Investigation of amino and amidino functionalized Polyhedral Oligomeric SilSesquioxanes (POSS®) nanoparticles in PVA-based hybrid membranes for CO2/N2 separation

Guerrero, Gabriel; Hägg, May‐Britt; Kignelman, Gertrude; Simon, Christian; Peters, Thijs; Rival, Nicolas; Denonville, Christelle

doi:10.1016/j.memsci.2017.09.014

Cited by 28 publications

(17 citation statements)

References 35 publications

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“…The membrane performance was measured in a feed gas mixture at a pressure of 1.3, 2, and 3 bars with a mixed gas permeation test rig, described elsewhere [ 34 ]. The experimental specifications, such as flow set parameters, temperature, and gas composition in feed and sweep streams, can be found in our previous work [ 32 ]. The CO 2 flux and CO 2 /N 2 selectivity were calculated from the measured permeate CO 2 and N 2 concentration in the sweep flow gas.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous work [ 32 ], we have tested amino POSS ® without achieving any improvement in CO 2 separation. In our effort to increase the performance of the membranes, we have modified these amino nanoparticles into the amidino and lactamide particles reported here.…”

Section: Introductionmentioning

confidence: 99%

“…Amidino POSS ® and Lactamide POSS ® would be expected to exhibit different mechanisms toward CO 2 capture. While Lactamide POSS ® would catch CO 2 through forming a competition between carbonate and carbamate, Amidino POSS ® would only form carbonate which is beneficial in term of cyclic capacity [ 32 ]. Moreover, functionalization of aminopropyl POSS ® with lactic moieties is believed to improve compatibility of Lactamide POSS ® with PVA, as it contains secondary hydroxyl groups.…”

Section: Introductionmentioning

confidence: 99%

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CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer

et al. 2018

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In this article, we studied two different types of polyhedral oligomeric silsesquioxanes (POSS®) functionalized nanoparticles as additives for nanocomposite membranes for CO2 separation. One with amidine functionalization (Amidino POSS®) and the second with amine and lactamide groups functionalization (Lactamide POSS®). Composite membranes were produced by casting a polyvinyl alcohol (PVA) layer, containing either amidine or lactamide functionalized POSS® nanoparticles, on a polysulfone (PSf) porous support. FTIR characterization shows a good compatibility between the nanoparticles and the polymer. Differential scanning calorimetry (DSC) and the dynamic mechanical analysis (DMA) show an increment of the crystalline regions. Both the degree of crystallinity (Xc) and the alpha star transition, associated with the slippage between crystallites, increase with the content of nanoparticles in the PVA selective layer. These crystalline regions were affected by the conformation of the polymer chains, decreasing the gas separation performance. Moreover, lactamide POSS® shows a higher interaction with PVA, inducing lower values in the CO2 flux. We have concluded that the interaction of the POSS® nanoparticles increased the crystallinity of the composite membranes, thereby playing an important role in the gas separation performance. Moreover, these nanocomposite membranes did not show separation according to a facilitated transport mechanism as expected, based on their functionalized amino-groups, thus, solution-diffusion was the main mechanism responsible for the transport phenomena.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer

et al. 2018

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“…3D nanomaterials with rigid cage-like structure offer some structural advantages that are important for a gas-separation nanocomposite membrane. The last decade has witnessed tremendous efforts in developing MMM gas separation membranes based on 3D zeolite [ 102 , 103 , 104 ], MOF [ 105 , 106 , 107 ] and POSS [ 108 , 109 , 110 ]. In particular, MOFs exhibit a strong affinity towards CO 2 molecules and are able to enhance CO 2 solubility in the membrane hence offering excellent CO 2 separation performance [ 111 , 112 ].…”

Section: Tailoring the Dimensions Of Nanostructures To The Separatmentioning

confidence: 99%

Nanocomposite Membranes for Liquid and Gas Separations from the Perspective of Nanostructure Dimensions

2020

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One of the critical aspects in the design of nanocomposite membrane is the selection of a well-matched pair of nanomaterials and a polymer matrix that suits their intended application. By making use of the fascinating flexibility of nanoscale materials, the functionalities of the resultant nanocomposite membranes can be tailored. The unique features demonstrated by nanomaterials are closely related to their dimensions, hence a greater attention is deserved for this critical aspect. Recognizing the impressive research efforts devoted to fine-tuning the nanocomposite membranes for a broad range of applications including gas and liquid separation, this review intends to discuss the selection criteria of nanostructured materials from the perspective of their dimensions for the production of high-performing nanocomposite membranes. Based on their dimension classifications, an overview of the characteristics of nanomaterials used for the development of nanocomposite membranes is presented. The advantages and roles of these nanomaterials in advancing the performance of the resultant nanocomposite membranes for gas and liquid separation are reviewed. By highlighting the importance of dimensions of nanomaterials that account for their intriguing structural and physical properties, the potential of these nanomaterials in the development of nanocomposite membranes can be fully harnessed.

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“…A glassy polymer poses distinct textural characteristics, creating synergetic performance with the inorganic filler to separate certain gas mixtures by tailoring free volume cavities. Many studies have been carried out to combine different glassy polymer properties with several types of silica particles such as the combination between high chain packing density glassy polymer with nano-sized silica particles [12][13][14][15][16][17], high density glassy polymers with fumed silica particles [5,[18][19][20][21][22][23][24][25], hyperbranched glassy polymer with nano-sized silica particles [26][27][28], crosslinked glassy polymer with fumed silica particles [29], high density glassy polymers with mesoporous silica particles [9,11,[30][31][32][33][34][35][36], hyperbranched glassy polymer with hollow silica microspheres [37], sulfonated glassy polymer with silica microspheres [38], glassy polymer with siloxane-type silica particles [39][40][41][42], and hyperbranched glassy polymer with mesoporous silica [43].…”

Section: Introductionmentioning

confidence: 99%

Silica applied as mixed matrix membrane inorganic filler for gas separation: a review

Setiawan

Chiang

2019

Sustain Environ Res

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The trade-off relationship between gas permeability and selectivity is well-known as the primary barrier to developing polymeric membranes for the gas separation process. Mixed matrix membranes (MMMs) can be promoted as a solution to produce the desired membrane for gas separation processes. The general idea for synthesizing MMMs is to induce the thermal, electrical, mechanical, and molecular sieve properties of these nano materials into the base membrane. The incorporation of silica particles with molecular sieving properties in the polymer matrix is expected to lead to higher permeability and/or higher selectivity, compared to polymeric membranes. This paper reviews various types of silica incorporated into a polymer matrix and their gas transport mechanisms, MMM preparation methods and effect of silica on MMM characteristics and gas separation performance. MMM gas transport models after silica incorporation are also reviewed. In addition, the challenges and future works in developing MMMs with silica particles as inorganic filler are discussed.

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Investigation of amino and amidino functionalized Polyhedral Oligomeric SilSesquioxanes (POSS®) nanoparticles in PVA-based hybrid membranes for CO2/N2 separation

Cited by 28 publications

References 35 publications

CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer

CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer

Nanocomposite Membranes for Liquid and Gas Separations from the Perspective of Nanostructure Dimensions

Silica applied as mixed matrix membrane inorganic filler for gas separation: a review

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