We want to extract graphene from the solution it is suspended in after synthesis. we used Hummer’s method .
To remove Mn ,Cl and other impurities from GO suspension, try to perform successive washing and centrifugation of GO first with dilute HCl and then with water several time until the pH of suspension reaches ~6-7.
To remove Mn ,Cl and other impurities from GO suspension, try to perform successive washing and centrifugation of GO first with dilute HCl and then with water several time until the pH of suspension reaches ~6-7.
After adding HCl, DI water is okay. You must confirm the absence of Cl- ion by AgNO2 solution with subsequent water wash. Finally, wash with EtOH twice through centrifuge. Then dry.
Go for XPS and confirm for the presences of only C and O elements.
Thanks.
It is carried out by thoroughly washing with dilute Hydrochloric acid several times to remove impurties related to metal ions and then washing with deionized water again multiple times to attain neutral pH. Centrifuge can be use to do this washing.
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