The sorption of phosphate on cobalt hydroxide is studied as a function of temperature (25 - 55 DC) and concentration (1.94 - 3.23 mmol/l). The mechanism of sorption is observed to be the replacement of OU· anions from the adsorbent surface by those of phosphate from the aqueous solution. A modified form ofthe Langmuir equation was used to explain the ion exchange sorption of phosphate on the Co(OUh. The IR studies of phosphate sorption are also made to determine the nature of phosphate ion bonding with the surface of the adsorbent.
N REHANA ,A NAEEM ,M SAFDAR ,S MUSTAFA ,G NAWAB ,N REHANA ,A NAEEM ,G NAWAB ,M SAFDAR ,
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