Research Article

Removal of Pb(II) from Aqueous Solutions with Manganese Oxide-Modified Diatomite

Figure 1

SEM images of diatomite (a) and the Mn/diatomite samples prepared at different hydrothermal temperatures: (b) 80°C; (c) 120°C; (d) 160°C, and the insets present TEM images (experimental conditions: hydrothermal time of 16 h and molar ratio of KMnO4/HCl 1 : 8).
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(b)
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