Academic Journal
Dimensional reduction of hydrogen-bonding networks induced by hierarchical confinement to promote ultra-fast adsorption of hydrated ions to targeted sites.
| Τίτλος: | Dimensional reduction of hydrogen-bonding networks induced by hierarchical confinement to promote ultra-fast adsorption of hydrated ions to targeted sites. |
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| Συγγραφείς: | Du M; National Engineering Research Center for Safe Disposal and Resources Recovery of Sludge, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China., Sun Z; State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China. Electronic address: sunhit@hit.edu.cn., Wang A; State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China., Li A; National Engineering Research Center for Safe Disposal and Resources Recovery of Sludge, Harbin Institute of Technology, Harbin, 150090, PR China; State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China. Electronic address: li.ang@hit.edu.cn., Ma J; State Key Laboratory of Urban-rural Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China. |
| Πηγή: | Water research [Water Res] 2026 Oct 01; Vol. 304, pp. 126318. Date of Electronic Publication: 2026 Jun 16. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Pergamon Press Country of Publication: England NLM ID: 0105072 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2448 (Electronic) Linking ISSN: 00431354 NLM ISO Abbreviation: Water Res Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Oxford, Pergamon Press. |
| Ιατρικοί όροι (MeSH): | Hydrogen Bonding* , Ions*, Graphite/chemistry ; Water/chemistry ; Adsorption |
| Περίληψη: | Salt ions typically exist as hydrated states in aqueous environments, wherein the hydration shell impedes their contact with active sites, limiting adsorption efficiency. To address this, we innovatively design hierarchical confined structure to achieve complete removal of hydrated shell. This structure is constructed by intercalating one-dimensional (1D) nanochannel metal-organic framework (MOF) into two-dimensional (2D) graphene oxide (GO) interlayers. The resulting M-MOF@GO adsorbent exhibits exceptional performance, achieving capacities of 250.2 mg·g‒1 for hydrated phosphate and 281.6 mg·g‒1 for hydrated fluoride, respectively, plus ultra-high mass transfer rates of 13.09 and 11.97 mg·(g·min0.5)-1. Such exceptional performance stems from confinement-induced dimensionality reduction mechanism of the hydrogen-bond network. Under GO-based 2D interlayers, abundant hydrophilic groups synergize with the confined environment forms a superhydrophilic microenvironment, inducing siphon effect that attracts hydrated ions into the confined spaces while simultaneous promoting dehydration. Released water form an ordered 2D network at the inner interface, reducing diffusion resistance to accelerate ion mobility. Partially dehydrated ions then transport into the 1D M-MOF channels, where enhance confinement enable near-complete desolvation. This facilitates unhindered ions coordination with increased coordination number and binding strength on active sites. Such mechanism guarantees high performance across multiple application scenarios, offering a groundbreaking solution to hydration-limited adsorption. (Copyright © 2026 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Dimensional reduction; Hierarchical confinement; Hydrated ions; Hydrogen-bonding networks; Ultra-fast adsorption |
| Substance Nomenclature: | 7782-42-5 (Graphite) 0 (Ions) 059QF0KO0R (Water) |
| Entry Date(s): | Date Created: 20260623 Date Completed: 20260815 Latest Revision: 20260817 |
| Update Code: | 20260818 |
| DOI: | 10.1016/j.watres.2026.126318 |
| PMID: | 42335535 |
| Βάση Δεδομένων: | MEDLINE |
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