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A Porous Organic Polymer Nanotrap for Efficient Extraction of Palladium.
- Source :
- Angewandte Chemie; 10/26/2020, Vol. 132 Issue 44, p19786-19790, 5p
- Publication Year :
- 2020
-
Abstract
- To offset the environmental impact of platinum‐group element (PGE) mining, recycling techniques are being explored. Porous organic polymers (POPs) have shown significant promise owing to their selectivity and ability to withstand harsh conditions. A series of pyridine‐based POP nanotraps, POP‐Py, POP‐pNH2‐Py, and POP‐oNH2‐Py, have been designed and systematically explored for the capture of palladium, one of the most utilized PGEs. All of the POP nanotraps demonstrated record uptakes and rapid capture, with the amino group shown to be vital in improving performance. Further testing on the POP nanotrap regeneration and selectivity found that POP‐oNH2‐Py outperformed POP‐pNH2‐Py. Single‐crystal X‐ray analysis indicated that POP‐oNH2‐Py provided a stronger complex compared to POP‐pNH2‐Py owing to the intramolecular hydrogen bonding between the amino group and coordinated chlorine molecules. These results demonstrate how slight modifications to adsorbents can maximize their performance. [ABSTRACT FROM AUTHOR]
- Subjects :
- POROUS polymers
PLATINUM group
PALLADIUM
AMINO group
CHLORINE
HYDROGEN bonding
Subjects
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 132
- Issue :
- 44
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 146508260
- Full Text :
- https://doi.org/10.1002/ange.202006596