scholarly journals Color Removal from Wastewater using a Synthetic High Performance Antifouling GO-CPTMS@Pd-TKHPP/Polyether Sulfone Nanofiltration Membrane

2021 ◽  
Author(s):  
foad gholami ◽  
sirus zinadini ◽  
Soheila Nakhjiri Kamrani ◽  
ali akbar zinatizadeh ◽  
Kiumars Bahrami
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Pure Water ◽  
Water Flux ◽  
Nanofiltration Membrane ◽  
Powdered Milk ◽  
Water Contact ◽  
Polyether Sulfone ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Abstract Modified graphene oxide with 5,10,15,20-tetrakis‐(4‐hexyloxyphenyl) ‐porphyrin and palladium (II) (signified by GO-CPTMS@Pd-TKHPP) prepared as a novel antifouling polyether sulfone (PES) blended nanofiller membrane. The membrane efficiency has been analyzed such as pure water flux (PWF), hydrophilicity and antifouling features. By increasing of modified graphene oxide percentage from 0 to 0.1 wt.% in polymer matrix the PWF was incremented from 14.35 to 37.33 kg/m2.h at 4bar. The membrane flux recovery ratio (FRR) has been investigated by applying powdered milk solution, the FRR results indicated that the 0.1 wt.% modified graphene oxide membrane showed the positive effect on fouling behavior with Rir and FRR value 8.24 and 91.73% respectively. The nanofiltration membrane performance was assessed applying the Direct Red 16 dye rejection. It was demonstrated that the optimal membranes (0.1 wt.% modified graphene oxide) had notable dye removal (99.58 % rejection). The results are also verified by measuring the scanning electron microscopy (SEM), water contact angle (WCA) and atomic microscopy analysis (AFM).

scholarly journals Hyperbranched polyamide modified graphene oxide-reinforced polyurethane nanocomposites with enhanced mechanical properties

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14484-14494
Author(s):  
Yahao Liu ◽  
Jian Zheng ◽  
Xiao Zhang ◽  
Yongqiang Du ◽  
Guibo Yu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
High Performance ◽  
Cross Linking ◽  
Elongation At Break ◽  
Modified Graphene Oxide ◽  
High Performance Composite ◽  
Modified Graphene ◽  
Polyurethane Nanocomposites ◽  
Hyperbranched Polyamide

We successfully modified graphene oxide with amino-terminated hyperbranched polyamide (HGO), and obtained a high-performance composite with enhanced strength and elongation at break via cross-linking hydroxyl-terminated polybutadiene chains with HGO.

High-Performance Perovskite Solar Cells Engineered by an Ammonia Modified Graphene Oxide Interfacial Layer

2016 ◽  
Vol 8 (23) ◽  
pp. 14503-14512 ◽  
Author(s):  
Shanglei Feng ◽  
Yingguo Yang ◽  
Meng Li ◽  
Jinmiao Wang ◽  
Zhendong Cheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Interfacial Layer ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Fabrication and characterization of in situ graphene oxide reinforced high-performance shape memory polymeric nanocomposites from vegetable oil

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27648-27658 ◽  
Author(s):  
Rakesh Das ◽  
Sovan Lal Banerjee ◽  
P. P. Kundu
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Linseed Oil ◽  
Polymeric Nanocomposites ◽  
Modified Graphene Oxide ◽  
Fabrication And Characterization ◽  
Surface Modified ◽  
Modified Graphene

Polymeric nanocomposites have been fabricated via in situ cationic polymerization of linseed oil in the presence of surface-modified graphene oxide (SGO).

scholarly journals Preparation and Properties of Polyvinylidene Fluoride Nanocomposited Membranes based on Poly(N-Isopropylacrylamide) Modified Graphene Oxide Nanosheets

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 473 ◽  
Author(s):  
Xiangli Meng ◽  
Yuan Ji ◽  
Genhua Yu ◽  
Yujia Zhai
Keyword(s):  
Contact Angle ◽  
Graphene Oxide ◽  
Photoelectron Spectroscopy ◽  
Polyvinylidene Fluoride ◽  
Phase Inversion ◽  
Doping Amount ◽  
Water Contact ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Scanning Electron

The nanomaterial of graphene oxide grafting poly (N-isopropylacrylamide) (GO-g-PNIPAAm) was synthesized and PVDF/GO-g-PNIPAAm blended membranes were fabricated by wet phase inversion. In this work, a hydrophilic nanomaterial GO-g-PNIPAAm with poly(N-isopropylacrylamide) (PNIPAAm) grafted on GO, was synthesized by the atom transfer radical polymerization (ATRP) method. The resulting nanomaterial was confirmed by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), Raman spectrum, and X-ray photoelectron spectroscopy (XPS) analysis. The synthesized GO-g-PNIPAAm was incorporated with polyvinylidene fluoride (PVDF) via phase inversion, and investigated for its temperature sensitivity, porosity, contact angle, scanning electron microscopy, and permeate properties. The water contact angle measurements confirmed that GO-g-PNIPAAm nanomaterial-endowed PVDF membranes with better hydrophilicity and thermo-responsive properties compared with those of the pristine PVDF membranes. Bovine serum albumin (BSA) adsorption experiments suggested that excellent antifouling properties of membranes were acquired after adding GO-g-PNIPAAm. The modified membranes showed good performance when the doping amount of GO-g-PNIPAAm was 0.2 wt %.

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