Effect of Bio-ionic liquid on the spontaneous reduction and dispersion stability of GO in water

What is it about?

Treatment of GO at elevated temperature with four choline based bio-ILs having counter anions with different nucleophilicity. The prGO formed in the presence of chol-HCOO & chol-C5H11COO had long term dispersion stability in water (>1 year). The results showed that ILs having strong nucleophiles were able to reduce GO to a higher extent with short term dispersion stability of the prGO, while the ILs with weaker nucleophiles gave the formation of prGO with long term dispersion stability in water.

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Why is it important?

There are many reports on the reduction of GO using various reducing agents but there is no attempt made to study effects of various counter anions present in ILs towards reduction efficiency of GO & there by the dispersion stability in water. Herewith we report surface modification of GO using choline based bio-ILs having four different anions, which and subsequently dispersion stability of the functionalized GO in water for more than one year.