Preparation and properties of polyamide/titania composite nanofiltration membrane by interfacial polymerization

Wang, Qiao; Zhang, Guangshan; Li, Zhan-shuang; Deng, Sheng; Chen, Han; Wang, Peng

doi:10.1016/j.desal.2014.08.001

Cited by 42 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table summarizes the separation performance of the nanomaterial‐incorporated NF membranes prepared in this study and reported in previous literature . As shown in Table , nanomaterials such as TiO 2 , SiO 2 , graphene oxide, and carbon nanotubes have been successfully incorporated into functional layers of composite NF membranes.…”

Section: Resultsmentioning

confidence: 91%

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Shi

et al. 2017

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyamide thin‐film composite nanofiltration (NF) membranes were prepared via the interfacial polymerization (IP) process of piperazine and 1,3,5‐trimesoyl chloride on the polysulfone/nonwoven fabric ultrafiltration membrane surface. Carboxylated multiwalled carbon nanotubes (cMWNTs) were incorporated into the aqueous phase during the IP process to improve the membrane performance. The composition and morphology of the membrane surface were examined by means of attenuated total reflectance–Fourier transform infrared spectroscopy, scanning electron microscopy–energy dispersive spectrometry, and atomic force microscopy. The effects of the cMWNTs content on the membrane hydrophilicity, separation performance, and antifouling properties were characterized through water contact angle and crossflow filtration measurements. The experimental results show that membrane surface hydrophilicity, water permeability, salt rejection (R), and antifouling properties all improved. In particular, when the cMWNTs content was 50 ppm, the magnesium sulfate R of the composite NF membrane reached a maximum value of 98.5%; meanwhile, the membrane obtained an obviously enhanced water flux (62.1 L m−2 h−1 at 0.7 MPa), which was two times larger than that of the original NF membrane. The modified NF membranes showed enhanced antifouling properties; this was mainly attributed to changes in the microstructures and surface features of the polyamide layer after the addition of the cMWNTs. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45268.

show abstract

Section: Resultsmentioning

confidence: 91%

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Shi

et al. 2017

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…A comparative evaluation of the performance of few of the membranes prepared in this study with other NF membranes reported in the literature is presented in Table 5. NF Membranes where different NPs are incorporated in the rejection layer (polyamide) of the membranes (unlike present work where nanoparticles are incorporated in the substrate UF layer) and some of the commercial NF membranes have been chosen for comparison 54–58 . The rejection layer of all these membranes is made of polypiperazine trimesamide.…”

Section: Comparative Evaluation Of the Performance Of Nf Membranesmentioning

confidence: 99%

“…NF Membranes where different NPs are incorporated in the rejection layer (polyamide) of the membranes (unlike present work where nanoparticles are incorporated in the substrate UF layer) and some of the commercial NF membranes have been chosen for comparison. [54][55][56][57][58] The rejection layer of all these membranes is made of polypiperazine trimesamide. It is observed from the table that the selected membranes, that is, NF1-II, NF2-I and NF3-I are quite competent and sometimes better than the catalogued membranes from the viewpoint of their flux and rejection behavior.…”

Section: Comparative Evaluation Of the Performance Of Nf Membranesmentioning

confidence: 99%

Nanoparticles modified Polyacrylonitrile/Polyacrylonitrile – Polyvinylidenefluoride blends as substrate of high flux anti‐fouling nanofiltration membranes

Polisetti

Ray

2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

Thin‐film composite nanofiltration membranes were prepared by interfacial polymerization reaction of piperazine and trimesoylchloride on virgin and nanoparticles (SiO2/TiO2) modified Polyacrylonitrile/70:30 and 30:70 Polyacrylonitrile – Polyvinylidenefluoride blend ultrafiltration substrates. The membranes were characterized for surface hydrophilicity and potential, surface and cross‐sectional morphology and equilibrium water content. Pure water permeability and differential rejection of multi (MgSO4) and monovalent salts (NaCl) of the membranes were studied. Nanofiltration (NF) membranes prepared on nanoparticle modified UF substrates exhibit higher flux than the membranes prepared on virgin UF substrates. NF membranes prepared on TiO2 modified substrates are exhibiting higher flux than the other membranes. Membrane prepared on TiO2 modified 70:30 blend substrate exhibits the highest rejection ratio (4.63) of divalent to monovalent salts. Nanofiltration membranes prepared on nanoparticle modified substrates are displaying comparatively higher flux recovery ratio (FRR) and lower total fouling ratio (TFR) values than the NF membranes prepared on virgin ultrafiltration substrates.

