scholarly journals Functionalization of reverse osmosis membrane with graphene oxide and polyacrylic acid to control biofouling and mineral scaling

2020 ◽  
Vol 736 ◽  
pp. 139500 ◽  
Author(s):  
Mohammad Y. Ashfaq ◽  
Mohammad A. Al-Ghouti ◽  
Nabil Zouari
Keyword(s):  
Graphene Oxide ◽  
Reverse Osmosis ◽  
Polyacrylic Acid ◽  
Reverse Osmosis Membrane ◽  
Mineral Scaling

Polyacrylic acid-brushes tethered to graphene oxide membrane coating for scaling and biofouling mitigation on reverse osmosis membranes

2021 ◽  
pp. 119308
Author(s):  
Ali Ansari ◽  
Janire Peña-Bahamonde ◽  
Meng Wang ◽  
Devin L. Shaffer ◽  
Yandi Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reverse Osmosis ◽  
Polyacrylic Acid ◽  
Membrane Coating ◽  
Oxide Membrane ◽  
Reverse Osmosis Membranes

Facile Fabrication of Unimpeded and Stable Graphene Oxide Coating on Reverse Osmosis Membrane for Dual‐Functional Protection

2018 ◽  
Vol 3 (43) ◽  
pp. 12122-12130
Author(s):  
Ruirui Hu ◽  
Chen Wang ◽  
Xu Liu ◽  
Yijia He ◽  
Guoke Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reverse Osmosis ◽  
Oxide Coating ◽  
Reverse Osmosis Membrane ◽  
Dual Functional ◽  
Facile Fabrication

Graphene oxide-embedded thin-film composite reverse osmosis membrane with high flux, anti-biofouling, and chlorine resistance

2015 ◽  
Vol 483 ◽  
pp. 128-135 ◽  
Author(s):  
Hee-Ro Chae ◽  
Jaewoo Lee ◽  
Chung-Hak Lee ◽  
In-Chul Kim ◽  
Pyung-Kyu Park
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Reverse Osmosis ◽  
High Flux ◽  
Reverse Osmosis Membrane ◽  
Film Composite ◽  
Thin Film Composite

A facile route to enhance the water flux of a thin-film composite reverse osmosis membrane: incorporating thickness-controlled graphene oxide into a highly porous support layer

2015 ◽  
Vol 3 (44) ◽  
pp. 22053-22060 ◽  
Author(s):  
Jaewoo Lee ◽  
Jun Hee Jang ◽  
Hee-Ro Chae ◽  
Sang H. Lee ◽  
Chung-Hak Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Reverse Osmosis ◽  
Water Flux ◽  
Single Layer Graphene ◽  
Reverse Osmosis Membrane ◽  
Porous Support ◽  
Film Composite ◽  
Thin Film Composite ◽  
Highly Porous

Incorporation of single-layer graphene oxide into a highly porous support layer provides a thin-film composite reverse osmosis membrane with superior water flux.

Functionalization of Reverse Osmosis Membrane with Titania Nanotube and Polyacrylic Acid for Enhanced Antiscaling Properties

2021 ◽  
pp. 105937
Author(s):  
Ying Siew Khoo ◽  
Woei Jye Lau ◽  
Yong Yeow Liang ◽  
Bassem Al-Maythalony ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Reverse Osmosis ◽  
Polyacrylic Acid ◽  
Reverse Osmosis Membrane ◽  
Titania Nanotube

scholarly journals Development of Polymer Modified Graphene Oxide Nanocomposite Membranes to Reduce both Scaling and Biofouling

2020 ◽  
Author(s):  
Mohammad Yousaf Ashfaq ◽  
Mohammad Al-Ghouti ◽  
Nabil Zouari ◽  
Hazim Qiblawey
Keyword(s):  
Graphene Oxide ◽  
Reverse Osmosis ◽  
Calcium Sulfate ◽  
Widespread Application ◽  
Sulfate Ions ◽  
Modified Graphene Oxide ◽  
Radiation Technique ◽  
Mineral Scaling ◽  
Seawater Reverse Osmosis ◽  
Modified Graphene

In seawater reverse osmosis (SWRO), membrane scaling is one of the major issues affecting its widespread application in the desalination industry. In this research, the effect of concentration of calcium and sulfate ions from 20 to 150 mM and temperature from 5 to 35̊C on calcium sulfate scaling of reverse osmosis (RO) and Graphene oxide functionalized RO membranes was investigated. It was found that increase of concentration as well as temperature enhances the mineral scaling, where morphology of crystals varies from rod shaped to rosette structures. It was also observed that commonly found seawater bacteria can use antiscalants as an energy/carbon source thereby degrading them and reducing their efficiency to reduce mineral scaling. Moreover, bacteria were found to be capable of inducing/mediating calcium sulfate precipitation on RO membranes, further enhancing the mineral scaling. Therefore, it was important to modify RO membranes capable of simultaneously reduce both mineral scaling and biofouling. For this purpose, RO membrane was modified with antibacterial graphene oxide and polymer antiscalants using microwave radiation technique. It was found that the modified membranes were able to inhibit microbial growth up to 95%, while, mineral scaling was also reduced by 97%. Hence, it was concluded that the coating of polymer modified graphene oxide nanocomposites on RO membranes can simultaneously reduce both biofouling and scaling. So far, such dual characteristics of modified membranes have not been reported in the literature.

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