Journal of Membrane Science, Год журнала: 2022, Номер 656, С. 120593 - 120593
Опубликована: Май 10, 2022
Язык: Английский
Environmental Science & Technology, Год журнала: 2022, Номер 56(18), С. 12811 - 12827
Опубликована: Сен. 1, 2022
Nanofiltration (NF) membranes have been widely applied in many important environmental applications, including water softening, surface/groundwater purification, wastewater treatment, and reuse. In recent years, a new class of piperazine (PIP)-based NF featuring crumpled polyamide layer has received considerable attention because their great potential for achieving dramatic improvements membrane separation performance. Since the report novel Turing structures that exhibited an order magnitude enhancement permeance ( Science 2018, 360 (6388), 518−521), number published research papers on this emerging topic grown exponentially to approximately 200. critical review, we provide systematic framework classify morphologies. The fundamental mechanisms fabrication methods involved formation these morphologies are summarized. We then discuss transport solutes how phenomena could simultaneously improve permeance, selectivity, antifouling applications highlighted, future opportunities/needs identified. insights review guidance further development high-performance tailored wide range applications.
Язык: Английский
Процитировано
206
Advanced Membranes, Год журнала: 2022, Номер 2, С. 100032 - 100032
Опубликована: Янв. 1, 2022
Mono-/multivalent ion-selective separation has become a common requirement at the water-energy nexus, including energy storage and conversion, water purification, sustainable industrial processes. In this review, we summarize theory of ion transport through membrane mechanisms selective in nanofiltration (NF) briefly. Recent advancing improving mono-/multivalent selectivity thin-film composite (TFC) NF via size sieving enhancement, electric charge property regulation co-enhancement properties are concluded. What's more, three material classes—surface assembly materials, nanomaterials biomimetic channels highlighted as candidates for preparation membranes. Lastly, design directions critical challenges developing high-selectivity membranes based on provided.
Язык: Английский
Процитировано
147
Nature Communications, Год журнала: 2022, Номер 13(1)
Опубликована: Дек. 27, 2022
Microporous organic nanotubes (MONs) hold considerable promise for designing molecular-sieving membranes because of their high microporosity, customizable chemical functionalities, and favorable polymer affinity. Herein, we report the use MONs derived from covalent frameworks to engineer 15-nm-thick microporous via interfacial polymerization (IP). The incorporation a highly porous interpenetrated MON layer on membrane before IP reaction leads formation polyamide with Turing structure, enhanced reduced thickness. MON-modified achieve remarkable water permeability 41.7 L m-2 h-1 bar-1 retention boron (78.0%) phosphorus (96.8%) at alkaline conditions (pH 10), surpassing those reported nanofiltration membranes. Molecular simulations reveal that introducing not only reduces amine molecule diffusion toward phase boundary but also increases porosity density molecules around pores. This MON-regulated strategy provides guidelines creating high-permeability precise nanofiltration.
Язык: Английский
Процитировано
124
Nature Communications, Год журнала: 2023, Номер 14(1)
Опубликована: Сен. 7, 2023
Abstract Current polyamide lithium extraction nanofiltration membranes are susceptible to chlorine degradation and/or low permeance, two problems that hard reconcile. Here we simultaneously circumvented these by designing a quaternized-spiro piperazine monomer and translating its beneficial properties into large-area (1 × 2 m ) via interfacial polymerization with trimesoyl chloride. The quaternary ammonium spiral conformation of the confer more positive charge free volume membrane, leading one highest permeance (~22 L −2 h −1 bar compared state-of-the-art Mg 2+ /Li + membranes. Meanwhile, membrane structures resistant as amine–acyl bonding contains no sensitive N-H group. Thus high performance is stable versus 400-h immersion in sodium hypochlorite, while control degraded readily. Molecular simulations show resistance, which were reproducible at module level, arise from secondary amine monomer.
