Novel thin film nanocomposite membranes incorporated with functionalized TiO2 nanoparticles for organic solvent nanofiltration

Peyravi, Majid; Jahanshahi, Mohsen; Rahimpour, Ahmad; Javadi, Ali; Hajavi, Saeideh

doi:10.1016/j.cej.2013.12.024

Cited by 197 publications

(57 citation statements)

References 31 publications

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“…Different TiO 2 immobilized thin film membranes were investigated for increasing surface hydrophilicity of membrane [67,[69][70][71][72]. Peyravi et al [73] developed thin film nanocomposite nanofiltration membranes in which in situ interfacial incorporation of TiO 2 nanoparticles was applied to produce the thin layer along with fabrication of copolyamide network on a polyimide support. As the graphical model ( Fig.4) depicts, intermolecular cross linking reactions lead to the stability of the nanocomposite membranes.…”

Section: Improvement Of Antifouling and Other Membrane Propertiesmentioning

confidence: 99%

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TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Bet-Moushoul

Mansourpanah

Farhadi

et al. 2016

Chemical Engineering Journal

344

130

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Section: Improvement Of Antifouling and Other Membrane Propertiesmentioning

confidence: 99%

“…Functionalization mechanism of TiO 2 nanoparticles (a and b), AFM images of (c)Monoethanolamine-TiO 2 , (d) thionyl chloride-TiO 2 , and (E) Triethylene-tetramine-TiO 2 , and (F) schematic agglomeration of aminated TiO 2 nanoparticles (adopted from[73]). …”

mentioning

confidence: 99%

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Bet-Moushoul

Mansourpanah

Farhadi

et al. 2016

Chemical Engineering Journal

344

130

View full text Add to dashboard Cite

“…The roughness of polyamide layers increased after the introduction of ZnO nanospheres which would increase the effective filtration area and promote the enhancement of NF membrane water flux [43]. It should be noted that compared with previous reports where silica [44] or titanium dioxide nanospheres [22,45] were employed as the modifier, no obvious ZnO spheres exposed on polyamide layer surface. This was due to the smaller diameter (30±10 nm) and the lower additive amount (1.5 wt%) of ZnO nanospheres used here.…”

Section: Morphology Of Composite Membrane Surfacementioning

confidence: 91%

Effects of zinc oxide Nanospheres on the Separation performance of Hollow fiber poly(piperazine-amide) composite nanofiltration membranes

Shi

Zhu

et al. 2016

Fibers Polym

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The inner-skinned hollow fiber composite (HFC) nanofiltration (NF) membranes were modified through the incorporation of zinc oxide nanospheres in the poly(piperazine amide) layer during the interfacial polymerization (IP) process. The active layer was coated on the inner surface of polysulfone (PSF) support membrane via Two-way coating technique. The chemical composition and morphology of HFC membrane surface were evaluated through the Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR) and Scanning Electronic Microscopy (SEM). The effects of zinc oxide (ZnO) nanospheres on membrane performance including the hydrophilicity, separation performance and chlorine resistance were investigated. The results showed that the modified HFC membranes with low concentration ZnO nanospheres (1.5 wt%) had an improved flux (33.8 L·m -2 ·h -1 ) meanwhile the salt rejection of MgSO 4was well maintained (92.2 %) at 0.7 MPa. The introduction of ZnO also dramatically enhanced the chloride resistance of composite NF membranes in comparison with the control membranes prepared without ZnO. Therefore, nano metallic oxide like ZnO could be considered as a potential modifier to improve the performance of HFC nanofiltration membranes.

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“…On the one hand, they can be the reason of the formation of macrovoids in the membrane structure. On the other hand, they block the pores, especially when their concentration in the casting solution exceeds the optimal amount [10][11][12]. Diversified properties of modified membranes are the results of a large variety of nanomaterials, their size, composition, attached functional groups, which are responsible for the variability in the interaction polymer-nanomaterial.…”

Section: Introductionmentioning

confidence: 98%

Polyacrylonitrile membranes modified with carbon nanotubes: characterization and micropollutants removal analysis

Kamińska

Bohdziewicz

Palacio

et al. 2016

Desalination and Water Treatment

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2015):Polyacrylonitrile membranes modified with carbon nanotubes: characterization and micropollutants removal analysis, Desalination and Water Treatment,The phase inversion method was used to prepare polyacrylonitrile membranes modified with single-walled carbon nanotubes. The influence of the amount and the kind of carbon nanotubes (CNTs) (pristine and functionalized with carboxyl groups) were determined analysing the structure of membranes, hydrophobic-hydrophilic characteristics, zeta potential, and transport-separation properties. Based on the microscopic analysis, it was established that their structure changed depending on the amount of nanotubes added. The membranes with the highest content of CNTs were characterized by the highest membrane capacity. Those membranes were used in low pressure filtration in order to remove micropollutants from synthetic wastewater. The effectiveness of micropollutants removal was dependant on the kind of membrane-in the range 15-65% for bisphenol A, and 25-87% for nonylphenol.The key mechanism in separation of low molecular organic compounds was the sorption phenomenon intensified by the presence of CNTs.

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Novel thin film nanocomposite membranes incorporated with functionalized TiO2 nanoparticles for organic solvent nanofiltration

Cited by 197 publications

References 31 publications

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Effects of zinc oxide Nanospheres on the Separation performance of Hollow fiber poly(piperazine-amide) composite nanofiltration membranes

Polyacrylonitrile membranes modified with carbon nanotubes: characterization and micropollutants removal analysis

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