Characterization of mixed matrix membranes by adsorption and fractal analysis

Cigdem Atalay-Oral; Melkon Tatlier

doi:10.1080/01496395.2018.1540638

Characterization of mixed matrix membranes by adsorption and fractal analysis

Cigdem Atalay-Oral^*, Melkon Tatlier

^*Corresponding author for this work

Department of Chemical Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

CO₂, CH₄ and N₂ adsorption properties of KFI- and RHO-polyvinyl acetate mixed matrix membranes (MMMs) were determined. A comparison was made between experimental and calculated adsorption capacities of the membranes. The fractal dimensions of the membranes were calculated from CO₂ adsorption data. A common discrepancy existed between experimental and calculated adsorption capacities of MMMs, which may be rationalized by the presence of an interphase between filler and polymer phases. The higher fractal dimension of KFI-polyvinyl acetate MMM, compared to RHO-polyvinyl acetate MMM indicated higher size sensitivity and thus an additional advantage for the adsorption of smaller molecules, such as CO₂.

Original language	English
Pages (from-to)	2323-2333
Number of pages	11
Journal	Separation Science and Technology
Volume	54
Issue number	14
DOIs	https://doi.org/10.1080/01496395.2018.1540638
Publication status	Published - 22 Sept 2019

Bibliographical note

Publisher Copyright:
© 2018, © 2018 Taylor & Francis.

Funding

This work was supported by the ITU Scientific Research Projects Unit under [Grant # 38836].

Funders	Funder number
ITU Scientific Research Projects Unit
Firat University Scientific Research Projects Management Unit	38836

Keywords

adsorption
fractal
mixed matrix membrane
Zeolite

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10.1080/01496395.2018.1540638

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title = "Characterization of mixed matrix membranes by adsorption and fractal analysis",

abstract = "CO2, CH4 and N2 adsorption properties of KFI- and RHO-polyvinyl acetate mixed matrix membranes (MMMs) were determined. A comparison was made between experimental and calculated adsorption capacities of the membranes. The fractal dimensions of the membranes were calculated from CO2 adsorption data. A common discrepancy existed between experimental and calculated adsorption capacities of MMMs, which may be rationalized by the presence of an interphase between filler and polymer phases. The higher fractal dimension of KFI-polyvinyl acetate MMM, compared to RHO-polyvinyl acetate MMM indicated higher size sensitivity and thus an additional advantage for the adsorption of smaller molecules, such as CO2.",

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T1 - Characterization of mixed matrix membranes by adsorption and fractal analysis

AU - Atalay-Oral, Cigdem

AU - Tatlier, Melkon

PY - 2019/9/22

Y1 - 2019/9/22

N2 - CO2, CH4 and N2 adsorption properties of KFI- and RHO-polyvinyl acetate mixed matrix membranes (MMMs) were determined. A comparison was made between experimental and calculated adsorption capacities of the membranes. The fractal dimensions of the membranes were calculated from CO2 adsorption data. A common discrepancy existed between experimental and calculated adsorption capacities of MMMs, which may be rationalized by the presence of an interphase between filler and polymer phases. The higher fractal dimension of KFI-polyvinyl acetate MMM, compared to RHO-polyvinyl acetate MMM indicated higher size sensitivity and thus an additional advantage for the adsorption of smaller molecules, such as CO2.

AB - CO2, CH4 and N2 adsorption properties of KFI- and RHO-polyvinyl acetate mixed matrix membranes (MMMs) were determined. A comparison was made between experimental and calculated adsorption capacities of the membranes. The fractal dimensions of the membranes were calculated from CO2 adsorption data. A common discrepancy existed between experimental and calculated adsorption capacities of MMMs, which may be rationalized by the presence of an interphase between filler and polymer phases. The higher fractal dimension of KFI-polyvinyl acetate MMM, compared to RHO-polyvinyl acetate MMM indicated higher size sensitivity and thus an additional advantage for the adsorption of smaller molecules, such as CO2.

KW - adsorption

KW - fractal

KW - mixed matrix membrane

KW - Zeolite

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DO - 10.1080/01496395.2018.1540638

M3 - Article

AN - SCOPUS:85058123722

SN - 0149-6395

VL - 54

SP - 2323

EP - 2333

JO - Separation Science and Technology

JF - Separation Science and Technology

IS - 14

ER -

Characterization of mixed matrix membranes by adsorption and fractal analysis

Abstract

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Keywords

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