Synthesis and characterization of oriented MFI membranes prepared by secondary growth

Lovallo, Mark; Gouzinis, Anastasios; Tsapatsis, Michael

doi:10.1002/aic.690440820

Cited by 207 publications

(104 citation statements)

References 22 publications

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“…Inter-crystalline molecular sieving occurs when the electrical double layers of these adsorbed ions overlap and inhibit the passage of charged ions [55][56] . Hydrophilic zeolite membranes previously applied for gas separations are composed of a loose, thick zeolite film through which separation occurs [68][69][70][71] . However, the new RO membranes being developed require an ultra-thin, dense layer and so pains must be taken to form nanoscale zeolite coatings to produce membranes with permeability on par with polymeric RO membranes.…”

Section: Zeolite-coated Ceramic Membranesmentioning

confidence: 99%

A review of water treatment membrane nanotechnologies

Pendergast

Hoek

2011

Energy Environ. Sci.

1,827

917

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We thank the reviewers for their insightful comments and we have revised the above referenced manuscript in response. In addition, we addressed each reviewer comment in an itemized fashion in the attached "Response to Reviewer Comments."We have uploaded high resolution (600 dpi minimum) TIF files for each image in the article. We have kept the images in color for the online version, but please convert these to grey-scale for the print version. We have ensured that no information is lost from the figure upon conversion.We feel we have adequately addressed all reviewer comments and hope that you will accept our review paper for publication in Energy & Environmental Science without further revision. Figure 6. Percolation Threshold was removed because it also seemed to provide superfluous detail. Section 3.2.1. Mixed Matrix MembranesSelections have been deleted due to excessive explanation of mixed matrix theory; the detail of background theory here appeared to be out of proportion with that in other sections. The important points from the deleted paragraphs have, however, been shortened and inserted into the present introduction so that major points are not lost. Also, it was re-emphasized that details about gas separation membranes were included only to show the past application and strength of these materials now being re-engineered for water treatment purposes. Section 3.3.3. Isoporous Block Copolymer MembranesSelections have been deleted, again when out of proportion detail in background explanation was found. Within the particular works cited and described, some specific details have been removed or minimized in order to highlight the most important achievement of each work. Lengthy block copolymer names have also been removed in most cases, in lieu of the type (i.e., tri-block, homopolymer) so that the individual methods described can be seen in a more general system framework. Some of the extensive deleted sections have been shortened/rewritten and inserted in the section so that significant points are not lost, but only the excess detail. DiscussionThe discussion section has been significantly lengthened and clarified. Each technology is summarized to shed light upon the benefits and hurdles of each material that led to its individual ranking in our system. Each score is justified and explained within our metric.Throughout the text, an effort was made to reduce excess detail and highlight the major hurdles achieved by each researcher cited. Primary accomplishments and future needs for each material were further emphasized throughout the body of this paper.Specific responses to the referees follows. RESPONSES TO REVIEWER COMMENTS REFEREE 1Within their extensive review the authors state that in their review "… the published literature describing … membrane technologies (i.e. nanotechnologies) is critically reviewed and discussed within the context of conventional membrane materials used in the relevant water treatment applications" and "a ranking system was developed …" (all citations from the Abstract) Yet...

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Section: Zeolite-coated Ceramic Membranesmentioning

confidence: 99%

A review of water treatment membrane nanotechnologies

Pendergast

Hoek

2011

Energy Environ. Sci.

1,827

917

View full text Add to dashboard Cite

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“…It will not only cut the equipment and operation cost off, but also be operated continuously if the zeolites can be configured into a membrane form. Since 1990s, much effort has been paid in the synthesis of zeolite membrane [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Till now, different types of zeolite membranes, e.g.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and perfection evaluation of NaA zeolite membrane

Yang

Liu

et al. 2001

Separation and Purification Technology

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“…[55][56][57] This method involves the deposition of a zeolite seed (small presynthesized zeolite particle) layer on a solid support followed by densification via hydrothermal synthesis of the zeolite membrane or polymer cast on top of zeolite layer. 58 A popular framework for CO 2 capture is FAU, either zeolite X or Y due to their excellent CO 2 selective adsorption properties.…”

Section: Zeolite Membrane For Post-combustion Co 2 Capturementioning

confidence: 99%

Post combustion CO2 capture using zeolite membrane

Makertihartha

Dharmawijaya

Zunita

et al. 2017

AIP Conference Proceedings

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Abstract. Carbon dioxide emission is the major cause of global warming. It is believed that reducing carbon dioxide emission from fossil fuel combustion is the most effective way to prevent global warming. Membrane separation using zeolites offers energy efficient way to capture CO 2 compared to conventional separation techniques such as amine absorption. In general, flue gas has high temperature and mainly consisting nitrogen, water, CO 2 and traces of other compounds. These compounds have similar kinetic diameter thus simple Knudsen diffusion cannot separate CO 2 from flue gas mixture. Zeolite is beneficial to post-combustion CO 2 capture not only because it can withstand high temperature but also because of its unique sorption-diffusion separation mechanism. However, zeolite membrane faced a challenge to make it easier to fabricate. Relatively high zeolite price is also a significant hurdle to broaden its application. In order to relieve this problem, a lot of modifications have been performed. Zeolite modification by polymer has gained increased attention for post-combustion CO 2 capture application. To present a clear background, this work will present modifications of zeolite membrane using polymer. Special attention will be given to composite and mixed matrix membrane configuration. Several drawbacks and problems encountered will also be discussed.

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Synthesis and characterization of oriented MFI membranes prepared by secondary growth

Cited by 207 publications

References 22 publications

A review of water treatment membrane nanotechnologies

A review of water treatment membrane nanotechnologies

Synthesis and perfection evaluation of NaA zeolite membrane

Post combustion CO2 capture using zeolite membrane

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