Halloysite@polydopamine/ZIF-8 Nanocomposites for Efficient Removal of Heavy Metal Ions

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2"> </td><td class="align_center" rowspan="2">Before (ev)</td><td class="align_center" colspan="4">After adsorption</td></tr><tr class="thead"><td class="align_center">Cu<sup>2+</sup></td><td class="align_center">Pb<sup>2+</sup></td><td class="align_center">Cd<sup>2+</sup></td><td class="align_center">Ni<sup>2+</sup></td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">NH<sub>2</sub></td><td class="align_center">399.19</td><td class="align_center">398.75</td><td class="align_center">398.74</td><td class="align_center">400.12</td><td class="align_center">398.87</td></tr><tr><td class="align_left">NH</td><td class="align_center">400.81</td><td class="align_center">400.04</td><td class="align_center">400.18</td><td class="align_center">405.72</td><td class="align_center">400.37</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Binding energies of N1s before and after the adsorption.</div>

Journal of Chemistry

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Table 5

Table 5: Halloysite@polydopamine/ZIF-8 Nanocomposites for Efficient Removal of Heavy Metal Ions 