Synthesis of eight isostructural 2D lanthanide coordination polymers assembled by rigid furan-2,5-dicarboxylic acid and flexible adipic acid as linkers and exploration of luminescent Eu/Tb polymers as efficient and sensitive sensors for nitroaromatic compounds

Abstract

Eight isostructural coordination polymers were synthesized by a solvothermal method. The luminescent Eu/Tb polymers function as efficient sensors for nitroaromatics via turn-off mode.

PEI functionalized NaCeF4:Tb3+/Eu3+ for photoluminescence sensing of heavy metal ions and explosive aromatic nitro compounds

“…The gradual increased luminescence quenching with increase in the concentration of analytes was analyzed by using the Stern–Volmer (SV) equation. 66 I 0 / I = 1 + K SV [Q] K SV = k q τ f Here, I 0 is the luminescence intensity in the absence of analytes, and I is the luminescence intensity in the presence of metals ions, Q is the concentration of analytes and K SV is the Stern–Volmer (SV) quenching constant, k q is the bimolecular quenching rate constant and τ f is radiative life time. The affinity between PEI-functionalized nanophosphor (Eu-7%) and analytes (heavy metal ions and aromatic nitrocompounds) corresponding to K SV follows the order Fe 3+ > Cr 3+ > Co 2+ > Cd 2+ .…”

Dual-Ligand Strategy Employing Rigid 2,5-Thiophenedicarboxylate and 1,10-Phenanthroline as Coligands for Solvothermal Synthesis of Eight Lanthanide(III) Coordination Polymers: Structural Diversity, DFT Study, and Exploration of the Luminescent Tb(III) Coordination Polymer as an Efficient Chemical Sensor for Nitroaromatic Compounds

“… 32 − 41 These materials are being developed as fluorescent chemical sensors particularly for various industrial/agricultural wastes in aqueous media. 42 All over the globe, different research groups have made efforts to synthesize functional coordination polymers (CPs) to establish new structure–property relationships. 43 − 45 Apart from purely structural issues, lanthanide(III) coordination polymers are widely explored as potential magnetoluminescent materials due to their inimitable properties arising from partially filled 4f electronic orbitals.…”

“…Crystal engineering of lanthanide­(III)-organic hybrid materials has elicited considerable interest in the last two decades not only due to their diverse crystal structures and topologies − but also due to their potential as magnetoluminescent functional materials. − These materials are being developed as fluorescent chemical sensors particularly for various industrial/agricultural wastes in aqueous media . All over the globe, different research groups have made efforts to synthesize functional coordination polymers (CPs) to establish new structure–property relationships. − Apart from purely structural issues, lanthanide­(III) coordination polymers are widely explored as potential magnetoluminescent materials due to their inimitable properties arising from partially filled 4f electronic orbitals. − …”

Fructose to Sorbents: Synthesis of Metal–Organic Frameworks Directly from Biomass for Humid Shale Gas Separation

“…Ethane (C 2 H 6 ) is a key feedstock in petrochemical industries to manufacture ethylene through steam cracking or other thermal processes, which is normally obtained from low-temperature distillation of natural gas plant liquids (NGPL) associated with expensive and energy-intensive heat-driven procedures. − Adsorption-based separation, e.g., pressure-swing adsorption (PSA), is generally regarded as more flexible and energy-efficient compared to distillation. , MOFs have been utilized in PSA processes to separate ethane from other hydrocarbons, but it is still difficult to prepare MOFs with both high ethane capacity and selectivity under ambient conditions. − Moreover, the presence of water (vapor) in real gas reservoirs greatly deteriorates the regeneration property and stability of MOFs, becoming major industrial challenges for the recovery of low-concentration ethane from humid shale gas. − Fortunately, many FDCA-based MOFs exhibit good water resistance, − although very rarely MOFs have been researched for ethane capture and their cycling performance under humid conditions. , …”