Removal of 2-propanol from water by pervaporation using poly(vinylidene fluoride) membrane filled with carbon black

Sardarabadi, Hamideh; Mousavi, Seyed Mahmoud; Saljoughi, Ehsan

doi:10.1016/j.apsusc.2016.01.227

Cited by 26 publications

(26 citation statements)

References 29 publications

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“…Similar results were presented by Sardarabadi et al and Shirazi et al regarding the preparation and characterization of PVDF/CB and PVA/CNT membranes, respectively.…”

Section: Resultssupporting

confidence: 89%

“…It has been proved that flexible swollen membrane facilitates diffusion of feed components through the membrane, resulting in higher permeation flux and poor selectivity of the membrane. In fact, swelling leads to increase in free volume in the membrane structure and consequently reduces selectivity/separation factor . The DS has a negative effect on the selectivity of membranes so that the increase in the DS causes plasticizing of the surface layer of the membrane.…”

Section: Resultsmentioning

confidence: 99%

“…To estimate the overall performance of the prepared membranes in pervaporation process, both the total permeation flux and separation factor have to be taken into consideration. The PSI is an important parameter, which contains both total permeation flux and separation factor parameters, and is consequently used to evaluate overall pervaporation performance of different membranes . Figure shows the variations of PSI versus increase in the amount of CNTs.…”

Section: Resultsmentioning

confidence: 99%

“…In this experiment, weight of the membranes remained constant after 72 hours. Finally, the DS of the prepared membranes was calculated using Equation :

italicDS = \frac{m_{s} - m_{0}}{m_{0}}

where m s and m 0 are the weights of the swelled and dry membranes, respectively.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Chitosan/polyvinyl alcohol/amino functionalized multiwalled carbon nanotube pervaporation membranes: Synthesis, characterization, and performance

Langari

Saljoughi

Mousavi

2017

Polymers for Advanced Techs

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In the present study, novel biodegradable nanocomposite membranes were prepared by adding the amino functionalized multiwalled carbon nanotube (NH 2 -MWCNT) to the chitosan/polyvinyl alcohol blend polymers, and the obtained membranes were used for dehydration of isopropyl alcohol through pervaporation process. For this purpose, the membranes were prepared with chitosan/polyvinyl alcohol ratio of 4:1 on the basis of "solution casting" method and then crosslinked using glutaraldehyde, after addition of different amounts of NH 2 -MWCNT. The prepared membranes were characterized using scanning electron microscopy, contact angle, mechanical strength, degree of swelling (DS), and biodegradability. Also, the ability of the prepared membranes in dehydration of isopropyl alcohol was determined using pervaporation experiments.Results indicated that contact angle, mechanical resistance, separation factor (α), and pervaporation separation index were increased with the addition of NH 2 -MWCNT up to 10 wt% (relative to the total amount of polymer) and then decreased in the higher presence of nanotubes (15 wt%). Furthermore, the DS and permeate flux were first decreased and then increased for the same mentioned amounts of additive. In this study, optimized membrane was obtained by the addition of 10 wt% NH 2 -MWCNT. This membrane showed the maximum α (99.5), pervaporation separation index parameter (78.29 kg m −2 h −1), biodegradability, and mechanical stability as well as minimum DS.

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“…Similar results were presented by Sardarabadi et al and Shirazi et al regarding the preparation and characterization of PVDF/CB and PVA/CNT membranes, respectively.…”

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…In this experiment, weight of the membranes remained constant after 72 hours. Finally, the DS of the prepared membranes was calculated using Equation :

italicDS = \frac{m_{s} - m_{0}}{m_{0}}

where m s and m 0 are the weights of the swelled and dry membranes, respectively.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Chitosan/polyvinyl alcohol/amino functionalized multiwalled carbon nanotube pervaporation membranes: Synthesis, characterization, and performance

Langari

Saljoughi

Mousavi

2017

Polymers for Advanced Techs

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“…Carbon black (CB) is a form of paracrystalline carbon with a large specific surface area that is commonly used as a reinforcing filler in rubbers or a color pigment in plastics and paints. In terms of its high surface‐area‐to‐volume ratio, low cost, and easy production, it has also been incorporated into polymeric matrixes to prepare mixed‐matrix membranes and enhance their performances in the separation of organic compounds from their dilute solutions via PV . Consequently, in this study, we fabricated novel composite membranes by introducing CBs into a PIM‐1 matrix to removal butanol from diluted aqueous solutions by PV.…”

Section: Introductionmentioning

confidence: 99%

Preparation of polymer of intrinsic microporosity composite membranes and their applications for butanol recovery

Lan

Peng

2018

J of Applied Polymer Sci

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We fabricated novel composite membranes composed of a polymer of intrinsic microporosity (PIM‐1) and carbon black (CB) nanoparticles functionalized with the silane coupling agent aminopropyl triethoxysilane to recover butanol from aqueous solutions by pervaporation (PV). Scanning electron microscopy showed that the composite membranes were dense and defect free and had good adhesion with substrates. Compared with the those of pristine PIM‐1 membranes, the water contact angles of the composite membranes increased from around 86° to more than 90°; this confirmed the improvement of the hydrophobicity. The swelling degree of the 6 wt % CB‐filled PIM‐1 membranes dropped 23%; this indicated an increase in the swelling resistance. Furthermore, the PV results show experimentally that the incorporation of the functionalized CBs into the PIM‐1 matrix considerably improved both the permeability and selectivity to butanol. At a 4 wt % CB content, the optimum separation performance, with a separation factor of 19.7 and a permeation flux of 1116 g m−2 h−1, was achieved in an aqueous solution containing 5 wt % butanol at 30°C. It was noteworthy that the as‐fabricated membranes exhibited a good separation stability. This is a step forward in terms of continuous butanol production with hybrid membranes in fermentation processes. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46912.

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Preparation of polyphenylsulfone/graphene nanocomposite membrane for the pervaporation separation of cumene from water

Rostami

Saljoughi

Mousavi

et al. 2021

Polymers for Advanced Techs

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Polyphenylsulfone (PPSU) was applied for the first time in the hydrophobic PV process. Nanocomposite membranes of PPSU/graphene (Gr) nanosheets were prepared and used to separate isopropyl benzene (cumene) from water via pervaporation (PV).Analysis of the mechanical properties of the membranes showed that the tensile strength and Young's modulus had an increasing trend with the incorporation of Gr into PPSU. The water contact angle of the membranes had a rising trend with the addition of Gr, confirming the improved hydrophobicity of membranes. In the PV experiments, the membrane containing 3.5 wt% Gr provided the highest separation factor, which was 4.5-fold as much as that of the neat PPSU membrane. Cumene separation from water by the PPSU/3.5 wt% Gr membrane was associated with the total flux of 132.73 gMH, the separation factor of 1566.36, and the PSI of 208,124.8 gMH.

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Removal of 2-propanol from water by pervaporation using poly(vinylidene fluoride) membrane filled with carbon black

Cited by 26 publications

References 29 publications

Chitosan/polyvinyl alcohol/amino functionalized multiwalled carbon nanotube pervaporation membranes: Synthesis, characterization, and performance

Chitosan/polyvinyl alcohol/amino functionalized multiwalled carbon nanotube pervaporation membranes: Synthesis, characterization, and performance

Preparation of polymer of intrinsic microporosity composite membranes and their applications for butanol recovery

Preparation of polyphenylsulfone/graphene nanocomposite membrane for the pervaporation separation of cumene from water

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