Performance of octadecylamine-functionalized graphene oxide nanosheets in polydimethylsiloxane mixed matrix membranes for removal of toluene from water by pervaporation

Jafari, Abolfazl; Mortaheb, Hamid Reza; Gallucci, Fausto

doi:10.1016/j.jwpe.2021.102497

Cited by 17 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By incorporating rGOODA in the membrane, the long alkyl chains of ODA can promote the solution of toluene in the membrane (Tessonnier and Barteau, 2012). Moreover, the free energy of graphene nanosheets is approached to that of PDMS by functionalizing with ODA so that the polymer becomes more compatible with the graphenic nanosheets (Raeisi et al, 2021) and well-dispersed in the polymeric matrix as confirmed by SEM-EDX map on nitrogen element in a previous study (Jafari et al, 2022). The Meanwhile, the hydrophobicity of the filled membrane due to the long alkyl chains in the ODA structure acts as a barrier against the dissolution of water molecules.…”

Section: Resultssupporting

confidence: 56%

“…Pervaporation of toluene from the water was carried out by the experimental setup as depicted in Fig. 1 (Jafari et al, 2022). As seen in the figure, the pervaporation process was performed in a dead-end cell, in which the feed solution was separated from the permeate side by a hybrid membrane containing a PDMS active layer on a PES support membrane.…”

Section: Experimental Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Plasma treatment for enhanced functionalization of graphene nanosheets by octadecylamine

Jafari

Mortaheb

Gallucci

2022

Chemical Engineering Research and Design

Self Cite

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 56%

Section: Experimental Methodsmentioning

confidence: 99%

Plasma treatment for enhanced functionalization of graphene nanosheets by octadecylamine

Jafari

Mortaheb

Gallucci

2022

Chemical Engineering Research and Design

Self Cite

View full text Add to dashboard Cite

“…8). This may be due to the dense structure and inhibited pores, which revealed the major effect of the excessive agglomerated particles existing in the dope solution [70].…”

Section: Performance Evaluation Hollow Bre Membranesmentioning

confidence: 99%

Development of Novel Fouling-Resistant Hollow Fibre Nanocomposite Membrane Augmented with Iron Oxide Nanoparticles for Efficient Rejection of Bisphenol A from Water: Fouling, Permeability, and Mechanism Studies

et al. 2023

View full text Add to dashboard Cite

Recently, frequent discharge of water-ladened emerging organic pollutants such as Bisphenol A has generated serious concern owing to its harmful effects on public safety and the ecological environment. Hematite nanoparticles (Fe 2 O 3 ) were synthesized via the sol-gel auto-combustion procedure and utilized as a nano ller to fabricate a PVDF-PEG/Fe 2 O 3 nanocomposite hollow bre membrane with enhanced antifouling properties. A series of membranes comprising various loadings (1.0-2.0 wt.%) of Fe 2 O 3 NPs were fabricated through the phase inversion technique and thoroughly analyzed. The developed Fe 2 O 3membrane bres were thoroughly characterized. The performance of the membrane bres was investigated through permeation ux, BPA rejection, as well as antifouling characteristics. Based on the results obtained, the resultant nanocomposite membrane bres exhibited superior performance in comparison with the pristine bre. Also, the nanocomposite membrane with 1.5 wt.%-Fe 2 O 3 NPs exhibited remarkable performance with − 43.7 mV, 56.3º, 191.85 L/m 2 -h, 86.7%, and 12% of negatively charged zeta potential, least contact angle, water permeation ux, BPA rejection, and minimum weight loss, respectively. Besides, the 1.5 wt-Fe 2 O 3 NPs nanocomposite membrane demonstrated superior antifouling performance after the third ltration, accomplishing a higher percent of FRR (77.35%) along with RFR of 21.29%, respectively. Hence, based on the performance of the fabricated hollow-bre membranes loaded with Fe 2 O 3 NPs, e cient antifouling membranes was achieved which can be suitably applied in the puri cation of industrial wastewater.

show abstract

“…Shen et al [ 28 ] utilized GO in PDMS for a propane recovery application. Jafari et al utilized reduced graphene oxide (rGO) functionalized with octadecylamine for toluene removal using pervaporation [ 29 ]. Based on our literature study, we believe that PDMS MMM utilizing 2D nanosheet metal oxide filler is yet to be reported exclusively for CO 2 /N 2 and CO 2 /CH 4 separation application.…”

Section: Introductionmentioning

confidence: 99%

Polydimethylsiloxane/Magnesium Oxide Nanosheet Mixed Matrix Membrane for CO2 Separation Application

2023

View full text Add to dashboard Cite

Carbon dioxide (CO2) concentration is now 50% higher than in the preindustrial period and efforts to reduce CO2 emission through carbon capture and utilization (CCU) are blooming. Membranes are one of the attractive alternatives for such application. In this study, a rubbery polymer polydimethylsiloxane (PDMS) membrane is incorporated with magnesium oxide (MgO) with a hierarchically two-dimensional (2D) nanosheet shape for CO2 separation. The average thickness of the synthesized MgO nanosheet in this study is 35.3 ± 1.5 nm. Based on the pure gas separation performance, the optimal loading obtained is at 1 wt.% where there is no observable significant agglomeration. CO2 permeability was reduced from 2382 Barrer to 1929 Barrer while CO2/N2 selectivity increased from only 11.4 to 12.7, and CO2/CH4 remained relatively constant when the MMM was operated at 2 bar and 25 °C. Sedimentation of the filler was observed when the loading was further increased to 5 wt.%, forming interfacial defects on the bottom side of the membrane and causing increased CO2 gas permeability from 1929 Barrer to 2104 Barrer as compared to filler loading at 1 wt.%, whereas the CO2/N2 ideal selectivity increased from 12.1 to 15.0. Additionally, this study shows that there was no significant impact of pressure on separation performance. There was a linear decline of CO2 permeability with increasing upstream pressure while there were no changes to the CO2/N2 and CO2/CH4 selectivity.

show abstract

Performance of octadecylamine-functionalized graphene oxide nanosheets in polydimethylsiloxane mixed matrix membranes for removal of toluene from water by pervaporation

Cited by 17 publications

References 50 publications

Plasma treatment for enhanced functionalization of graphene nanosheets by octadecylamine

Plasma treatment for enhanced functionalization of graphene nanosheets by octadecylamine

Development of Novel Fouling-Resistant Hollow Fibre Nanocomposite Membrane Augmented with Iron Oxide Nanoparticles for Efficient Rejection of Bisphenol A from Water: Fouling, Permeability, and Mechanism Studies

Polydimethylsiloxane/Magnesium Oxide Nanosheet Mixed Matrix Membrane for CO2 Separation Application

Contact Info

Product

Resources

About