Fig. 4 | Scientific Reports

Fig. 4

From: Mechanistic insights into methylene blue biodegradation by Tetradesmus obliquus: a multimodal approach using absorption, fluorescence, and square wave voltammetry

Fig. 4

Square wave voltammograms of different MB concentrations in acetate buffer solution of pH 5.0 at a carbon paste electrode applying a frequency of 10 Hz, potential step of 10 mV and amplitude of 25 mV; (a) 0.2, (b) 0.4, (c) 0.8, (d) 1.6, (e) 2.0 and (f) 2.4 mg/L MB. Dotted curve represents the blank acetate buffer solution. A and B are for 0 and 9 days, consequently.

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