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Water Purification using Graphene Covered Micro-porous, Reusable Carbon Membrane

Published online by Cambridge University Press:  15 March 2016

Pranav Bhagwan Pawar ,
Santosh K Maurya ,
Ragvendra Pratap Chaudhary ,
Dhanashree Badhe ,
Sumit Saxena  and
Shobha Shukla
Pranav Bhagwan Pawar*
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
Santosh K Maurya
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
Ragvendra Pratap Chaudhary
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
Dhanashree Badhe
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
Sumit Saxena
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
Shobha Shukla
Affiliation:
Nanostructures Engineering and Modelling Laboratory, Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai, MH, India- 400076.
*
*(Email: [email protected])
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Abstract

The discovery of graphene based materials has led to significant advancement in several different areas. The large surface area, nanoporous structure and availability of delocalized electron network provide a unique opportunity for purification of solvents via adsorption, absorption or simple trapping. This makes graphene based materials as potential candidates for purification and desalination of water. Here we report synthesis of 3D porous network of oxidized graphene for purification of sea water. The membranes fabricated using these frameworks are hierarchically linked intrinsically defected oxidised graphene sheets by long micro-channels and capable of filtering small ions such as Na+ and Cl-. These are easy to fabricate, reusable and economically viable especially for point of use application. We finally show a fabricated device using membrane made from these 3D networks of oxidized graphene.

Keywords

absorptionadsorptionpurification
Type
Articles
Information
MRS Advances , Volume 1 , Issue 20: Nanomaterials and Synthesis , 2016 , pp. 1411 - 1416
Copyright
Copyright © Materials Research Society 2016 

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References

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