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以Cu(Ⅱ)、对甲酚为代表污染物,用实验室模拟法分别研究了十二烷基硫酸根和十二烷基苯磺酸根插层类水滑石(有机-类水滑石纳米杂化物)在重金属-有机物混合污染体系中的吸附行为.结果表明:(1)十二烷基苯磺酸根插层类水滑石对对甲酚的吸附速率和吸附量均大于十二烷基硫酸根插层类水滑石;(2)在有机-类水滑石/Cu(Ⅱ)/对甲酚体系中,溶液中共存的Cu(Ⅱ)会降低有机-类水滑石对对甲酚的吸附速率及减少吸附量;(3)有机-类水滑石对对甲酚的吸附量随体系pH的降低和电解质NaCl浓度的增加而增加.
Using Cu (Ⅱ) and p-cresol as the representative pollutants, the effects of dodecyl sulfate and dodecylbenzenesulfonate intercalation hydrotalcite (organic-type hydrotalcite nanocomposites ) In heavy metal-organic mixed pollution system.The results showed that: (1) The adsorption rate and adsorption amount of p-cresol by dodecylbenzene sulfonate intercalation hydrotalcite were all greater than that of lauryl sulfate intercalation (2) Cu (Ⅱ) / p-cresol system coexisted in organic-hydrotalcite / Cu (Ⅱ) / p-cresol system will decrease the adsorption rate of p-cresol and reduce the adsorption rate of organic-type hydrotalcite (3) The amount of p-cresol adsorbed by organic-hydrotalcite increased with the decrease of pH and the increase of electrolyte NaCl concentration.