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Figure 7 | Nanoscale Research Letters

Figure 7

From: Green synthesis and synergistic catalytic effect ofAg/reduced graphene oxide nanocomposite

Figure 7

ln ( C t / C 0 ) versus time. Plots of ln (C t /C0) versus time for the catalytic reduction of 4-NP with NaBH4(a) by Ag/rGO nanocomposite at different temperatures; (b) by different amounts of Ag/rGO nanocomposite; (c) by Ag/rGO nanocomposites 1C, 3C, and 5C; and (d) by Ag/rGO nanocomposite at different initial 4-NP concentrations. C0 and C t denote the concentrations of 4-NP when times were 0 and t, respectively. [NaBH4]/[4-NP] = 100. Unless otherwise specified in the figures, [4-NP] = 0.05 mM, catalyst amount = 0.25 mg/100 mL, temperature = 25°C, and Ag/rGO nanocomposite = 3C. The inset in (a) indicates the corresponding Arrhenius plot. The inset in (b) indicates the relationship between the pseudo-first-order rate constant and catalyst amount.

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