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- Publisher Website: 10.1002/adma.201808027
- Scopus: eid_2-s2.0-85065133068
- PMID: 30883943
- WOS: WOS:000469242400008
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Article: Functionalized Porous Aromatic Frameworks as High-Performance Adsorbents for the Rapid Removal of Boric Acid from Water
Title | Functionalized Porous Aromatic Frameworks as High-Performance Adsorbents for the Rapid Removal of Boric Acid from Water |
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Authors | |
Keywords | adsorption water purification boron-selective adsorbents porous aromatic frameworks |
Issue Date | 2019 |
Citation | Advanced Materials, 2019, v. 31, n. 18, article no. 1808027 How to Cite? |
Abstract | © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This study demonstrates that functionalized, highly porous polymers are promising for the adsorptive capture of boric acid, a neutral contaminant that is difficult to remove from seawater using conventional reverse osmosis membranes. Appending N-methyl-d-glucamine (NMDG) to the pore walls of high-surface-area porous aromatic frameworks (PAFs) yields the adsorbents PAF-1-NMDG and P2-NMDG in a simple two-step synthesis. The boron-selective PAFs demonstrate adsorption capacities that are up to 70% higher than those of a commercial boron-selective resin, Amberlite IRA743, and markedly faster adsorption rates, owing to their higher NMDG loadings and greater porosities relative to the resin. Remarkably, PAF-1-NMDG is able to reduce the boron concentration in synthetic seawater from 2.91 to <0.5 ppm in less than 3 min at an adsorbent loading of only 0.3 mg mL −1 . The boron adsorption rate constants of both frameworks, determined via a pseudo-second-order rate model, represent the highest values reported in the literature—in most cases orders of magnitude higher than those of other boron-selective adsorbents. The frameworks can also be readily regenerated via mild acid/base treatment and maintain constant boron adsorption capacities for at least 10 regeneration cycles. These results highlight the numerous advantages of PAFs over traditional porous polymers in water treatment applications. |
Persistent Identifier | http://hdl.handle.net/10722/273748 |
ISSN | 2023 Impact Factor: 27.4 2023 SCImago Journal Rankings: 9.191 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Kamcev, Jovan | - |
dc.contributor.author | Taylor, Mercedes K. | - |
dc.contributor.author | Shin, Dong Myeong | - |
dc.contributor.author | Jarenwattananon, Nanette N. | - |
dc.contributor.author | Colwell, Kristen A. | - |
dc.contributor.author | Long, Jeffrey R. | - |
dc.date.accessioned | 2019-08-12T09:56:33Z | - |
dc.date.available | 2019-08-12T09:56:33Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Advanced Materials, 2019, v. 31, n. 18, article no. 1808027 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | http://hdl.handle.net/10722/273748 | - |
dc.description.abstract | © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim This study demonstrates that functionalized, highly porous polymers are promising for the adsorptive capture of boric acid, a neutral contaminant that is difficult to remove from seawater using conventional reverse osmosis membranes. Appending N-methyl-d-glucamine (NMDG) to the pore walls of high-surface-area porous aromatic frameworks (PAFs) yields the adsorbents PAF-1-NMDG and P2-NMDG in a simple two-step synthesis. The boron-selective PAFs demonstrate adsorption capacities that are up to 70% higher than those of a commercial boron-selective resin, Amberlite IRA743, and markedly faster adsorption rates, owing to their higher NMDG loadings and greater porosities relative to the resin. Remarkably, PAF-1-NMDG is able to reduce the boron concentration in synthetic seawater from 2.91 to <0.5 ppm in less than 3 min at an adsorbent loading of only 0.3 mg mL −1 . The boron adsorption rate constants of both frameworks, determined via a pseudo-second-order rate model, represent the highest values reported in the literature—in most cases orders of magnitude higher than those of other boron-selective adsorbents. The frameworks can also be readily regenerated via mild acid/base treatment and maintain constant boron adsorption capacities for at least 10 regeneration cycles. These results highlight the numerous advantages of PAFs over traditional porous polymers in water treatment applications. | - |
dc.language | eng | - |
dc.relation.ispartof | Advanced Materials | - |
dc.subject | adsorption | - |
dc.subject | water purification | - |
dc.subject | boron-selective adsorbents | - |
dc.subject | porous aromatic frameworks | - |
dc.title | Functionalized Porous Aromatic Frameworks as High-Performance Adsorbents for the Rapid Removal of Boric Acid from Water | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/adma.201808027 | - |
dc.identifier.pmid | 30883943 | - |
dc.identifier.scopus | eid_2-s2.0-85065133068 | - |
dc.identifier.volume | 31 | - |
dc.identifier.issue | 18 | - |
dc.identifier.spage | article no. 1808027 | - |
dc.identifier.epage | article no. 1808027 | - |
dc.identifier.eissn | 1521-4095 | - |
dc.identifier.isi | WOS:000469242400008 | - |
dc.identifier.issnl | 0935-9648 | - |