Effect of Ionic Liquid Surfactants on Coal Oxidation and Structure

<div>UV-Vis spectra for [HOEtMIm][NTf<sub>2</sub>] and [C<sub>12</sub>MIm]Br solutions at different concentrations (mol/L) containing fluorescein as fluorescence probe. (a) UV-Vis spectra for [HOEtMIm][NTf<sub>2</sub>] concentrations. (b) UV-Vis spectra for [C<sub>12</sub>MIm]Br solutions.</div>

Journal of Analytical Methods in Chemistry

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Figure 2

Figure 2: Effect of Ionic Liquid Surfactants on Coal Oxidation and Structure 