2021
DOI: 10.3390/membranes11020078
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Coal Fly Ash Derived Silica Nanomaterial for MMMs—Application in CO2/CH4 Separation

Abstract: In order to obtained high selective membrane for industrial applications (such as natural gas purification), mixed matrix membranes (MMMs) were developed based on polysulfone as matrix and MCM-41-type silica material (obtained from coal fly ash) as filler. As a consequence, various quantities of filler were used to determine the membranes efficiency on CO2/CH4 separation. The coal fly ash derived silica nanomaterial and the membranes were characterized in terms of thermal stability, homogeneity, and pore size … Show more

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Cited by 30 publications
(20 citation statements)
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“… 9 11 Some arguments against the use of this type of inorganic template material are related to the production cost and scalability. 9 12 In this sense, production optimization and lower cost techniques have been explored, including use of alternative silicon sources such as rice husk 13 , 14 or coal fly ash 15 and washing methods with environmentally friendly solvents to remove the template. 12 Additionally, the ability of SBA-15 to host a large series of functional groups by methods of cocondensation, isomorphic replacement, or grafting leads it to be a promising porous solid 10 that opens a tremendously valuable possibility of developing solids with very specific characteristics, for industrial applications related to adsorption processes 16 , 17 and membrane separation, 18 , 19 in pharmaceutical applications like drug delivery, 20 , 21 biosensing, 22 , 23 and for catalysis.…”
Section: Introductionmentioning
confidence: 99%
“… 9 11 Some arguments against the use of this type of inorganic template material are related to the production cost and scalability. 9 12 In this sense, production optimization and lower cost techniques have been explored, including use of alternative silicon sources such as rice husk 13 , 14 or coal fly ash 15 and washing methods with environmentally friendly solvents to remove the template. 12 Additionally, the ability of SBA-15 to host a large series of functional groups by methods of cocondensation, isomorphic replacement, or grafting leads it to be a promising porous solid 10 that opens a tremendously valuable possibility of developing solids with very specific characteristics, for industrial applications related to adsorption processes 16 , 17 and membrane separation, 18 , 19 in pharmaceutical applications like drug delivery, 20 , 21 biosensing, 22 , 23 and for catalysis.…”
Section: Introductionmentioning
confidence: 99%
“…An ideal wound dressing should adhere to the wound surface and not to the wound bed, it should also be non-antigenic, biocompatible, semi-permeable, biodegradable, elastic but resistant, and cost-effective. It has to give protection against bacterial, infectious, mechanical, and thermal agents, to modulate the level of wound moisture, and to entrap and deliver drugs or other molecules [3][4][5]. Alginate, chitosan, collagen, and cellulose are the most used biomaterials for wound-dressing products [3,[6][7][8][9][10].…”
Section: Introductionmentioning
confidence: 99%
“…Over the past decades, MSNs have attracted much attention of the scientific community as they have found numerous applications in different fields of research. As some examples, MSNs have been widely applied in catalysis [ 3 , 4 , 5 , 6 ], as nanomaterials for energy storage and conversion [ 7 , 8 ], for processes of gas separation and water purification [ 9 , 10 ], and in biomedicine as nanomaterials for bioimaging, biosensing, or drug delivery [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ].…”
Section: Introductionmentioning
confidence: 99%