A novel thin film composite forward osmosis membrane prepared from PSf–TiO2 nanocomposite substrate for water desalination

Emadzadeh, Daryoush; Lau, Woei Jye; Matsuura, Takeshi; Rahbari‐Sisakht, Masoud; Ismail, Ahmad Fauzi

doi:10.1016/j.cej.2013.09.081

Cited by 414 publications

(215 citation statements)

References 48 publications

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“…Research has also been carried out on the improvement of support layers as a means for overcoming ICP through reduction of the support layer's tortuosity and increasing porosity [138,158,159]. For example, addition of electro-spun polyvinyl alcohol nanofibres into PSf support layer resulted in improved support layer features that allowed an enhancement in flux by up to 8 times compared to commercial FO membranes [52].…”

Section: Assessment Of Membrane Performancementioning

confidence: 97%

“…For example, synthesizing support layers using novel material such as incorporation of titanium dioxide nanoparticles [138], carbon nanotubes [148] or zeolites [149] into themembrane have been shown to improve support layer structural features. A bio-inspired hydrophilic polymer (polydopamine or PDA) has been used by Arena et al to coat and chemically modify the support layers of two commercially available TFC RO membranes to improve their hydrophilicity.…”

Section: Membrane Advancementmentioning

confidence: 99%

“…PSf-titanium dioxide(TiO 2 ) nanocomposite substrate, PA active layer IP [138] 2014 Tri-bore hollow fiber TFC Matrimid Ò 5218 polymer substrate, PA active layer Dry-jet wet spinning and IP [139] both layers. The comparatively dense outer skin of the fibers formed via phase inversion considerably reduced the impact of CP occurring in the porous sublayer.…”

Section: Membrane Advancementmentioning

confidence: 99%

See 2 more Smart Citations

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

395

203

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Section: Assessment Of Membrane Performancementioning

confidence: 97%

Section: Membrane Advancementmentioning

confidence: 99%

Section: Membrane Advancementmentioning

confidence: 99%

See 1 more Smart Citation

Recent advancements in forward osmosis desalination: A review

Akther¹,

Sodiq²,

Giwa³

et al. 2015

Chemical Engineering Journal

395

203

View full text Add to dashboard Cite

“…hydrophilic-hydrophobic balance of membranes. 30,31 To date, a variety of inorganic nanoparticles, such as SiO 2 , ZnO, Al 2 O 3 , Fe 3 O 4 , and TiO 2 , have been introduced into polymer matrix to afford the polymer/inorganic nanoparticles composite materials. [32][33][34] Among these inorganic substances, TiO 2 shows good stability, resisting and decomposing bacteria, hydrophilicity, and UV resistance.…”

Section: Introductionmentioning

confidence: 99%

One pot blending of biopolymer‐TiO₂ composite membranes with enhanced mechanical strength

Huang

Liu

et al. 2015

J of Applied Polymer Sci

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A biopolymer-TiO 2 composite membrane was prepared by blending of N-[(2-hydroxy-3-trimethylammonium) propyl] chloride chitosan and cellulose acetate with nano-TiO 2 particles as the introduced inorganic components. It was verified that the amino groups (ANH 2 ) of chitosan (CTS) were partly grafted by stronger hydrophilic group ACH 2 CH OH ð ÞCH 2 N CH 3 ð Þ 1 3 according to the 1 H-nuclear magnetic resonance spectra of N-[(2-hydroxy-3-trimethylammonium) propyl] chloride chitosan and attenuated total reflectance Fourier transform infrared spectroscopy. The structure, microcosmic morphology, water flux, swelling properties, and thermal stability of the composite membranes were characterized. With the mass ratio of cellulose acetate to CTS being 50 wt %, the mole ratio of CTS to glycidyl trimethylammonium chloride being 1 : 1, and drying temperature being 608C in 70% acetic acid, the formed biopolymer-TiO 2 composite membranes exhibited enhanced mechanical strength (84.29 MPa), lower swelling degree (101.36%), and improved antibacterial activity against Gram-negative Escherichia coli (Rosetta and DH5a) and Gram-positive Bacillus subtilis. The existence of nano-TiO 2 particles and the introduction of stronger cationic group synergistically improved the antibacterial properties of the biopolymer-TiO 2 composite membranes.

