Sulfonic acid functionalized zirconium-based metal–organic framework for the selective detection of copper(ii) ions

Abstract

A zirconium-MOF with sulphonic acid functionalized biphenyldicarboxylic acid linker was synthesized by a solvothermal process. The material was characterized by powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), Brunauer Emmett-Teller (BET),...

An eco-friendly approach using a nonfluorous self-cleaning metal–organic framework composite and membrane for oil–water separation

“…The peak of the –COO − group after the synthesis of the MOF was shifted to 1565 and 1370 cm −1 , which confirmed the coordination between the carboxylate group of the linker and Zr( iv ) metal center. 9 The carbonyl group of adsorbed DMF in SH-UiO-66 was at 1656 cm −1 , 10 which vanished after the activation.…”

A self-cleaning hydrophobic MOF-based composite for highly efficient and recyclable separation of oil from water and emulsions

“…[16][17][18] The wide range of functionality in the family of MOFs makes them unique in the field of sensing and catalysis. [19][20][21][22][23] The other absorbent materials like core-shell magnetic materials developed by Yu et al have very low surface areas, whereas the MOF materials have very large surface areas, which is advantageous for absorption-related applications. 24,25 Therefore, we synthesized a Zr(IV) based MOF material (1 0 @CF 3 ) with a -OCOCF 3 group by the post-synthetic modification of Zr-BDC-OH MOF (1 0 ) with trifluoroacetic anhydride.…”

A MOF chemosensor for highly sensitive and ultrafast detection of folic acid in biofriendly medium, paper strips and real samples

“…The turn-off mechanism may be possible with different pathways, e.g. formation of the non-fluorescent ground state, 51 collision between the probe and the analyte, fluorescence resonance energy transfer (FRET), 33 photoinduced electron transfer (PET) 31 or an inner filter effect (IFE). 52 These phenomena can be categorised into two groups: static and dynamic quenching.…”

“…On the other hand, MOF-based probes have become very prevalent for the selective detection of numerous analytes. [31][32][33][34][35][36][37][38] Their three-dimensional (3D) frameworks, 39 made of metal ions and organic linkers, 57 enable wide surface area, high thermal stability and scope of functionalisation of the pore surface. 33,[40][41][42][43][44] The functionalised organic linker is strongly bound in this framework, decreasing the scope of aggregation.…”

“…[31][32][33][34][35][36][37][38] Their three-dimensional (3D) frameworks, 39 made of metal ions and organic linkers, 57 enable wide surface area, high thermal stability and scope of functionalisation of the pore surface. 33,[40][41][42][43][44] The functionalised organic linker is strongly bound in this framework, decreasing the scope of aggregation. The three-dimensional framework and higher surface area enhance the interaction between the analyte and the probe, 45 which reduces the response time.…”