Adsorption of Aromatic Compounds by Activated Carbon: Effects of Functional Groups and Molecular Size
Adsorption of Aromatic Compounds by Activated Carbon: Effects of Functional Groups and Molecular Size
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DOI：
10.1260/026361702760120890
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发表时间：
2002-02
影响因子：
2.9
通讯作者：
S. Nouri;F. Haghseresht;Max G. Q. Lu
中科院分区：
文献类型：
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作者：
S. Nouri;F. Haghseresht;Max G. Q. Lu
研究了三种芳香族化合物在未经处理的活性炭上的吸附。在所有实验中降低溶液pH，使得所有溶质处于其分子形式。结果表明，溶质的最大吸附量的差异主要是由于分子大小和官能团的不同。此外，还说明了填料排列最有可能是具有各种倾斜角度的边对面（吸附剂-吸附剂）。另一方面，吸附系统的亲和性和非均匀性显然与溶质的pKa值有关。
The adsorption of three aromatic compounds on to an untreated carbon was investigated. The solution pH was lowered in all experiments so that all the solutes were in their molecular forms. It was shown that the difference in the maximum adsorption of the solutes was mainly a result of the difference in the sizes of the molecules and their functional groups. Furthermore, it was illustrated that the packing arrangement was most likely edge-to-face (sorbate–sorbent) with various tilt angles. On the other hand, the affinity and heterogeneity of the adsorption systems were apparently related to the pKa values of the solutes.