I want to prepare graphene oxide around zeta size 20d.nm. Do you know, how to procedure to make the small size GO? Or any companies make the GO around 20d.nm, please give the company information.
May be this article will be usefull for you:
Understanding the pH-Dependent Behavior of Graphene OxideAqueous Solutions: A Comparative Experimental and MolecularDynamics Simulation Study
by Chih-Jen Shih, Shangchao Lin, Richa Sharma, Michael S. Strano, and Daniel Blankschtein
Available from:
https://www.researchgate.net/publication/51757325_Understanding_the_pH-Dependent_Behavior_of_Graphene_Oxide_Aqueous_Solutions_A_Comparative_Experimental_and_Molecular_Dynamics_Simulation_Study
Article Understanding the pH-Dependent Behavior of Graphene Oxide Aq...
Quantitative investigation of the fragmentation process and defect density evolution of oxo-functionalized graphene due to ultrasonication and milling
https://dx.doi.org/10.1016/j.carbon.2015.10.021
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- Ultrasound, Pulsed mode, external refridgeration -> particles properties do not change, but size gets smaller.
- Ultrasound without refridgeration -> particles begin to decompose, you loose functional groups due to CO/CO2 evolution. but process can be done faster than the method with external refridgeration to
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