Tight ultrafiltration membrane: Preparation and characterization of thermally resistant carboxylated cardo poly (arylene ether ketone)s (PAEK-COOH) tight ultrafiltration membrane for dye removal

Liu, Chunli; Mao, Hongchao; Zheng, Jifu; Zhang, Suobo

doi:10.1016/j.memsci.2017.02.005

Cited by 115 publications

(25 citation statements)

References 38 publications

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“…The conventional and frequently used CR and MB were used as the model dyes, each with a feed solution concentration of 500 mg L −1 . The concentrations of CR and MB were determined at λ = 488 and 664 nm, respectively, using an ultraviolet‐visible spectrophotometer (TU‐1901, Purkinje General Instrument Co. Ltd) …”

Section: Methodsmentioning

confidence: 99%

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Dye removal using hydrophobic polyvinylidene fluoride hollow fibre composite membrane by vacuum membrane distillation

Feng

Shi

et al. 2019

Coloration Technology

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Hydrophobic polyvinylidene fluoride (PVDF) hollow fibre composite membranes were prepared by the dilute solution coating process to build a special surface structure that was similar to the dual micro‐nano structure on the lotus leaf. Poly(vinylidene fluoride‐co‐hexafluoropropene) was chosen as the hydrophobic polymer candidate in dilute solution. Membrane morphology and surface hydrophobicity were evaluated by scanning electron microscopy and dynamic water contact angle measurement. The prepared PVDF hollow fibre membranes were employed to separate dyes (Congo Red and Methylene Blue) from water by vacuum membrane distillation. The effects of operational conditions (feed temperature, vacuum pressure and feed flow rate) on the vacuum membrane distillation performance of different PVDF membranes were investigated. The results indicated that the water contact angle values of PVDF composite membrane surfaces improved from 93.6° to 130.8°, which was mainly attributed to the formation of micro‐nano rods. This structure was similar to the dual micro‐nano structure on the lotus leaf. Under test feed temperature, vacuum pressure and feed flow rate conditions, the dye rejection rate of Congo Red and Methylene Blue by the hydrophobic PVDF hollow fibre membrane remained above 99.5% and 99%, which was higher than that of the pristine PVDF membrane (99% and 98%, respectively). In addition, the hydrophobic PVDF hollow fibre composite membrane showed higher permeation flux under different conditions compared with the pristine PVDF membrane, which was attributed to membrane surface hydrophobicity and the electrostatic interactions between dyes and the PVDF membrane surface.

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Section: Methodsmentioning

confidence: 99%

“…The concentrations of CR and MB were determined at λ = 488 and 664 nm, respectively, using an ultraviolet-visible spectrophotometer (TU-1901, Purkinje General Instrument Co. Ltd). 29,30 Dye rejection (R) and membrane permeation water flux (J w ) were calculated using Equations 4 and 5.…”

Section: Vmd Experimentsmentioning

confidence: 99%

Dye removal using hydrophobic polyvinylidene fluoride hollow fibre composite membrane by vacuum membrane distillation

Feng

Shi

et al. 2019

Coloration Technology

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“…In membrane technology, the most important point to be considered is control over the structure and properties of membranes . Because membrane production is a very sensitive process, it depends on the operating conditions, such as the thermodynamic and kinetic factors of phase inversion .…”

Section: Introductionmentioning

confidence: 99%

“…[23][24][25][26] In membrane technology, the most important point to be considered is control over the structure and properties of membranes. [27][28][29] Because membrane production is a very sensitive process, it depends on the operating conditions, such as the thermodynamic and kinetic factors of phase inversion. 30,31 Additives have been widely used to control membrane morphology and tune the pore size, as they affect the phase-inversion process.…”

mentioning

confidence: 99%

P (VDF‐co‐CTFE)‐g‐P2VP amphiphilic graft copolymers: Synthesis, structure, and permeation properties

