Fabrication of a novel heteroepitaxial structure from an MOF-on-MOF architecture as a photocatalyst for highly efficient Cr(vi) reduction

Abstract

Ce-on-Zr-MOF-808, a novel MOF-on-MOF hybrid used for efficient chromium reduction under visible-light irradiation.

Recent Progress in the Development of MOF-Based Photocatalysts for the Photoreduction of Cr(VI)

“…A heterometallic MOF was synthesized by the epitaxial growth of Ce-MOF-808 on the surface of Zr-MOF-808 (Figure ). The energy bandgaps of 2.95, 3.9, and 2.5 eV were found for Ce-MOF-808, Zr-MOF-808, and Ce-on-Zr-MOF-808, respectively. The photoactivity of the resulting Ce-on-Zr-MOF-808 was studied for the photoreduction of Cr (VI) .…”

“…Schematic pathway for the synthesis of Ce-on-Zr-MOF-808. Reprinted with permission from ref . Copyright 2022 Royal Society of Chemistry.…”

Modular Construction of an MIL-101(Fe)@MIL-100(Fe) Dual-Compartment Nanoreactor and Its Boosted Photocatalytic Activity toward Tetracycline

“…21 Gu et al synthesized MIL-101@NH 2 -MIL-125 to achieve 72% degradation of Cr(VI), which is 53% higher than the single-component photocatalysis efficiency. 22 Negin et al prepared Ce-on-Zr-MOF-808, which achieved 100% reduction of Cr(VI) in 45 min 23 Yu et al synthesized NH 2 -MIL-125@NTU-9 to converge CO 2 to formate production. The quantum efficiency (0.67%) and selectivity (94.47%) of formate production at 430 nm by NH 2 -MIL-125@NTU-9 obviously exceeded those of NH 2 -MIL-125 (0.13 and 88.56%) and NTU-9 (0.16 and 89.26%).…”

Facile synthesis of MOF-808/AgI Z-scheme heterojunction with improved photocatalytic performance for the degradation of tetracycline hydrochloride under simulated sunlight

“…[7][8][9] Metal-organic frameworks (MOFs) are new cellular substances constituted by organic ligands and inorganic metal ions having large specific surface area, high porosity, as well as tunable pore formation, which have been frequently used in the adsorption of pollutants, catalytic hydrogen production, and sensors. [10][11][12][13][14] In addition, a part of MOFs also have semiconductor properties and have good prospects for application in photocatalytic materials. 15 MOF-808, as a hexa-nuclear zirconium-based MOF, is of great interest due to its high specific surface area, large porosity, satisfactory stability, and abundant metal sites.…”