Abstract
Sorption properties of a composite based on microcrystalline cellulose and nanosized aluminum oxide film immobilized on its surface in removal of fluoride ions from water are studied. The optimal thickness of the sorbent layer at which the maximum sorption of fluoride ions occurs is 50 nm. The effects of various parameters, such as the solution pH and sorption time, on sorption are studied. The kinetic parameters of sorption and the rate-controlling step of the process are determined. The ion exchange mechanism of fluoride ion sorption onto the prepared sorbent is confirmed by IR spectroscopy.
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