Park

Kim

Ryu

et al. 2019

Polymers for Advanced Techs

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A series of amphiphilic graft copolymers of poly (vinylidene fluoride‐co‐chlorotrifluoroethylene)‐g‐poly(2‐vinyl pyridine), P (VDF‐co‐CTFE)‐g‐P2VP, with different degrees of P2VP grafting (from 26.3 to 45.6 wt%) was synthesized via one‐pot atom transfer radical polymerization (ATRP). The amphiphilic properties of P (VDF‐co‐CTFE)‐g‐P2VP graft copolymers allowed itself to self‐assemble into nanoscale structures. P (VDF‐co‐CTFE)‐g‐P2VP graft copolymers were introduced into neat P (VDF‐co‐CTFE) as additives to form blending membranes. When two different solvents, N‐methyl‐2‐pyrrolidone (NMP) and dimethylformamide (DMF), were used, specific organized crystalline structures were observed only in the NMP systems. P (VDF‐co‐CTFE)‐g‐P2VP played a pivotal role in controlling the morphology and pore structure of membranes. The water flux of the membranes increased from 57.2 to 310.1 L m−2 h−1 bar−1 with an increase in the PVDF‐co‐CTFE‐g‐P2VP loading (from 0 to 30 wt%) due to increased porosity and hydrophilicity. The flux recovery ratio (FRR) increased from 67.03% to 87.18%, and the irreversible fouling (Rir) decreased from 32.97% to 12.82%. Moreover, the pure gas permeance of the membranes with respect to N2 was as high as 6.2 × 104 GPU (1 GPU = 10–6 cm3[STP]/[s cm2 cmHg]), indicating their possible use as a porous polymer support for gas separation applications.

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“…Recently, membranes made from ceramic materials have been receiving a high attention due their chemical and thermal stability (Kusumocahyo, 2016;Huang, 2014;Xu, 2016), however the price of ceramic membranes is much more expensive compared to the polymer membranes. There are many studies on the use of other polymer materials with the aim to improve the membrane performance (Liu, 2017;Pulido, 2018) or to reduce the cost of the membranes (Ahmad, 2018). The use of cheap membrane material is still important in the developing countries like Indonesia, since most polymer materials to produce the membranes are not produced in Indonesia and have to be imported.…”

Section: Introductionmentioning

confidence: 99%

Development of Ultrafiltration Membrane from Polyethylene Terephthalate (Pet) Bottle Waste

Kusumadewi

Kusumocahyo

2019

iconiet

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Polyethylene Terephthalate (PET) bottle is used as beverage packaging, which is very convenient as one time use packaging. However, the huge amount of PET bottle waste has been becoming a serious problem for the environment. The utilization of PET bottle waste is very important to reduce the environmental problem. In this work, PET bottle waste was used a raw material to develop an ultrafiltration (UF) membrane. The membrane was prepared by using a phase inversion technique. The effect of the type of solvent, additive, and non-solvent on the microstructure and ultrafiltration performance of the membrane was studied. Different type of solvent, phenol, m-cresol, and DMSO were used to dissolve PET bottle as the source of membrane polymer. Two different additives, Polyethylene Glycol (PEG) and Polyvinyl Pyrrolidone (PVP) were used. Membrane 3 with the composition of PET, phenol as solvent, and PEG as additive was prepared successfully. The variation of aqueous alcohol solutions as non-solvent resulted in different microstructures of the membranes as shown by the scanning electron microscopy (SEM). The permeation experiment result using pure water as the feed showed that membrane 3 using aqueous butanol as non-solvent (membrane 3-ButOH) exhibited the highest permeate flux compared to that of membrane 3 using aqueous propanol (membrane 3-PrOH) or ethanol as non-solvent (membrane 3-EtOH). The ultrafiltration experiment was carried out using a feed solution of water containing polyethylene glycol (PEG) 20,000. The membrane 3-EtOH showed the lowest permeate flux of 3.24 kg/m h, but the highest rejection of PEG 20,000 of 65.87%. The membrane 3-PrOH had a permeate flux of 11.57 kg/m h and a rejection of 64.73%. Whereas the membrane 3-ButOH showed the highest permeate flux of 27.78 kg/m h, but the lowest rejection 16.93%. This result was obtained due to the different membrane microstructures which were strongly affected by the type of non-solvent.

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Tight ultrafiltration membrane: Preparation and characterization of thermally resistant carboxylated cardo poly (arylene ether ketone)s (PAEK-COOH) tight ultrafiltration membrane for dye removal

Cited by 115 publications

References 38 publications

Dye removal using hydrophobic polyvinylidene fluoride hollow fibre composite membrane by vacuum membrane distillation

Dye removal using hydrophobic polyvinylidene fluoride hollow fibre composite membrane by vacuum membrane distillation

P (VDF‐co‐CTFE)‐g‐P2VP amphiphilic graft copolymers: Synthesis, structure, and permeation properties

Development of Ultrafiltration Membrane from Polyethylene Terephthalate (Pet) Bottle Waste

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