Water desalination by forward (direct) osmosis phenomenon: A comprehensive review

Qasim, Muhammad; Darwish, Naif A.; Sarp, Sarper; Hilal, Nidal

doi:10.1016/j.desal.2015.07.016

Cited by 239 publications

(104 citation statements)

References 210 publications

(393 reference statements)

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“…Thus, in order to enhance the membrane performance in FO applications, it is essential to fabricate membrane with an ideal support layer which could reduce the internal concentration polarization phenomenon in terms of porosity, tortuosity, thickness and chemical stability . Based on the existing literature, the most commonly used method for the porous support layer is a phase inversion process . But the porosity of conventional phase inverted membranes is 10–20% less than electrospun nano‐fibrous membranes .…”

Section: Introductionmentioning

confidence: 99%

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Zhang

Huang

Meng

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Forward osmosis (FO) membranes need to be improved since water fluxes of commercial FO membranes are low. Using electrospun polysulfone (PSf)/titanium dioxide (TiO2) nanocomposite fibers as substrates could be a good way to make high‐quality FO membranes. The effect of nano‐TiO2 on polyamide thin film nanocomposite (TFN) FO membrane was investigated. The nanocomposite substrates were fabricated by electrospinning. Hydrophilicity, porosity, pore size and mechanical properties of the membranes were determined. RESULTS Results indicated that hydrophilicity, porosity and pore size of the substrates were increased upon addition of TiO2. Water flux of TFN membrane prepared using PSf substrate embedded with 0.25 wt% TiO2 nanoparticles (denoted as TFN 0.25) was improved by 19% compared with controlled TFC membrane. Further increase in TiO2 nanoparticles loading to 0.5 and 0.75 wt% had higher water flux, but their FO performances were compromised by a significant increase in reverse solute flux and the active layer is more vulnerable. FO performance evaluation indicated that TFN 0.25 membrane showed the most promising results, with high water flux and low reverse solute flux. CONCLUSION This study demonstrated that PSf/TiO2 solution can be electrospun as substrate to make TFN membranes with higher water flux than commercial membranes and electrospun membranes without nano‐TiO2. © 2017 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Zhang

Huang

Meng

et al. 2017

J of Chemical Tech & Biotech

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“…Cellulose acetate is the commercially most important cellulose ester due to its wide potential applications in fibers, plastics, films, membranes, and coatings (Bifari et al 2016;Dias and de Pinho 1999;Hou et al 2012;Kochkodan and Hilal 2015;Lu et al 2015a;Qasim et al 2015;Shibata 2004). Moreover, diverse cellulose acetate nanocomposites have potential applications as packaging, separation media, biomedical technologies and sensing (Bifari et al 2016;Konwarh et al 2013;Shibata 2004).…”

Section: Esterified Cellulose Containing Aliphatic Moietiesmentioning

confidence: 99%

Functional nanomaterials through esterification of cellulose: a review of chemistry and application

et al. 2018

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As the most abundant biopolymer in nature, cellulose has become a fascinating building block for the design of functional nanomaterials. Owing to the presence of numerous hydroxyl groups, cellulose provides a unique platform for the preparation of new materials via versatile chemical modifications. This critical review aims to present the advances about nanomaterials based on cellulose derivatives with the focus on cellulose esters within the last two decades, including the chemistry and application of these nanostructured materials. This review starts with the introduction on first fundamental aspects about diverse esterification techniques used up to now to modify cellulose. The in situ esterification for the isolation of nanocelluloses and diverse post esterification methods of nanocelluloses for the surface functionalization were highlighted in the following description. Various esterification strategies and further nanostructure constructions have been developed aiming to confer specific properties to cellulose esters, extending therefore their feasibility for highly sophisticated applications, which were summarized with respect to the categories of the introduced ester moieties. Thus, this review assembles and emphasizes the state-of-art knowledge of functional nanomaterials derived from diverse esterified cellulose compounds.

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“…2 Contrary to RO process, FO uses osmotic gradient pressure as driving force resulting in low membrane fouling and energy consumption. [5][6][7][8][9] Cellulose acetate (CA) and CTA are the most widely used FO material for their good resistance to chlorine and hydrophilicity. 4 They are FO membrane, draw solute, ICP, reverse solute diffusion and membrane fouling.…”

Section: Introductionmentioning

confidence: 99%

Interforce initiated by magnetic nanoparticles for reducing internal concentration polarization in CTA forward osmosis membrane

Chi

Zhang

Guo

et al. 2017

J of Applied Polymer Sci

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The interforce between the magnetic composite forward osmosis (FO) membranes and the magnetic draw solution was proposed to reduce the internal concentration polarization (ICP) of FO process, and realized the synergetic permeability improvement of resultant FO membranes. The key factor was the successful fabrication of the Fe 3 O 4 magnetic nanoparticles (MNPs) with small-size and narrow distribution via co-precipitation method. The cellulose triacetate (CTA) magnetic composite FO membranes were fabricated using Fe 3 O 4 as additive via in situ interfacial polymerization, and named CTA-Fe 3 O 4 . Dynamic light scattering (DLS) and zeta results showed that the coated sodium oleate on the MNPs explained their reducing aggregation and the stability of various pHs. The MNPs' surface segregation during demixing process resulted in the improvement of hydrophilicity, Fe content and roughness of resultant CTA-Fe 3 O 4 composite FO membranes. Furthermore, the in situ interfacial polymerization resulted in the formation of the polyamide selective layer, and the CTA-Fe 3 O 4 membrane's N content was 11.02% to 11.12%. The permeability properties (FO and pressure retarded osmosis modules) were characterized using 1.0M NaCl and 100 mg/L Fe 3 O 4 as draw solutions, respectively. The results indicated that the higher concentration of MNPs supplied more interforce and better FO permeability properties. V C 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44852.

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Water desalination by forward (direct) osmosis phenomenon: A comprehensive review

Cited by 239 publications

References 210 publications

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Functional nanomaterials through esterification of cellulose: a review of chemistry and application

Interforce initiated by magnetic nanoparticles for reducing internal concentration polarization in CTA forward osmosis membrane

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Water desalination by forward (direct) osmosis phenomenon: A comprehensive review

Cited by 239 publications

References 210 publications

Electrospun polysulfone (PSf)/titanium dioxide (TiO2) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Electrospun polysulfone (PSf)/titanium dioxide (TiO2) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Functional nanomaterials through esterification of cellulose: a review of chemistry and application

Interforce initiated by magnetic nanoparticles for reducing internal concentration polarization in CTA forward osmosis membrane

Contact Info

Product

Resources

About

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes

Electrospun polysulfone (PSf)/titanium dioxide (TiO₂) nanocomposite fibers as substrates to prepare thin film forward osmosis membranes