Nano-sized metal organic framework to improve the structural properties and desalination performance of thin film composite forward osmosis membrane

Zirehpour, Alireza; Rahimpour, Ahmad; Ulbricht, Mathias

doi:10.1016/j.memsci.2017.02.049

Cited by 160 publications

(77 citation statements)

References 60 publications

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“…The mesoporous structure of commercial Al 2 O 3 nanoparticles makes it an appropriate nanomaterial to serve as a water channel in the fabrication of FO membranes, such as TiO 2 , SiO 2 and MOFs. 19,37 The elemental composition of Al 2 O 3 nanoparticles is shown in Fig. S2.…”

Section: Characterization Of Al 2 O 3 Nanoparticlesmentioning

confidence: 99%

“…Multiple studies have reported that the B/A ratio is an important parameter related to membrane selectivity in FO processes, where a small B/A ratio is preferred to reduced solute reverse diffusion. 1,15,37,38 Considering the high water permeability and low B/A ratio, the PS 0.5 -TFN 0.05 membrane exhibits good potential for FO application.…”

Section: Effect Of Al 2 O 3 Nanoparticles On Fo Performancementioning

confidence: 99%

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Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer

Ding

Bao

et al. 2017

RSC Adv.

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In the present study, hydrophilic Al 2 O 3 nanoparticles were used as additives in both substrate and polyamide active (PA) layer to improve forward osmosis (FO) membrane properties. Via incorporation of 0.5 wt% Al 2 O 3 into the substrate and 0.05 wt% Al 2 O 3 into the PA layer (PS 0.5 -TFN 0.05 membrane), the water flux reached 27.6 L m À2 h À1 with a relatively low solute reverse flux of 7.1 g m À2 h À1 using DI water as a feed solution and 1 M NaCl as a draw solution. Simultaneously, we found that the incorporation of Al 2 O 3 nanoparticles into both the substrate and PA layer resulted in a better enhancement of FO performance and a higher increase in water flux than the simple incorporation of nanoparticles in substrate. Moreover, the PS 0.5 -TFN 0.05 membrane remained stable during long-term FO tests and under serious water environment. To the best of our knowledge, this is the first study to report the effect of Al 2 O 3 nanoparticles on FO performance, and the results verify the potential use of these nanoparticles in the fabrication of highly permeable FO membranes.

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Section: Characterization Of Al 2 O 3 Nanoparticlesmentioning

confidence: 99%

Section: Effect Of Al 2 O 3 Nanoparticles On Fo Performancementioning

confidence: 99%

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer

Ding

Bao

et al. 2017

RSC Adv.

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“…water permeability has been at least doubled, and the recuperation of fresh water may be more than 60%. These enhancements are the fruits of surface modification, and direct controlling of interfacial polymerization reaction parameters, as well as more efficient conception of the module composition (Uemura and Henmi, 2008;Antrim et al, 2005;Bartels et al, 2008;Zirehpour et al, 2017). Moreover, better comprehension of the membrane composition, connected with progress in membrane description methods, has certainly had a significant contribution (Matsuura, 2001).…”

Section: Membrane Post-synthesis Modificationsmentioning

confidence: 99%

Membrane post-synthesis modifications and how it came about

Ghernaout

2018

Int. j. adv. appl. sci.

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Nowadays, reverse osmosis (RO) is the most largely utilized desalination process at the World level. During the three last decades, amazing progress has been realized in the manufacturing of RO membranes using different materials. However, what is astonishing here is the fact that a new research field was open in a relatively short time with hundreds of scientific publications and patents which are made on membrane post-synthesis modifications in order to improve the structural properties and desalination performance opening a large debate about the membrane fabrication techniques and membranes capacities to deal with various water pollutants. This review aims to discuss this extra technological field dedicated to membranes modifications following their fabrication. As conclusions, membrane fabrication methods are a well-established and developed technology which however needs more technical improvements to overcome the needs of a post-synthesis industry and satisfy quantitatively and qualitatively the water guidelines. On the other hand, the large chemical products use in both membranes synthesis and post-synthesis should be avoided or at least reduced, since monomers, alcohols, acids and bases risk to be realized into drinking water. That is said because RO process has been presented hopefully as a promising powerful and green technology instead of chlorination and coagulation/flocculation which are proven highly polluting with their toxic metal salts injection and poisonous disinfection by-products formation.

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“…Seawater desalination is a very promising means to gain fresh water . Osmosis membrane technology, solar desalination technology, and some other technologies have been used for desalination. Among them, efficient water evaporation technique has attracted tremendous attention due to its distinct advantages, such as inexhaustibility, safety, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

A Flexible, Self‐Floating Composite for Efficient Water Evaporation

et al. 2018

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A flexible, self‐floating W 18 O 49 /carbon foam composite is fabricated by calcining melamine foam with W 18 O 49 as an adsorbate in N 2 atmosphere. This self‐floating property is simply realized by a carbonization process other than the complicated surface modification process. The simple synthesis procedure helps to increase not only the solar absorption but also the retention of W 18 O 49 in the porous net structure. This composite absorbs almost the whole solar spectrum and generates localized heat at the surface, which is beneficial for water evaporation. Its water evaporation rate is 6.6 times higher than that of pure water. It has a stable cyclic performance over ten cycles under the illumination of simulated sunlight (500 W Xe lamp). Its flexibility makes it easy to reuse and transfer, which is evaluated by the bending deformation test. The W 18 O 49 /carbon foam composite is a prospective material in solar energy conversion field, and the preparation procedure is feasible to scale‐up.

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Nano-sized metal organic framework to improve the structural properties and desalination performance of thin film composite forward osmosis membrane

Cited by 160 publications

References 60 publications

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer

Membrane post-synthesis modifications and how it came about

A Flexible, Self‐Floating Composite for Efficient Water Evaporation

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Nano-sized metal organic framework to improve the structural properties and desalination performance of thin film composite forward osmosis membrane

Cited by 160 publications

References 60 publications

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al2O3 nanoparticles into both substrate and polyamide active layer

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al2O3 nanoparticles into both substrate and polyamide active layer

Membrane post-synthesis modifications and how it came about

A Flexible, Self‐Floating Composite for Efficient Water Evaporation

Contact Info

Product

Resources

About

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer

Highly permeable and stable forward osmosis (FO) membrane based on the incorporation of Al₂O₃ nanoparticles into both substrate and polyamide active layer