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“…[39,52,53] Physical modifications are usually carried out by adding hydrophilic materials, such as TiO2, SiO2, zeolite nanoparticles, etc. into either membrane substrates [54] or membrane surfaces [55,56] to improve the membrane performance. However, the added materials [57][58][59][60] or membrane polymer prior to the membrane fabrication [61][62][63][64][65] via chemical reactions between materials to enhance membrane hydrophilicity.…”

mentioning

confidence: 99%

Progress in Forward Osmosis Membrane Separation Process

Chen¹,

Xu²,

Ge³

2017

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Forward osmosis (FO) has been extensively investigated and demonstrated its advantages in a range of FO applications over the past decade. However, challenges still remain in terms of the lack of both efficient FO membranes and appropriate draw solutes for practical FO applications. To promote the advancement of FO technology, considerable efforts have been made in exploring novel FO membranes and draw solutes in recent years. This paper will provide a short review on the progress of both FO membranes and draw solutes. First of all, a brief overview on FO principle is given. Then the progress in FO technology related to FO membrane and draw solute is presented with specific examples. Finally, challenges and future directions of FO technology in exploring efficient FO membranes and promising draw solutes are also highlighted. This article may provide new insights into the future development of FO technology and promote practical FO applications.Keywords forward osmosis, draw solution, forward osmosis membrane, forward osmosis application IntroductionFreshwater shortage has been becoming a more and more severe problem globally. [1][2][3][4] To mitigate this problem, various technologies for clean water production have been explored worldwide recently. [5][6][7][8][9] Membrane technology has shown a great potential in water treatment in view of the advantages of no phase change, strong adaptability, relatively simple operation and low cost. [5,[10][11][12] A range of pressure-driven membrane processes, such as microfiltration (MF), [13][14][15][16] ultrafiltration (UF), [13,17,18] nanofiltration (NF), [19][20][21] and reverse osmosis (RO) [22][23][24][25][26] have been extensively used for clean water production through either wastewater reuse or brackish water/ seawater desalination. However, some issues, such as severe membrane fouling, low water recovery rate, intensive-energy consumption and relatively low quality of product water, occur frequently during these processes. [10,13,17,23,27] FO has been recognized as a promising membrane process because of the following characteristics: (1) no requirement of hydraulic pressure; (2) a relatively high water recovery rate; (3) low membrane fouling propensity due to the absence of hydraulic pressure; (4) environmental friendliness. Given these merits, FO technology has been applied to a wide range of fields, such as seawater/brackish water desalination, [4,24,28] wastewater treatment, [8,[29][30][31] and many other areas. [32][33][34][35][36] Although FO exhibits a great potential in alleviating the issues caused by freshwater shortage, challenges, such as relatively low water permeability, high reverse solute diffusion, severe concentration polarization (CP), and membrane fouling, are still present in FO applications. [37][38][39] To eliminate these problems, exploration of appropriate semi-permeable FO membrane and draw solute is urgently needed. Great efforts have been made in the development of FO technology in recent years, and a wide range of powerful FO membra...

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A novel thin film composite forward osmosis membrane prepared from PSf–TiO2 nanocomposite substrate for water desalination

Cited by 414 publications

References 48 publications

Recent advancements in forward osmosis desalination: A review

Recent advancements in forward osmosis desalination: A review

One pot blending of biopolymer‐TiO₂ composite membranes with enhanced mechanical strength

Progress in Forward Osmosis Membrane Separation Process

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A novel thin film composite forward osmosis membrane prepared from PSf–TiO2 nanocomposite substrate for water desalination

Cited by 414 publications

References 48 publications

Recent advancements in forward osmosis desalination: A review

Recent advancements in forward osmosis desalination: A review

One pot blending of biopolymer‐TiO2 composite membranes with enhanced mechanical strength

Progress in Forward Osmosis Membrane Separation Process

Contact Info

Product

Resources

About

One pot blending of biopolymer‐TiO₂ composite membranes with enhanced mechanical strength