Amino-Functionalization of Multiwall Carbon Nanotubes and Its Use for Solid Phase Extraction of Mercury Ions from Fish Sample

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Kind of MWCNTs</td><td align="center" colspan="4">Acidic group (mmol/g)</td></tr><tr class="thead"><td align="center">Total</td><td align="center">Carboxyl</td><td align="center">Lactone</td><td align="center">Phenol</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">Purified MWCNTs</td><td align="center">1.04</td><td align="center">0.66</td><td align="center">0.21</td><td align="center">0.16</td></tr><tr><td align="left">Amino-functionalized MWCNTs</td><td align="center">1.04</td><td align="center">0.66</td><td align="center">0.21</td><td align="center">0.16</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Boehm titration of acidic group on the surface of purified and amino-functionalized MWCNTs.

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Table 1

Table 1: Amino-Functionalization of Multiwall Carbon Nanotubes and Its Use for Solid Phase Extraction of Mercury Ions from Fish Sample 