The effect of silica nanoparticles on polysulfone–polyethylene glycol (PSF/PEG) composite membrane on gas separation and rheological properties of nanocomposites

Salahshoori, Iman; Nasirian, Danial; Rashidi, Niloufar; Hossain, Kamal; Hatami, Ali; Hassanzadeganroudsari, Majid

doi:10.1007/s00289-020-03255-8

Cited by 43 publications

(13 citation statements)

References 68 publications

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“…Salahshoori et al, noted that incorporating of SiO 2 nanoparticle in the membrane would enhance the tensile strength of the pristine membrane due to the uniform distribution of SiO 2 nanoparticles in the membranes. 47 This is in agreement with the morphological characterization in Figure 4, indicating that the uniform silica nanoparticle distribution increases nanocomposite membrane tensile strength. Besides, SiO 2 nanoparticles play a role as physical transfusion coupling between polymer parts, which reduces cracks or cavities at the membrane weak points.…”

Section: Ftir Characterizationsupporting

confidence: 89%

“…48 above 15 wt% in polysulfone (PSF) membranes, the tensile strength decreased due to the accumulation of SiO 2 particles in PSF membrane. 47 These results imply that the presence of SiO 2 as inorganic nanoparticles strengthens the nanocomposite membrane due to the good dispersion of SiO 2 nanoparticles and the solid interaction between SiO 2 nanoparticles with the CTA matrix. 49 Therefore, the interfacial interaction between inorganic nanoparticles and polymer matrix should be considered an important factor affecting the tensile strength; however, excessive amounts of particles loaded would initiate the tensile strength to be decreased.…”

Section: Ftir Characterizationmentioning

confidence: 78%

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Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes

Prihatiningtyas

Hartanto

Ballesteros

et al. 2020

J of Applied Polymer Sci

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A series of cellulose triacetate/Ludox-silica nancomposite pervaporation membranes was successfully prepared via solution casting, aiming to improve the performance of cellulose triacetate membranes for desalination. The fabricated nanocomposite membranes were characterized to study the membrane morphology, chemical composition, mechanical properties, and surface hydrophilicity. Furthermore, the desalination performance was investigated as a function of silica (SiO 2) loading (ranging from 1 to 4 wt%) and feed concentration at 30 and 60 g/L of sodium chloride (NaCl). Pervaporation experiments showed that incorporating 4 wt% SiO 2 into a cellulose triacetate (CTA) membrane increased the water flux by a factor 2.5 compared with pristine CTA (from 2.2 to 6.1 kg m −2 h −1) for a 30 g/L NaCl feed solution at 70 C, while the salt rejection remained above 99%. The CTA/4 wt% SiO 2 membrane was found to have only 21% flux reduction when tested with a 60 g/L NaCl feed solution, without changes in membrane selectivity. This suggests that the developed CTA/Ludox-SiO 2 nanocomposite pervaporation membrane is suitable for desalination.

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Section: Ftir Characterizationsupporting

confidence: 89%

Section: Ftir Characterizationmentioning

confidence: 78%

Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes

Prihatiningtyas

Hartanto

Ballesteros

et al. 2020

J of Applied Polymer Sci

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“…13a we see two factors extraction concentration (X 1 ) and surfactant concentration (X 2 ) with response rate, while factors X 4 , X 3 and X 5 are in the lower, middle and lower positions, respectively. By looking at this graph, we find that if factor X 1 is at its highest level (3.5-5) and factor (X 2 ) is at its highest level (3)(4)(5), the highest response rate for hafnium ion recovery would be achieved.…”

Section: Contour Plot Graphsmentioning

confidence: 99%

“…However, to date, membrane processes have found little industrial applications. The reasons for this can be due to its low separation rate and selectivity [2][3][4][5]. Nonetheless, to further improve the separation efficiency, a newer method has been developed.…”

Section: Introductionmentioning

confidence: 99%

Investigation of experimental results and D-optimal design of hafnium ion extraction from aqueous system using emulsion liquid membrane technique

