A Recyclable Metal-Organic Framework as a Dual Detector and Adsorbent for Ammonia



Gladysiak, Andrzej, Nguyen, Tu N, Navarro, Jorge AR, Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483 and Stylianou, Kyriakos C
(2017) A Recyclable Metal-Organic Framework as a Dual Detector and Adsorbent for Ammonia. CHEMISTRY-A EUROPEAN JOURNAL, 23 (55). pp. 13602-13606.

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Abstract

Recyclable materials for simultaneous detection and uptake of ammonia (NH<sub>3</sub> ) are of great interest due to the hazardous nature of NH<sub>3</sub> . The structural versatility and porous nature of metal-organic frameworks (MOFs) make them ideal candidates for NH<sub>3</sub> capture. Herein, the synthesis of a water-stable and porous 3-dimensional Cu<sup>II</sup> -based MOF (SION-10) displaying a ship-in-a-bottle structure is reported; the pores of the host SION-10 framework accommodate mononuclear Cu<sup>II</sup> -complexes. SION-10 spontaneously uptakes NH<sub>3</sub> as a result of two concurrent mechanisms: chemisorption due to the presence of active Cu<sup>II</sup> sites and physisorption (bulk permanent porosity). The color of the material changes from green to blue upon NH<sub>3</sub> capture, with the shifts of the UV/Vis absorption bands clearly seen at NH<sub>3</sub> concentrations as low as 300 ppm. SION-10 can be recovered upon immersion of SION-10⊃NH<sub>3</sub> in water and can be further reused for NH<sub>3</sub> capture for at least three cycles.

Item Type: Article
Uncontrolled Keywords: ammonia capture, ammonia detection, metal-organic framework, recyclability, ship-in-a-bottle
Depositing User: Symplectic Admin
Date Deposited: 24 Nov 2017 08:23
Last Modified: 19 Jan 2023 06:50
DOI: 10.1002/chem.201703510
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3012758