An Ester-Functionalized Bidentate Titanium-based Metal-Organic Framework with Visible-Light Enhanced Activity for CO2 Photoreduction.
ChemSusChem
; : e202400936, 2024 Jun 14.
Article
en En
| MEDLINE
| ID: mdl-38873971
ABSTRACT
The limited visible light response is a critical drawback that hampers the photocatalytic efficacy of Ti-MOFs. However, study concerning the enhancement of the visible-light response of Ti-MOFs is still in its nascent stage. In this study, we employ the 'dual-ligand decrystallization strategy' to manipulate the electronic environment of Ti4+, leading to the synthesis of three ester-functionalized bidentate Ti-MOFs with enhanced visible light response. Our findings reveal that this approach not only reduces the bandgap of Ti-MOFs but also enhances their photocatalytic activity for carbon dioxide reduction. Specifically, compared to the bandgap of Ti-BPDC at 2.98â
eV, the bandgap of Ti-BPDC-CA 1 2 has been reduced to 2.14â
eV. Moreover, Ti-BPDC-CA 1 2 exhibits extraordinary photocatalytic activity with the formic acid (HCOOH) production rate of 617â
µmol g-1 h-1 with over 99.5 % selectivity, which is 3.47â
times higher than that of Ti-BPDC. Besides providing a cost-effective strategy for enhancing the visible light response of Ti-MOFs, our study also serves as an illustrative example for establishing the correlation between electronic structure and optical properties.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
ChemSusChem
Asunto de la revista:
QUIMICA
/
TOXICOLOGIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
China