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. Author manuscript; available in PMC: 2013 Jan 17.
Published in final edited form as: Environ Sci Technol. 2011 Dec 16;46(2):1055–1062. doi: 10.1021/es203612d

Figure 3.

Figure 3

Effect of dissolved SiO2 on H2O2 decomposition by goethite. [goethite] = 4 g/L, [H2O2]initial = 5.1 ± 0.1 mM, pH = 6.9 ± 0.1, [PIPES] = 1 mM, [NaNO3] = 0.1 M. Solid lines are first-order fit of H2O2 decomposition (a) and linear fits of first order rate constant kobs vs. SiO2 sorbed (b).