Preparation of chemically active mesoporous adsorbent for Pt(II) and Pd(II) adsorption from aqueous solutions

Abstract

Chemically active mesoporous silica was prepared via grafting of N-(3-triethoxysilylpropyl)-4, 5-dihy- droimidazole. Binding behavior of the adsorbent toward Pt(II) and Pd(II) ions was investigated. In addition, the pro perties of the adsorbent, such as pore structure and pore uniformity, were also examined. Results showed that the adsorbents developed in this study have high affinity for noble metal ions, such as Pt(II) and Pd(II), in aqueous solutions.