<p><span style="font-size:14px"><span style="font-family:Arial,Helvetica,sans-serif">Partial carbonized nanoporous resin (PCNR-150), based on organic xerogel compounds, was prepared at 150 &ordm;C by sol&ndash;gel method from pyrogallol and formaldehyde mixtures in water using perchloric acid as catalyst. &nbsp;The PCNR-150 was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transformed infrared spectroscopy (FTIR) and nitrogen porosimetry. The metal uptake characteristics were explored using well-established and effective parameters including pH, contact time, initial metal ion concentration, and temperature. Optimum adsorptions of Co²⁺ and Ni²⁺, using PCNR-150 as adsorbent, were observed at pH 5 and 7, respectively. Langmuir model gave a better fit than the other models, and kinetic studies revealed that the adsorption is fast and its data are well fitted by the pseudo-second-order kinetic model and thermodynamic properties, i.e., &Delta;G^o, &Delta;H^o, and &Delta;S^o, showed that adsorption of Co²⁺ and Ni²⁺onto PCNR-150 was endothermic, spontaneous and feasible in the temperature range of 300&ndash;328 K.</span></span></p>