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Title: Studies on ferric oxide hydroxides. 3: Adsorption of selenite (SeO{sub 3}{sup 2{minus}}) on different forms of iron oxyhydroxides

Journal Article · · Journal of Colloid and Interface Science
; ; ;  [1]
  1. Regional Research Lab., Orissa (India)

Adsorption of selenite (SeO{sub 3}{sup 2{minus}}) on different polymorphic forms of iron oxyhydroxides and amorphous ferrihydrite was studied as a function of time, temperature, pH, and concentration of adsorbate(s) and adsorbent(s). Analysis of adsorption data indicates that the surfaces of all the forms of oxyhydroxides and ferrihydrite are heterogeneous in nature and that adsorption fits into a heterogeneous site binding model. The adsorption capacity of oxyhydroxides for SeO{sub 3}{sup 2{minus}} follows the order {beta}-FeOOH < {alpha}-FeOOH < {gamma}-FeOOH < {delta}-FeOOH < ferrihydrite.

OSTI ID:
438892
Journal Information:
Journal of Colloid and Interface Science, Vol. 185, Issue 2; Other Information: PBD: 15 Jan 1997
Country of Publication:
United States
Language:
English