In situ growth of polyoxometalate in COF for trace monitoring of Ag⁺ and hepatocellular carcinoma biomarker via a dual responsive strategy

Abstract

Covalent organic frameworks (COFs) demonstrate a new trend in the field of chemical sensing mainly due to their potential for functional modification, defined pore environment and good chemical stability. Exploring...

Polyoxometalate-based frameworks for photocatalysis and photothermal catalysis

“…55,56 Yan and Peng et al incorporated POMs into the prepared cation COFs with electrostatic interactions. 57,58 To date, PCOFs still remain largely unexplored due to the difficult organic grafting of POMs and the low chemical tolerance of POM hybrids.…”

Combination of covalent organic frameworks (COFs) and polyoxometalates (POMs): the preparation strategy and potential application of COF–POM hybrids

“…Then the EB-TFP was added to the solution of Eu 4 W 8 to prepare Eu 4 W 8 @EB-TFP. 126 Peng and co-workers first mixed 2,5-dimethoxyterephthaldehyde (DMTP) and heteropoly blue (HPB) in acetonitrile, then added 1,3,5-tris(4-aminophenyl)benzene (TAPB), and finally allowed them to react to obtain HPB@COF. 127…”

Lanthanide Functionalized Covalent Organic Frameworks Hybrid Materials for Luminescence Responsive Chemical Sensing

“…To presence, some works have been engaged in lanthanide functionalized COFs hybrid materials for luminescence responsive chemical sensing. [93][94][95][96][97][98][99][100][101][102][103][104][105][106] In comparison with lanthanide functionalized metal-organic frameworks (MOFs) hybrid materials for luminescence responsive chemical sensing, lanthanide functionalized COFs hybrid materials have disadvantage to limit the development of their research. (1) PSM functionalization strategy.…”

“…Nowadays, the main successful PSM paths for lanthanide functionalized COFs hybrid materials involve coordination PSM (containing the covalent PSM COFs for further coordination PSM) for non-ionic COFs and anionic exchange PSM using anionic lanthanide compounds for cationic COFs. [93][94][95][96][97][98][99][100][101][102][103][104][105][106] (2) Luminescence property and responsive chemical sensing. Lanthanide functionalized MOFs hybrid materials are easily to achieve the effective luminescence of Ln 3 + and even multiple emission of Ln 3 + and MOFs' linker or other guest specie.…”

“…Wang et al incorporate polyoxometalate (POM, Eu 4 W 8 ) into COF (EB-TFP), generating hybrids Eu 4 W 8 @EB-TFP, which behaves as dual-functional sensing platform to detect both Ag + in environment and Cholyglycine (CG, hepatocellular carcinoma biomarker) in life system. [105] Eu 4 W 8 @EB-TFP introduces the Eu 3 + luminescence center of Eu 4 W 8 for the ionic exchange PSM of the EB-TFP host in spite of its not strong intensity (Figure 14a). As shown in Figure 14b, the plots show the good linearity (R 2 = 0.996) between the CG concentration (10 À 8 ~10 À 3 M) and Eu 4 W 8 @EB-TFP, with its LOD of 0.024 μg mL À 1 .…”