Язык: Английский
Процитировано
112
Chemical Reviews, Год журнала: 2023, Номер 123(6), С. 2737 - 2831
Опубликована: Март 10, 2023
Confined fluids and electrolyte solutions in nanopores exhibit rich surprising physics chemistry that impact the mass transport energy efficiency many important natural systems industrial applications. Existing theories often fail to predict exotic effects observed narrowest of such pores, called single-digit (SDNs), which have diameters or conduit widths less than 10 nm, only recently become accessible for experimental measurements. What SDNs reveal has been surprising, including a rapidly increasing number examples as extraordinarily fast water transport, distorted fluid-phase boundaries, strong ion-correlation quantum effects, dielectric anomalies are not larger pores. Exploiting these presents myriad opportunities both basic applied research stand host new technologies at water-energy nexus, from membranes precise separations purification gas permeable materials electrolyzers energy-storage devices. also present unique achieve ultrasensitive selective chemical sensing single-ion single-molecule limit. In this review article, we summarize progress on nanofluidics SDNs, with focus confinement arise extremely narrow nanopores. The recent development precision model systems, transformative tools, multiscale played enabling roles advancing frontier reviewed. We identify knowledge gaps our understanding nanofluidic provide an outlook future challenges frontier.
Язык: Английский
Процитировано
105
Journal of Membrane Science, Год журнала: 2022, Номер 647, С. 120221 - 120221
Опубликована: Янв. 12, 2022
Reverse osmosis (RO) and electrodialysis (ED) are the two most important membrane technologies for water desalination treatment. Their modes of operation transport mechanisms very different, but on a closer look also have many similarities. In this concise version our tutorial review, we describe state-of-the-art theory both processes, focusing simple examples that helpful non-specialist useful classroom teaching. Both processes described by solution (SF) which combines ion across membranes with chemical mechanical equilibrium at membrane/solution interfaces. We present derivation SF based force balances ions show how various terms, convection, diffusion, electromigration, derived, solute partitioning is implemented. Finally, demonstrate accurately describes experiment where transported in opposite directions membrane.
Язык: Английский
Процитировано
96
Nature Water, Год журнала: 2023, Номер 1(3), С. 281 - 290
Опубликована: Фев. 27, 2023
Язык: Английский
Процитировано
92
Advanced Functional Materials, Год журнала: 2022, Номер 33(9)
Опубликована: Дек. 25, 2022
Abstract Nanofiltration membrane plays an increasingly important role in many industrial applications, such as water treatment and resource recovery. The performance of the smart nanofiltration is largely controlled by pore size, Donnan effect, surface wettability, which are determined function stimuli‐responsive components. Smart membranes, contain components, capable changing their physical chemical properties response to changes environment so that microstructure will have more efficient performances broader application prospects than current traditional membranes. Herein, preparation methods membranes described they systematically classified accordingly mechanisms. Moreover, latest progress main mechanism each stimuli‐response type through relevant examples discussed summarized. Finally, this review provides new insights into remaining challenges future directions Fueled advances chemistry materials science, it expected build a platform for benefit mankind.
Язык: Английский
Процитировано
87
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Март 20, 2024
Achieving high selectivity of Li
Язык: Английский
Процитировано
82
Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(48)
Опубликована: Окт. 5, 2023
Abstract Efficient Mg 2+ /Li + separation is crucial to combating the lithium shortage worldwide, yet current nanofiltration membranes suffer from low efficacy and/or poor scalability, because desirable properties of are entangled and there a trade‐off. This work reports “tagged‐modification” approach tackle challenge. A mixture 3‐bromo‐trimethylpropan‐1‐aminium bromide (E 1 ) 3‐aminopropyltrimethylazanium 2 was designed modify polyethylenimine – trimesoyl chloride (PEI‐TMC) membranes. E reacted with PEI TMC, respectively, thus, membrane (hydrophilicity, pore sizes, charge) were untangled intensified simultaneously. The permeance (34.3 L m −2 h −1 bar selectivity (23.2) modified about 4 times higher than pristine membrane, they remain stable in 30‐days test. highest among all analogous tagged‐modification method enables preparation large‐area modules that produce high‐purity carbonate (Li CO 3 simulated brine.
Язык: Английский
Процитировано
61