The Sorption of Ni(II) by Grape Shell Ash from Aqueous Solution: Kinetic and Thermodynamic Studies

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">pH</td><td align="center">The maximum uptake efficiency (mg g<sup>−1</sup>)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">2</td><td align="center">7.2068</td></tr><tr><td align="left">3</td><td align="center">7.6206</td></tr><tr><td align="left">4</td><td align="center">8.8964</td></tr><tr><td align="left">5</td><td align="center">9.0344</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The maximum amount of Ni(II) sorbate as a function of pH at 20 min.

Indian Journal of Materials Science

tab1

Table 1

Table 1: The Sorption of Ni(II) by Grape Shell Ash from Aqueous Solution: Kinetic and Thermodynamic Studies 