Removal of Cu(II) from water by tetrakis(4-carboxyphenyl) porphyrin-functionalized mesoporous silica

The tetrakis(4-carboxyphenyl)porphyrin (TCPP) as an organic moiety was successfully incorporated onto in mesoporous silica by the post-synthetic method. Chelating properties of TCPP make this attractive adsorbent for Cu(II) ions removal from aqueous solutions. The adsorption of copper (II) on TCPP-SBA-15 was studied comparing with adsorption on NH2-SBA-15 silica. The result show that the adsorbed amount reaches the maximum around 13 mmol g−1 and TCPP-SBA-15 material has higher adsorbed capacity than NH2-SBA-15 silica.