Oxidase-Like Catalytic Performance of Nano-MnO₂ and Its Potential Application for Metal Ions Detection in Water

Figure 6

pH and temperature dependent the oxidase-like activity of nano-MnO₂ for catalyzing the oxidation of 2,6-DMP. (a) Reaction conditions: Nano-MnO₂ = 0.1 mg·mL⁻¹; 2,6-DMP = 1.0 mmol·L⁻¹, pH 2.0–10.0. (b) Reaction conditions: Nano-MnO₂ = 0.1 mg·mL⁻¹; 2,6-DMP = 1.0 mmol·L⁻¹; Temperature = 10–90°C. Error bars represent the standard deviation (n = 3).

(a)

(b)