
Source: ChemSusChem - Category: Chemistry Authors: Tags: ChemSusChem Source Type: research