Detection of SO₂ using a chemically stable Ni(ii)-MOF

Abstract

The MOF-type Ni2(dobpdc) shows a high chemical stability towards SO2, high capacity for SO2 capture at low pressure (4.3 mmol g-1 at 298 K and up to 0.05 bar), and...

Al(iii)-based MOF for the selective adsorption of phosphate and arsenate from aqueous solutions

“…17 These salient characteristics have resulted in their applications in several fields, such as drug delivery, 18 adsorption, 19 catalysis, 20 and detection. 21 Also, MOFs have been tested for organic and inorganic pollutant adsorption in water remediation. 22–24 Mainly, arsenic and phosphate adsorption has been under study.…”

SO2 Capture and Detection by SBA-15 and Amine-Functionalized SBA-15

“…12 Therefore, new-generation porous solid-state materials (e.g., MOPs 13 and POCs 14 ) have been recently investigated to capture SO 2 . Also, metal−organic frameworks (MOFs) have demonstrated promising SO 2 capture results (e.g., MIL-101(Cr)-4F(1%) 15 and Ni 2 (dobpdc) 16 ), showing high SO 2 capture capacities, with high chemical stability and facile regeneration. 17 However, one of the main disapprovals for the utilization of MOFs in relevant fields, such as capture or large amounts of contaminants, is the current high cost of manufacture for the organic ligands.…”

Impact of Ni(ii) coordinatively unsaturated sites and coordinated water molecules on SO2 adsorption by a MOF with octanuclear metal clusters

“…Moreover, from a chemical point of view, Ni-based compounds are known to exhibit interesting properties such as electrocatalytic capabilities, 23 magnetic properties, 24 energy storage, 25 and detection. 26 Although some M 2+ -based MOFs are considered unstable to SO 2 adsorption, the combination of polyazolate ligands and divalent metals increases the MOF structural stability over alkaline or acidic environments. 27 MOFs formed by strong Ni 2+ –N(azolate) bonds provide greater chemical and thermal stability compared to their carboxylate analogues.…”