GO-Based Membranes for Desalination

Membranes, Journal Year: 2023, Volume and Issue: 13(2), P. 220 - 220

Published: Feb. 10, 2023

Graphene oxide (GO), owing to its atomic thickness and tunable physicochemical properties, exhibits fascinating properties in membrane separation fields, especially water treatment applications (due unimpeded permeation of through graphene-based membranes). Particularly, GO-based membranes used for desalination via pervaporation or nanofiltration have been widely investigated with respect design preparation. However, the precise construction transport pathways, facile fabrication large-area (GOMs), robust stability are main challenges restricting industrial application GOMs. This review summarizes recent research development GOMs preparation methods, regulation GOM mass transfer performance, mechanisms. The aims provide an overview methods horizontal longitudinal channels GOMs, including GO reduction, interlayer cross-linking, intercalation cations, polymers, inorganic particles, etc., clarify relationship between microstructure which may some new insight regarding structural high-performance Based on above analysis, future proposed.

Language: Английский

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Breaking the Permeability-Selectivity Trade-Off: Advanced carbon molecular sieve membranes derived from thermally rearranged Mixed-Matrix membrane precursors

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 335, P. 126163 - 126163

Published: Dec. 24, 2023

Language: Английский

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Rational Design of MXene Hollow Fiber Membranes for Gas Separations

Nano Letters, Journal Year: 2023, Volume and Issue: 23(7), P. 2710 - 2718

Published: March 16, 2023

One scalable and facile dip-coating approach was utilized to construct a thin CO2-selection layer of Pebax/PEGDA-MXene on hollow fiber PVDF substrate. An interlayer spacing 3.59 Å rationally designed precisely controlled for the MXene stacks in coated layer, allowing efficient separation CO2 (3.3 Å) from N2 (3.6 CH4 (3.8 Å). In addition, CO2-philic nanodomains were constructed by grafting PEGDA into interlayers, which enhanced affinity through while non-CO2-philic could promote transport due low resistance. The membrane exhibit optimal performance with permeance 765.5 GPU, CO2/N2 selectivity 54.5, CO2/CH4 66.2, overcoming 2008 Robeson upper bounds limitation. Overall, this endows precise molecular sieving superior separation, be applied control other 2D materials during construction.

Language: Английский

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Advance of self-cleaning separation membranes for oil-containing wastewater treatment

Environmental Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 1, 2024

The formidable challenge of membrane fouling by high-viscosity oils remains a primary impediment to the sustainable application separation membranes in treating oil-contaminated wastewater. Consequently, there is an imperative for development wastewater treatment endowed with self-cleansing capabilities. current review aims delineate landscape tailored Embarking from foundational theories and benchmarks self-cleansing, functionalities were classified into active passive modalities. We encapsulate strides made research, encompassing domains such as super-wettable surfaces, synchronously filtered post-filtration high-efficiency while concurrently identifying extant constraints prospective trajectories. By meticulously categorizing dissecting functionalities, aim this work delving fundamental tenets within intended wastewater, furnishing guidance design advancement oil-water membranes.

Language: Английский

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Processing Polymer Photocatalysts for Photocatalytic Hydrogen Evolution

Materials Horizons, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The processing of conjugated organic materials into films, nanoparticles, and nanofibers, presents significant opportunities to increase their activity for photocatalytic hydrogen evolution scaled-up systems real world applications.

Language: Английский

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