Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO<sub>2</sub> separation

Lee, Hyun‐Hee; Park, Seul Chan; Roh, Ji Soo; Moon, Gi Hyeon; Shin, Jae Eun; Kang, Yong Soo; Park, Ho Bum

doi:10.1039/c7ta06049a

Cited by 39 publications

(23 citation statements)

References 38 publications

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“…The only exception in the observed trend is possibly represented by the composite with the lower loading, which indeed showed a very limited increase for CO 2 permeability (371 Barrer with respect to the 365 Barrer measured for pristine Pebax ® ). Similar behavior was already observed in a previous work made by Lee et al that were able to improve the permselective properties of polymer matrix Pebax ® 1657 loaded with “ZPGO” (that is, ZIF-8 grown on porous graphene oxide), by employing such low filler concentrations [ 67 ]. In the present case, however, the difference observed is too limited, within 2%, to conclude that the observed increase is real and not due to an experimental uncertainty, which was also in the order of 2%, considering thickness variation in the membranes and uncertainty in the experimental tests.…”

Section: Resultssupporting

confidence: 84%

“…Porous graphene oxide is indeed well known to be have reduced area compared the pristine GO and also an higher amount of defects, which makes the nanofiller intrinsically more permeable: Lee et al [ 67 ] demonstrated the formation of pores upon GO, and most likely, such treatment was also able to partially fracture the sheets themselves. On the other hand, fragmentation of GO platelet during PEAGO synthesis can likely be related to the presence of intensive mixing and sonication, which could produce mechanical stresses able to break GO and PEAGO sheets, as demonstrated also by Baig et al [ 72 ].…”

Section: Resultsmentioning

confidence: 99%

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Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

et al. 2020

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In this work, the behavior of new GO-based mixed matrix membranes was tested in view of their use as CO2-selective membrane in post combustion carbon capture applications. In particular, the new materials were obtained by mixing of Pebax® 2533 copolymer with different types of graphene oxide (GO). Pebax® 2533 has indeed lower selectivity, but higher permeability than Pebax® 1657, which is more commonly used for membranes, and it could therefore benefit from the addition of GO, which is endowed with very high selectivity of CO2 with respect to nitrogen. The mixed matrix membranes were obtained by adding different amounts of GO, from 0.02 to 1% by weight, to the commercial block copolymers. Porous graphene oxide (PGO) and GO functionalized with polyetheramine (PEAGO) were also considered in composites produced with similar procedure, with a loading of 0.02%wt. The obtained films were then characterized by using SEM, DSC, XPS analysis and permeability experiments. In particular, permeation tests with pure CO2 and N2 at 35°C and 1 bar of upstream pressure were conducted for the different materials to evaluate their separation performance. It has been discovered that adding these GO-based nanofillers to Pebax® 2533 matrix does not improve the ideal selectivity of the material, but it allows to increase CO2 permeability when a low filler content, not higher than 0.02 wt%, is considered. Among the different types of GO, then, porous GO seems the most promising as it shows CO2 permeability in the order of 400 barrer (with an increase of about 10% with respect to the unloaded block copolymer), obtained without reducing the CO2/N2 selectivity of the materials, which remained in the order of 25.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

et al. 2020

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“…The inherent ultramicroporosity of ZIF-8 is claimed to have increased the solubility selectivity of the hybrid matrix while the high aspect ratio of GO contributed to increase in diffusivity selectivity. Lee et al [ 116 ] developed high surface area ZIF-8 on porous GO by hydrothermal treatment of GO to generate mesopores, followed by growth of nanoparticles. Incorporation of these high surface area nanofillers in PEBAX matrix coupled with the affinity to ZIF framework towards CO 2 resulted in an increased diffusion coefficient at a very low loading (0.02 wt %), leading to an increase in CO 2 permeability from 83 to 183 Barrer with no loss in the CO 2 /N 2 selectivity.…”

Section: Two-dimensional (2d) Nanofillersmentioning

confidence: 99%

Performance of Nanocomposite Membranes Containing 0D to 2D Nanofillers for CO2 Separation: A Review

et al. 2018

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Membrane technology has the potential to be an eco-friendly and energy-saving solution for the separation of CO2 from different gaseous streams due to the lower cost and the superior manufacturing features. However, the performances of membranes made of conventional polymers are limited by the trade-off between the permeability and selectivity. Improving the membrane performance through the addition of nanofillers within the polymer matrix offers a promising strategy to achieve superior separation performance. This review aims at providing a complete overview of the recent advances in nanocomposite membranes for enhanced CO2 separation. Nanofillers of various dimensions and properties are categorized and effects of nature and morphology of the 0D to 2D nanofillers in the corresponding nanocomposite membranes of different polymeric matrixes are discussed with regard to the CO2 permeation properties. Moreover, a comprehensive summary of the performance data of various nanocomposite membranes is presented. Finally, the advantages and challenges of various nanocomposite membranes are discussed and the future research and development opportunities are proposed.

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“…Particularly due to their relatively easy synthesis process as well introducing a huge variety of amide solvents possibilities that can be utilised. ,135,164,175,178,181,201,204,214,215,222,223,238,242,246,260,278,285,298,304,307,318,328,329,335,350,361,369,375,382,388,403,451,480,481,486,500,518]. It was found that 93 studies (18%) showcased the use of general organic solvents such as alcohols, acids and salts[23,27,30,31,44,46,48,62,65,66,75-78,80,84,88,102,116, 118,132,…”

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confidence: 99%

CO2 capture using membrane contactors: a systematic literature review

Hafeez

Safdar

Pallari

et al. 2020

Front. Chem. Sci. Eng.

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With fossil fuel being the major source of energy, CO2 emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO2 capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO2. A systematic review of the literature has been conducted to analyse and assess CO2 removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO2 removal. This current systematic review in CO2 removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO2.

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Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO₂ separation

Abstract: A new concept of nanocomposites, MOFs on porous two-dimensional nanosheets (MP2), was demonstrated and showed great potential in real gas separation.

Cited by 39 publications

References 38 publications

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

Performance of Nanocomposite Membranes Containing 0D to 2D Nanofillers for CO2 Separation: A Review

CO2 capture using membrane contactors: a systematic literature review

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Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO2 separation

Abstract: A new concept of nanocomposites, MOFs on porous two-dimensional nanosheets (MP2), was demonstrated and showed great potential in real gas separation.

Cited by 39 publications

References 38 publications

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

Pebax® 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture

Performance of Nanocomposite Membranes Containing 0D to 2D Nanofillers for CO2 Separation: A Review

CO2 capture using membrane contactors: a systematic literature review

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Product

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Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO₂ separation