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ABSTRACT A designed new adsorbent by coupling chitosan and 1-Amino-2-naphthol-4-sulphonic acid to get an excellent synergistic effect of 1-Amino-2-naphthol-4-sulphonic coupled chitosan (ANSC) which used for the removal of tetravalent thorium… Click to show full abstract
ABSTRACT A designed new adsorbent by coupling chitosan and 1-Amino-2-naphthol-4-sulphonic acid to get an excellent synergistic effect of 1-Amino-2-naphthol-4-sulphonic coupled chitosan (ANSC) which used for the removal of tetravalent thorium ions. The modified chitosan adsorbent was identified by BET isotherm studies, elemental analysis, SEM, EDX and FT-IR, techniques. The FT-IR confirmed the structure of the modified chitosan. Langmuir isotherm model described the adsorption results with the 252.57 mg/g maximum adsorption capacity. It should be perceived that the thorium ions adsorption matched more careful with the kinetics pseudo-second-order. It was found that the adsorption of Th(IV) is strongly dependent on pH and time.
Journal Title: International Journal of Environmental Analytical Chemistry
Year Published: 2019
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