Efficient Removal of Cr(VI) with Fe/Mn Mixed Metal Oxide Nanocomposites Synthesized by a Grinding Method

<div class="floats-full-page floats-full-page-other"><h2>Table 1</h2><div class="floats-full-page-caption">BET surface areas and removal capacity of different kinds of adsorbent samples.</div><div class="floats-full-page-content"><table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr /></td></tr><tr class="thead"><td align="left">Adsorbent samples</td><td align="center">BET surface area (m2·g−1)</td><td align="center">Adsorption capacity for Cr(VI) (mg·g−1)</td></tr><tr><td class="thead-hr" colspan="3"><hr /></td></tr><tr><td align="left">Fe2O3-Mn3O4 (1 : 0)*</td><td align="center">187</td><td align="center">22.9</td></tr><tr><td align="left">Fe2O3-Mn3O4 (1 : 2.5)*</td><td align="center">213</td><td align="center">21.3</td></tr><tr><td align="left">Fe2O3-Mn3O4 (1 : 5)*</td><td align="center">222</td><td align="center">21.2</td></tr><tr><td align="left">Fe2O3-Mn3O4 (1 : 10)*</td><td align="center">264</td><td align="center">24.6</td></tr><tr><td align="left">Fe2O3-Mn3O4 (1 : 15)*</td><td align="center">268</td><td align="center">26.3</td></tr><tr><td align="left">Mn3O4</td><td align="center">61</td><td align="center">11.6</td></tr><tr><td align="left"><svg height="12.175" id="M27" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 8.6374998 12.175" width="8.6374998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,7.675)"><path d="M478 372q0 -39 -31 -97t-61 -98t-78 -98q-45 -55 -73 -102q-13 -79 -13 -197q-11 -11 -43.5 -25.5t-53.5 -15.5l-15 17q5 35 26 101.5t47 123.5q8 72 -1.5 174.5t-37.5 178.5q-14 37 -29 37q-20 0 -67 -65l-25 21q37 60 73 90.5t63 30.5q47 0 72 -112q13 -56 17.5 -141.5&#10;t0.5 -143.5h2q155 193 155 297q0 26 -12 47q-5 8 -5 15q0 16 12.5 27t29.5 11q21 0 34 -21t13 -55z" id="x1D6FE"></path></g>
</svg>-Fe2O3 [<a href="../../514917/#B15">15</a>]</td><td align="center">178</td><td align="center">19.4</td></tr><tr><td align="left">Fe3O4</td><td align="center">198</td><td align="center">21.0</td></tr><tr><td align="left">MnFe2O4(MnO2 and Fe2O3) [<a href="../../514917/#B14">14</a>] </td><td align="center">208</td><td align="center">31.3</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr" /></td></tr></table></td></tr><tr class="table-fn"><td><svg height="13.75" id="M28" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 7.7375002 13.75" width="7.7375002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.012,-0,0,-.012,.062,5.525)"><path d="M471 153q-22 -15 -61 -13q-25 31 -45.5 49.5t-56.5 41.5q4 -71 28 -134q-17 -33 -42 -46q-24 12 -42 46q24 63 28 134q-36 -23 -56.5 -41.5t-45.5 -49.5q-36 -2 -61 13q0 28 19 59q65 10 130 43q-65 33 -130 43q-19 31 -19 59q22 15 61 13q25 -31 45.5 -49.5t56.5 -41.5&#10;q-4 71 -28 134q17 33 42 46q24 -12 42 -46q-24 -63 -28 -134q36 23 56.5 41.5t45.5 49.5q36 2 61 -13q0 -28 -19 -59q-65 -10 -130 -43q65 -33 130 -43q19 -31 19 -59z" id="x2217"></path></g>
</svg>Different ratio of MnCl2 to KCl in the preparation. </td></tr></table></div></div>

Table 1 | Efficient Removal of Cr(VI) with Fe/Mn Mixed Metal Oxide Nanocomposites Synthesized by a Grinding Method

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Table 1: Efficient Removal of Cr(VI) with Fe/Mn Mixed Metal Oxide Nanocomposites Synthesized by a Grinding Method

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Table 1

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