Immobilization of Dithizone on Natural Bentonite as Adsorbent of Cd(II) Ion

Abstract:

Research on the adsorption of Cd (II) ion in dithizone-immobilized natural bentonite has been carried out. The aims of this research were focused on the preparation of dithizone-immobilized natural bentonite (BA-D) as adsorbent and desorption experiment of Cd(II) ion. The BA-D was prepared by adding dithizone (dissolved in toluene) into the activated natural bentonite. The adsorbents were characterized by FTIR and X-Ray Diffraction (XRD). This research showed that adsorption capacities of BA-A and BA-D were 1.70×10^‒5 and 2.77×10^‒5 mol g^‒1 (46% of increasing). According to desorption experiment, interaction between activated natural bentonite and Cd(II) ionwere performed by electrostatic interaction, formation of hydrogen bond and complex formation.

• Periodical: Key Engineering Materials (Volume 840)
• Pages: 22-28
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.840.22
• Online since: April 2020
• Authors: Dini Elsi Aminy, Mudasir Mudasir*, Bambang Rusdiarso
• Keywords: Bentonite, Cadmium (II), Desorption, Dithizone, Immobilization

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