Research Article
Efficient Removal of Cr(VI) with Fe/Mn Mixed Metal Oxide Nanocomposites Synthesized by a Grinding Method
Table 1
BET surface areas and removal capacity of different kinds of adsorbent samples.
| | Adsorbent samples | BET surface area
(m2·g−1) | Adsorption capacity for Cr(VI)
(mg·g−1) |
| | Fe2O3-Mn3O4 (1 : 0)* | 187 | 22.9 | | Fe2O3-Mn3O4 (1 : 2.5)* | 213 | 21.3 | | Fe2O3-Mn3O4 (1 : 5)* | 222 | 21.2 | | Fe2O3-Mn3O4 (1 : 10)* | 264 | 24.6 | | Fe2O3-Mn3O4 (1 : 15)* | 268 | 26.3 | | Mn3O4 | 61 | 11.6 | | -Fe2O3 [15] | 178 | 19.4 | | Fe3O4 | 198 | 21.0 | | MnFe2O4(MnO2 and Fe2O3) [14] | 208 | 31.3 |
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Different ratio of MnCl2 to KCl in the preparation.
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