Preparation, characterization and thermal studies of polymer inclusion cellulose acetate membrane with calix[4]resorcinarenes as carriers

Benosmane, Nadjib; Guedioura, B.; Hamdi, Safouane; Hamdi, Maâmar; Boutemeur, Baya

doi:10.1016/j.msec.2010.03.023

Cited by 36 publications

(16 citation statements)

References 38 publications

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“…Since the exact mechanism of calixarene-gas interaction is not fully understood, many investigations are continuing in this area [46,47]. Furthermore, calixarene is compatible with CA matrix, and previously it was employed effectively as a carrier in cellulose tri acetate (CTA) membrane for aqueous applications [48,49].…”

Section: Introductionmentioning

confidence: 99%

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

et al. 2015

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Cellulose acetate (CA) is a widely applied glassy polymer in the preparation of gas separation membranes. In the present study, hybrid membranes were prepared by incorporating silica (Si) and silica functionalized with ptetranitrocalix[4]arene (Si-CL) into the CA matrix, and their gas permeation abilities were explored with regard to CO 2 , N 2 and CH 4 gases. The diffusion-induced phase separation (DIPS) method was adopted to make pure CA, CA/Si, and CA/Si-CL hybrid membranes. The concentration of Si-CL was varied as 10 wt%, 20 wt% and 30 wt% in the hybrid membranes. The analytical techniques employed for membrane characterization were Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), and X ray-diffraction (XRD) analysis. The proper interaction of Si and Si-CL was confirmed by FTIR analysis. However, the homogenous surface textures of CA/Si, and CA/Si-CL hybrid membranes were evaluated through SEM. Furthermore, AFM analysis was performed to examine the surface roughness of these hybrid membranes. The changes in the crystallinity of CA were also examined by XRD analysis after adding Si and Si-CL. Moreover, the tensile strength of the CA/Si hybrid membrane was found to be better than that of CA/Si-CL hybrid membranes. CO 2 , CH 4 and N 2 gases were used for gas permeation experiments at 400 kPa. Among CO 2 and CH 4 gases, the permeability of N 2 was high in CA/Si-CL hybrid membranes, and N 2 /CO 2 selectivity of these membranes was 22.6.

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Section: Introductionmentioning

confidence: 99%

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

et al. 2015

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“…In addition, a band at 1639 cm −1 is attributed to the interlayer stretching and bending vibration modes of molecular water. The characteristic peaks of CA at 1737 (C = O stretching), 1367 (CH 3 symmetric deformation), 1215 (acetate C−C−O stretching), and 1032 (C−O stretching) cm −1 are clearly observed which are generally in accordance with the other literature results . Furthermore, absorptions at 2922 and 1431 cm −1 are attributed to CH 3 asymmetric stretching and CH 3 asymmetric deformation, respectively.…”

Section: Resultsmentioning

confidence: 77%

Cellulose acetate/nano‐porous zeolite mixed matrix membrane for CO₂ separation

2014

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The aim of this research is to investigate the fabrication and evaluation of a new mixed matrix membrane for CO2/N2 separation. Micro‐sized nano‐porous sodium zeolite‐Y (NaY zeolite) particles (0–25 wt.%) were incorporated into the dense (homogeneous) cellulose acetate (CA) membrane to prepare the CA/NaY mixed matrix membranes. One of the most important features of this study is to explore the simultaneous effect of annealing and particle loadings on the morphology and gas permeation properties of the prepared membranes. The membranes were characterized by Fourier transform infrared spectroscopy – attenuated total reflectance (FTIR‐ATR) and scanning electron microscopy (SEM) analyses. Also, the CO2/N2 separation performance of the membranes was evaluated by single gas permeation measurements. The results showed that annealing causes a considerable improvement in the morphology of the CA and the related mixed matrix membranes. Additionally, more than a two‐fold increase in CO2 permeability with no considerable decrease in CO2/N2 selectivity was achieved by a 20 wt.% NaY loading into the CA membrane. The results of investigating the effect of pressure (4–22 bars) on CO2 permeability showed a reduction in the CO2‐induced plasticization of glassy CA with a significant shift in the plasticization pressure toward higher values. The introduction of NaY zeolite in the annealed CA membranes, shifted the plasticization pressure from 12.76 to 16.86 bars when the zeolite loading was changed from 0 to 25 wt.%.

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“…In addition to these, cellulose acetate membrane has a porous physical structure, which helps in the movement of both ions and water molecules toward the sample or in the opposite direction. [31][32][33][34] As seen in Table 2, the concentration of SPS salt immobilised onto the cellulose acetate membrane gives an impression of the response slope when tested at various concentrations of KCl solution and pH of the solution when the solid-state reference electrode was coupled with the standard Ag/AgCl reference electrode with double junction type. In this work, the solid-state reference electrode functioned as a working electrode.…”

Section: Effects Of Sodium Salt Of Poly(anethol Sulfonic Acid)mentioning

confidence: 99%

“…15,16,47 The porous form of cellulose acetate membrane also contributed to the onset of the process of leaching of SPS salts from the cellulose acetate matrix. [29][30][31][32][33][34] From Figure 5, it can be observed that the stability of the solidstate reference electrode was initially low and started to degrade after 35 h.…”

Section: Drift Studymentioning

confidence: 99%

Development of Solid-state Reference Electrode Based on Sodium Polyanethol Sulfonate Immobilised on Cellulose Acetate

Alva¹,

Aziz²,

Syono³

et al. 2017

JPS

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Preparation, characterization and thermal studies of polymer inclusion cellulose acetate membrane with calix[4]resorcinarenes as carriers

Cited by 36 publications

References 38 publications

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Cellulose acetate/nano‐porous zeolite mixed matrix membrane for CO₂ separation

Development of Solid-state Reference Electrode Based on Sodium Polyanethol Sulfonate Immobilised on Cellulose Acetate

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Preparation, characterization and thermal studies of polymer inclusion cellulose acetate membrane with calix[4]resorcinarenes as carriers

Cited by 36 publications

References 38 publications

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Comparison of silica and novel functionalized silica-based cellulose acetate hybrid membranes in gas permeation study

Cellulose acetate/nano‐porous zeolite mixed matrix membrane for CO2 separation

Development of Solid-state Reference Electrode Based on Sodium Polyanethol Sulfonate Immobilised on Cellulose Acetate

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Cellulose acetate/nano‐porous zeolite mixed matrix membrane for CO₂ separation