Issue 7, 2023

Ligand functionalization on Zr-MOFs enables efficient visible-light-driven H2O2 evolution in pure water

Abstract

Different ligand functionalized UiO-66 (UiO-66-X, X = OH, (OH)2 and NH2) were prepared and then modified by ZnIn2S4 lamellas to form ZnIn2S4/UiO-66-X heterostructures for visible-light-driven H2O2 evolution in pure water. The H2O2 yields using ZnIn2S4/UiO-66-NH2, ZnIn2S4/UiO-66-(OH)2 and ZnIn2S4/UiO-66-OH are 799, 733 and 165 μmol L−1, respectively, which are 9.5, 8.7 and 2.0 times that of ZnIn2S4/UiO-66. The high performance of ZnIn2S4/UiO-66-NH2 and ZnIn2S4/UiO-66-(OH)2 is ascribed to the benign visible-light response and Z-scheme heterostructures, and the H2O2 evolution abides by indirect O2 reduction with ˙O2 as an intermediate species. Additionally, H2O2 yields using ZnIn2S4/UiO-66-NH2 on tap water and Xuanwu Lake (Nanjing, China) water can be comparable to that on the above-deionized water. This study sheds light on the great promise of functionalized MOFs and their applications on green (photo)catalytic energy conversion.

Graphical abstract: Ligand functionalization on Zr-MOFs enables efficient visible-light-driven H2O2 evolution in pure water

Supplementary files

Article information

Article type
Paper
Submitted
27 Jan 2023
Accepted
15 Feb 2023
First published
15 Feb 2023

Catal. Sci. Technol., 2023,13, 2101-2107

Ligand functionalization on Zr-MOFs enables efficient visible-light-driven H2O2 evolution in pure water

J. Qiu, L. Zhang, G. Xia, D. Dai, Y. Tang and J. Yao, Catal. Sci. Technol., 2023, 13, 2101 DOI: 10.1039/D3CY00130J

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