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.

中文翻译：

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氟离子在纤维素和氧化铝复合材料上的吸附

摘要

研究了基于微晶纤维素和固定在其表面的纳米氧化铝膜的复合材料对水中氟离子的吸附性能。发生最大氟离子吸附的吸附剂层的最佳厚度为50 nm。研究了溶液pH值和吸附时间等各种参数对吸附的影响。确定了吸附的动力学参数和该过程的速率控制步骤。红外光谱证实了氟离子吸附在制备的吸附剂上的离子交换机理。