Rapid synthesis of cerium-UiO-66 MOF nanoparticles for photocatalytic dye degradation

Abstract

An unprecedented synthesis method is used to form a series of Ce-UiO-66-X (X=NH2, OH, H, NO2, COOH) metal-organic frameworks by precipitation from mixed solvents, with instantaneous crystallisation on combining separate...

A facile synthesis of a Ce-based MOF at room temperature for effective adsorption of methylene blue

“…24–26 To develop synthetic methods without the involvement of toxic solvents and on a larger scale for Ce-UiO-66 MOF has certain research values. Ce-UiO-66 materials have a wide range of applications, such as photocatalysis, 24,27,28 sensing, 29,30 adsorption 26,31 and so on. Although pristine Ce-UiO-66 has been synthesized with a certain adsorption ability for MB, the adsorption efficiency and capacity still need to be improved.…”

Construction of a series of pH stable Ca-based MOFs, their CO2 adsorption and catalytic activity

“…High boiling point and polar solvents, such as dimethylformamide (DMF), dimethyl sulfoxide (DMSO), diethyl formamide (DEF) and dimethylacetamide (DMA), are frequently used for the synthesis of MOFs, either alone or in combination with other solvents. 17 The solvent can affect MOF synthesis by its ability to influence solubility, deprotonation of organic linkers and the coordination behaviour of the metal ions that lead to the determination of connectivity and dimensionality of the resultant framework. 18 Lewis acidity of catalysts promotes different types of organic reactions by withdrawing the electron density from the functional groups to make them susceptible to nucleophilic attack.…”

The Use of Rapid Precipitation to Synthesise Multivariate UiO-66 Metal–Organic Frameworks for Photocatalysis

“…In this work, we investigate the use of precipitation to rapidly form a new series of MTV-MOF materials with the UiO-66 structure to be studied for the photocatalytic degradation of dyes, following from our recent work that studied the formation of Ce-UiO-66 materials [22]. Herein, Ce/Zr-UiO-66(1,4-NDC/BDC), Ce/Zr-UiO-66(1,4-NDC/2,6-NDC), Ce/Zr-UiO-66(1,4-NDC), Ce/Ti-UiO-66(1,4-NDC), and Ce/Ti-UiO-66(BDC-NH 2 ) are formed with a high yield by mixing suitable precursor solutions.…”

“…In this work, we investigate the use of precipitation to rapidly form a new series of MTV-MOF materials with the UiO-66 structure to be studied for the photocatalytic degradation of dyes, following from our recent work that studied the formation of Ce-UiO-66 materials [22]. Herein, Ce/Zr-UiO-66(1,4-NDC/BDC), Ce/Zr-UiO-66 (…”

“…There are some limitations in the synthesis of MOFs that contain linkers with reactive functional groups, such as the amino group that can be oxidized by Ce(IV) during the formation of the MOF[19]. Regarding the reduction in Ce(IV) during MOF formation, one strategy to minimize this possibility is to use rapid synthesis methods such as microwave heating or short reflux (15-20 min) to provide an opportunity to include as much Ce(IV) as possible before the reduction occurs[20,21].In this work, we investigate the use of precipitation to rapidly form a new series of MTV-MOF materials with the UiO-66 structure to be studied for the photocatalytic degradation of dyes, following from our recent work that studied the formation of Ce-UiO-66 materials[22]. Herein, Ce/Zr-UiO-66(1,4-NDC/BDC), Ce/Zr-UiO-66(1,4-NDC/2,6-NDC), Ce/Zr-UiO-66(1,4-NDC), Ce/Ti-UiO-66(1,4-NDC), and Ce/Ti-UiO-66(BDC-NH2) are formed with a high yield by mixing suitable precursor solutions.…”