Preparation, characterization, and performance evaluation of sepiolite-based nanocomposite membrane for desalination

Khodami, Samaneh; Mehdipour‐Ataei, Shahram; Babanzadeh, Samal

doi:10.1016/j.jiec.2019.10.009

Cited by 9 publications

(6 citation statements)

References 41 publications

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“…Using Equation (1), water absorption of the prepared membranes was calculated. First, dried samples were weighted, and then the weight of samples after putting them into deionized water for 24 and 120 h was measured again 3

Water absorption (() %) = \frac{W_{w} - W_{d}}{W_{d}} \times 100,

where W w and W d are the wet and dry weights of the membrane samples, respectively 15 .…”

Section: Methodsmentioning

confidence: 99%

“…The concentration of salt in the receptor chamber was followed as a function of time by applying the conductivity meter. The salt permeability was counted using the Equation (4): 3

P_{S} t = - \frac{V_{R} * L}{2 A} \ln ([], 1 - \frac{2 C_{R}^{[t]}}{C_{D}^{([], 0)}}),

where

C_{R}^{[t]}

is the receptor concentration at time t ,

C_{D}^{[0]}

is the initial donor concentration, V is the donor or receptor volume (35 ml in this case), and A is the active membrane area (1.77 cm 2 ).…”

Section: Methodsmentioning

confidence: 99%

“…In the past decades, the types of polymers used in the synthesis of membranes for separation applications have attracted tremendous attention. The membrane separation technology is used in broad range of applications such as water and wastewater treatment, reverse osmosis pretreatment, and separation processes in many industries including food, dairy, pharmaceuticals, paper, textile, chemicals, and biochemical 1‐4 . Relatively low energy consumption, continuous separation under mild condition, ease of operation, and high‐quality of obtained permeate are the main advantages of the membrane technology.…”

Section: Introductionmentioning

confidence: 99%

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Novel blended poly(sulfide sulfone)/poly(ether sulfone) dense membranes for water treatment

Babanzadeh

Mehdipour‐Ataei

Khodami

2020

Polymers for Advanced Techs

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In this research, a novel aromatic poly(sulfide sulfone) (PPY) containing pyridine and sulfide groups is synthesized by polycondensation reactions of a new diol(diol‐PY) with bis(4‐fluorophenyl) sulfone. Also a poly(ether sulfone) (PBM) is prepared through reaction of 4,4′‐(1,3‐phenylenediisopropylidene) bisphenol(bisphenol M) with bis(4‐fluorophenyl) sulfone similarly. The chemical structure of diol‐PY and polymers is identified by spectroscopic techniques. PBM/PPY blending dense membranes with composition of 100/0, 75/25, and 50/50 wt% are developed via phase inversion induced method by solvent evaporation. The prepared dense membranes are specified by water contact angle, water absorption, scanning electron microscope (SEM), atomic force microscope (AFM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and tensile strength. Pure water flux, hydraulic water permeability, and salt permeability are applied to evaluate the process performance of the membrane. According to SEM and DSC results, good miscibility of two polymers is concluded. Thermal stability of PBM/PPY blend membranes enhance compared with PBM membrane. Water contact angle and water absorption evaluation indicate that the hydrophilicity of PBM membrane improve by incorporating of PPY in the casting polymer solution. The similar result is observed for pure water flux and hydraulic water permeability of the synthesized dense membranes.

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Water absorption (() %) = \frac{W_{w} - W_{d}}{W_{d}} \times 100,

where W w and W d are the wet and dry weights of the membrane samples, respectively 15 .…”

Section: Methodsmentioning

confidence: 99%

“…The concentration of salt in the receptor chamber was followed as a function of time by applying the conductivity meter. The salt permeability was counted using the Equation (4): 3

P_{S} t = - \frac{V_{R} * L}{2 A} \ln ([], 1 - \frac{2 C_{R}^{[t]}}{C_{D}^{([], 0)}}),

where

C_{R}^{[t]}

is the receptor concentration at time t ,

C_{D}^{[0]}

is the initial donor concentration, V is the donor or receptor volume (35 ml in this case), and A is the active membrane area (1.77 cm 2 ).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel blended poly(sulfide sulfone)/poly(ether sulfone) dense membranes for water treatment

Babanzadeh

Mehdipour‐Ataei

Khodami

2020

Polymers for Advanced Techs

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“…The DSC analysis was used to study and compare glass transition temperature ( T g ) of the samples. As shown in Figure 7 and Table 2, T g of all the samples were almost similar from 179.1–185.5°C that was derived from small changes in the slop of base‐line of DSC curve after elimination of thermal history 28 . The FAF‐DMWCNT nanocomposite showed slightly increased T g because of more interaction of modified MWCNT with polymer chains and consequently lower structural movement of polymeric chains.…”

Section: Resultsmentioning

confidence: 69%

“…Also, bands at 1504 and 1596 cm −1 were related to the C═C stretching aromatic units. The OH stretching and CH aromatic bands of the diol‐FAF appeared at 3426 and 3061 cm −1 , respectively 28 …”

Section: Resultsmentioning

confidence: 99%

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

Mehdipour‐Ataei

Babanzadeh

Khodami

2021

Polymers for Advanced Techs

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According to the clean water crisis, purification of water resources is so imperative. Reverse osmosis is the best method for the purification of wastewater. In this article, a new diol and resulting poly(keto ether sulfone) was synthesized and characterized successively. Innovative nanocomposites were prepared with the novel poly(keto ether sulfone) and various nanomaterials including clay, graphene oxide, multi‐walled carbon nanotube, and sepiolite. Polydopamine (PDA) was used to modify the hydrophilic nature of the nanoparticles surface. Thin‐film nanocomposites as reverse osmosis membranes were made by depositing of polyamide on the mentioned nanocomposites and investigated for removing metal ions like Cu (II), Co (II), Cr (II), Hg (II), Ni (II), Zn (II), and Pb (II) from water. The efficiency of membranes constructing from pristine poly(keto ether sulfone) and different nanocomposites as supporting layer of thin‐film nanocomposite were compared. The prepared membrane based on PDA‐modified MWCNT showed the best performance results including pure water flux of 215 L.m−2.h−1 and rejection of 98% for Cr (II).

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Advanced nanocomposite ion exchange materials for water purification

Yadav

2021

Handbook of Nanomaterials for Wastewater Treatment

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Preparation, characterization, and performance evaluation of sepiolite-based nanocomposite membrane for desalination

Cited by 9 publications

References 41 publications

Novel blended poly(sulfide sulfone)/poly(ether sulfone) dense membranes for water treatment

Novel blended poly(sulfide sulfone)/poly(ether sulfone) dense membranes for water treatment

Thin film nanocomposites from a novel poly(keto ether sulfone) to remove metal ions from wastewater

Advanced nanocomposite ion exchange materials for water purification

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