Simple method for preparing thin film composite polyamide nanofiltration membrane based on hydrophobic polyvinylidene fluoride support membrane

Lee, Jusung; Seo, Jin Ah; Lee, Hyun Ho; Jeong, Sung Kuk; Park, Hyun Sic; Min, Byoung Ryul

doi:10.1016/j.tsf.2017.01.031

Cited by 22 publications

(7 citation statements)

References 45 publications

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“…Although many polymeric materials such as polyacrylonitrile (PAN) [32], PP [33], polyvinylidene fluoride (PVDF) [33,34], PTFE [35], sulfonated polyphenylsulfone (sPPSU) [35], poly(etherimide) (PEI) [36], polyfurane (PF) [37], polyether-polyfurane [37], polyvinylamine [37], polyimide (PI) [38], and polyketone (PK) [39] have been utilized for substrate fabrication over the years and promising lab-scale results were obtained using TFC membranes made of them, PSf still remains a mainstay in the commercial TFC membranes to this day. It is mainly due to the widespread use of PSf as an UF membrane.…”

Section: Substrates Made Of Single Polymermentioning

confidence: 99%

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Lau

Lai

et al. 2019

Journal of Industrial and Engineering Chemistry

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Thin film composite (TFC) membranes are state-of-the-art membranes with superior permeability and selectivity and are widely used in various membrane-based processes for desalination, wastewater treatment and other separation applications. These TFC membranes are generally made out of a thin polyamide selective layer that synthesized through interfacial polymerization on the top surface of a microporous substrate. The first commercialized TFC membrane was reported in the 1970s for reverse osmosis (RO) process of seawater desalination. It was later expanded to nanofiltration (NF) process for colour and divalent salts removal in the 1980s. In the early 2000s, the potential use of TFC membrane was explored in the osmoticallydriven process including forward osmosis (FO) process and pressure retarded osmosis (PRO) process. Despite the exceptional performance improvement of TFC membrane was achieved, the existing TFC membranes still suffer from several bottlenecks in terms of fouling resistance, productivity as well as durability upon compaction and chemical attack and have the limited overall separation efficiency. Research in the past has focused mainly on the fabrication of polyamide layer that determines the rejection rate and antifouling resistance of the TFC membrane. This strong research interest on the polyamide layer development can be reflected by the large number of relevant articles published in open literature since 1970s (> 3,000 articles). Nevertheless, over the past 15 years, we have seen growing interest among membrane scientists to study the roles of polymeric substrate and perform in-depth analyses on how the changes in the substrate physicochemical properties could affect polyamide layer structure and thus membrane performance. Recent advancements in the new polymeric materials development and nanomaterials synthesis have opened a lot of opportunities for new generation substrate development. Compared to the pressure-driven membrane processes, the substrate of TFC membranes plays a more significant role in osmotically-driven process as the occurrence of internal concentration polarization (ICP) (within the substrate) to reduce the available driving force for osmosis and may be regarded as an artificial source of inefficiency in FO/PRO process. Considering the importance of TFC membranes for industrial separation process, this review will give a high-quality state-of-the-art account of the subject matter by emphasizing the substrates made by different techniques (e.g., Loeb-Sourirajan phase inversion method, doubleblade casting, electrospinning, and surface modification technique) and various materials (e.g., new polymeric materials, polymer-polymer composite, polymer-inorganic nanocomposite, etc.). More specifically, the article will review the roles of the developed substrates on the chemical and physical properties of polyamide selective layer and further their influences on the TFC membrane performances for both pressure-driven (NF/RO) and osmotically-driven (FO/PRO) processes, aiming to stimulat...