show abstract

“…The electrons move from valence band to conduction band to create photoelectrons (e -) and positive holes (h + ), which react with oxygen and water to produce O 2 ⋅and -HO ⋅ free radicals. These free radicals could breakdown BPA into CO 2 and H 2 O [44].…”

Section: 4mentioning

confidence: 99%

Bisphenol A Removal through Low-Cost Kaolin-Based Ag@TiO₂ Photocatalytic Hollow Fiber Membrane from the Liquid Media under Visible Light Irradiation

Shareef

Waqas

2020

Journal of Nanomaterials

View full text Add to dashboard Cite

Removal of bisphenol A (BPA) from water has presented a major challenge for the water industry. In this work, we report the BPA separation properties of truly low-cost kaolin-based visible light-activated photocatalytic hollow fiber membranes. The ceramic hollow fiber support was successfully fabricated by phase inversion and sintering method, whereas Ag@TiO2 photocatalyst was prepared by liquid impregnation method. Different factors that affected the BPA removal were thoroughly investigated, including Ag loading in TiO2 catalyst and immersion time during dip coating method. A reference BPA (10 mgl-1) was used to check the photocatalytic performance of Ag@TiO2 photocatalysts and prepared membranes. Comprehensive characterization including X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX/S), Brunner-Emmer-Teller (BET), and UV-Vis spectroscopy revealed altered morphological and physicochemical properties of the photocatalytic membrane. UV-Vis results exhibited that the extended absorption edge of Ag@TiO2 photocatalyst was observed into the visible region that led to its maximum BPA removal of 93.22% within 180 min under visible light irradiation. The FESEM images of the prepared membranes evinced a significant change in the structural morphologies, and UV-Vis showed the absorption edge in the visible region owing to the coating of the Ag@TiO2 photocatalyst on the surface of the membrane. The resultant membrane showed a significant photocatalytic performance in the degradation of BPA (90.51% within 180 min) in an aqueous solution under visible light irradiation. At inference, the prepared membrane can be considered a promising candidate for efficient removal of BPA.

show abstract

Preparation and properties of polyamide/titania composite nanofiltration membrane by interfacial polymerization

Cited by 42 publications

References 30 publications

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Nanoparticles modified Polyacrylonitrile/Polyacrylonitrile – Polyvinylidenefluoride blends as substrate of high flux anti‐fouling nanofiltration membranes

Bisphenol A Removal through Low-Cost Kaolin-Based Ag@TiO₂ Photocatalytic Hollow Fiber Membrane from the Liquid Media under Visible Light Irradiation

Contact Info

Product

Resources

About

Preparation and properties of polyamide/titania composite nanofiltration membrane by interfacial polymerization

Cited by 42 publications

References 30 publications

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Preparation and characterization of carboxylated multiwalled carbon nanotube/polyamide composite nanofiltration membranes with improved performance

Nanoparticles modified Polyacrylonitrile/Polyacrylonitrile – Polyvinylidenefluoride blends as substrate of high flux anti‐fouling nanofiltration membranes

Bisphenol A Removal through Low-Cost Kaolin-Based Ag@TiO2 Photocatalytic Hollow Fiber Membrane from the Liquid Media under Visible Light Irradiation

Contact Info

Product

Resources

About

Bisphenol A Removal through Low-Cost Kaolin-Based Ag@TiO₂ Photocatalytic Hollow Fiber Membrane from the Liquid Media under Visible Light Irradiation