2020

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Hafnium metal is used in a wide range of industries such as microprocessor manufacturing, nuclear reactors and special alloys due to its physical, chemical and radiation properties. Emulsion liquid membrane (ELM) is an effective and efficient alternative for heavy metal separation compared to conventional methods due to high selectivity, energy-saving, high mass transfer and low operating capital. In this study, Cyanex 572 as a carrier, Span 85 as a surfactant, hydrochloric acid as an internal phase and kerosene as a diluent were used. In the first part of the study, the stability of the emulsions was investigated. The most stable emulsions were obtained by adding PIB polymer (3% w/v), Span 85 surfactant (3% w/v) and stirring for 15 min. In the second part, the separation of hafnium metal ions from aqueous solutions was investigated using ELM technique. The highest separation was obtained at 4% (v/v) as carrier concentration, 4% (w/v) as surfactant concentration, the membrane-to-feed volume ratio of 20/100 and W/O/W emulsion stirring rate and time equal to 400 rpm and 5 min, respectively. Moreover, to optimize the factors influencing the tests, the design of experiment (DOE) was performed using D-optimal method via Design Expert 10 software. Based on DOE results, the maximum extraction (> 99%) was achieved when the carrier concentration, the surfactant concentration, W/O/W emulsion stirring time, W/O/W emulsion stirring rate and emulsion volume/feed phase ratio were 4.49% v/v, 3.90% w/v, 11.49 min, 310.54 rpm and 2:1, respectively.

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“…The advent of mixed matrix membranes (MMMs) has led to significant membrane performance advances [1]. The simultaneous increase in permeability, selectivity and physicochemical properties of the membrane are the main advantages of increasing the performance of MMMs compared to traditional membranes (polymeric and inorganic membranes) [2].…”

Section: Introductionmentioning

confidence: 99%

Recent advances in synthesis and applications of mixed matrix membranes

2021

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Researchers are currently considering membranes separation processes due to their eco-friendly, process simplicity and high efficiency. Selecting a suitable and efficient operation is the primary concern of researchers in the field of separation industries. In recent decades, polymeric and inorganic membranes in the separation industry have made significant progress. The polymeric and inorganic membranes have been challenged due to their competitiveness in permeability and selectivity factors. A combination of nanoparticle fillers within the polymer matrix is an effective method to increase polymeric and inorganic membranes’ efficiency in separation processes. Mixed matrix membranes (MMMs) have been considered by the separation industry due to high mechanical and physicochemical, and transfer properties. Moreover, gas separation, oil treatment, heavy metal ions removal, water treatment and oil-water separation are common MMMs applications. Selecting suitable polymer blends and fillers is the key to the MMMs construction. The combination of rubbery and glassy polymers with close solubility parameters increases the MMMs performance. The filler type and synthesis methods also affect the morphological and transfer properties of MMMs significantly. Zeolites, graphene oxide (GO), nanosilica, carbon nanotubes (CNTs), zeolite imidazole frameworks (ZIFs) and metal-organic frameworks (MOFs) are used in the MMMs synthesis as fillers. Finally, solution mixing, polymerization in situ and sol-gel are the primary synthesising MMMs methods.

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The effect of silica nanoparticles on polysulfone–polyethylene glycol (PSF/PEG) composite membrane on gas separation and rheological properties of nanocomposites

Cited by 43 publications

References 68 publications

Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes

Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes

Investigation of experimental results and D-optimal design of hafnium ion extraction from aqueous system using emulsion liquid membrane technique

Recent advances in synthesis and applications of mixed matrix membranes

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The effect of silica nanoparticles on polysulfone–polyethylene glycol (PSF/PEG) composite membrane on gas separation and rheological properties of nanocomposites

Cited by 43 publications

References 68 publications

Cellulose triacetate/LUDOX‐SiO2 nanocomposite for synthesis of pervaporation desalination membranes

Cellulose triacetate/LUDOX‐SiO2 nanocomposite for synthesis of pervaporation desalination membranes

Investigation of experimental results and D-optimal design of hafnium ion extraction from aqueous system using emulsion liquid membrane technique

Recent advances in synthesis and applications of mixed matrix membranes

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Product

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Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes

Cellulose triacetate/LUDOX‐SiO₂ nanocomposite for synthesis of pervaporation desalination membranes