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Section: Substrates Made Of Single Polymermentioning

confidence: 99%

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Lau

Lai

et al. 2019

Journal of Industrial and Engineering Chemistry

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“…Polyvinylidene fluoride (PVDF) membranes with finger‐like pore structures have been extensively applied in water treatment industry for the good permeability and outstanding antioxidative ability . These membranes seem to have a great prospect to replace PSF membranes as the substrates of TFC membranes.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic SiO₂ nanoparticle‐induced polyvinylidene fluoride crystal phase inversion to enhance permeability of thin film composite membrane

Sun

Liu²,

et al. 2019

J of Applied Polymer Sci

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Thin film composite (TFC) membrane can get rid of small molecular contaminants and salts with a very high efficiency, thus exhibiting promising potential for addressing the emerging problem of a clean water shortage. In this work, a new type of TFC membrane was prepared by interfacial polymerization of two monomers (MPD and TMC) on surface of SiO 2 /polyvinylidene fluoride (PVDF) substrate. The maximum flux of 3.16 L m −2 h −1 Bar −1 was achieved for the optimized hydrophobic SiO 2 nanoparticles well dispersed in PVDF substrate, which is 2.6 times higher than that of 1.21 L m −2 h −1 Bar −1 for the commercial cellulose triacetate reverse osmosis membrane. The improved performance of TFC membrane could be attributed to the higher compaction resistance of SiO 2 /PVDF substrate. Further analysis revealed that PVDF crystal phase inversion induced by superhydrophobic SiO 2 nanoparticles obviously enhanced the intramolecular and intermolecular hydrogen bonds between PVDF polymer molecules. Additionally, the narrower finger-like pore size and thicker pore wall of SiO 2 /PVDF substrate also played significant roles in enhancing the compaction resistance of PVDF membrane. This work also provides a proof-of-concept demonstration of high permeability substrates for effective flux enhancement of TFC membranes.

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“…The low permeated flux is associated with the slightly hydrophobic nature of the NF2 membranes and the low salts rejection is attributed to the low surface density charge, as reveals the ZP. For membrane NF4, it was observed an increase on salt rejection when the displacement speed decreased and there was a slight decrease in the permeated flux (performance compensation) …”

Section: Resultsmentioning

confidence: 99%

Evaluation of a modified spray‐applied interfacial polymerization method for preparation of nanofiltration membranes

Morales‐Cuevas

Pérez‐Sicairos

Lin

et al. 2019

J of Applied Polymer Sci

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Nanofiltration (NF) membranes were fabricated by using piperazine (PIP) and trimesoyl chloride (TMC) by conventional and spray‐applied interfacial polymerization methods, studying the effect of the application method for both phases, the number of applied layers, and the displacement speed for the spray application. A polysulfone ultrafiltration membrane was used as support. NF membranes were characterized by different spectroscopic, microscopic, and physicochemical techniques. Rejection capacity was evaluated for sodium chloride (NaCl), sodium sulfate (Na2SO4), and magnesium sulfate (MgSO4) salts; the decreasing rejection order was Na2SO4 > MgSO4 > NaCl for each NF membrane. NF membrane prepared with one layer of the sprayed out TMC solution and conventional application of PIP solution exhibited the highest salt rejection (99% for 1000 ppm Na2SO4) and a permeated flux of 10.28 L m−2 h−1 at 0.55 MPa. The modified method is a facile‐reproducible preparation methodology that reduces the consumption of time, effort, and reagents leading to a scalable manufacturing process for separation technology. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48129.

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Simple method for preparing thin film composite polyamide nanofiltration membrane based on hydrophobic polyvinylidene fluoride support membrane

Cited by 22 publications

References 45 publications

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Hydrophobic SiO₂ nanoparticle‐induced polyvinylidene fluoride crystal phase inversion to enhance permeability of thin film composite membrane

Evaluation of a modified spray‐applied interfacial polymerization method for preparation of nanofiltration membranes

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Simple method for preparing thin film composite polyamide nanofiltration membrane based on hydrophobic polyvinylidene fluoride support membrane

Cited by 22 publications

References 45 publications

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Development of microporous substrates of polyamide thin film composite membranes for pressure-driven and osmotically-driven membrane processes: A review

Hydrophobic SiO2 nanoparticle‐induced polyvinylidene fluoride crystal phase inversion to enhance permeability of thin film composite membrane

Evaluation of a modified spray‐applied interfacial polymerization method for preparation of nanofiltration membranes

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Hydrophobic SiO₂ nanoparticle‐induced polyvinylidene fluoride crystal phase inversion to enhance permeability of thin film composite membrane