In this study, the adsorption capacity of organo-montmorillonites (OMt) modified with cationic surfactants and chelating reagent toward binary-component, heavy metal and organic pollutant, in aqueous solution was investigated through batch experiments. The characteristics of the OMt were analyzed by X-ray diffraction (XRD), Fourier transform infrared spectra (FTIR), Specific surface area (BET), respectively, confirming that hexadecyl trimethyl ammonium chloride (CTAC), ethylene diamine tetraacetic acid (EDTA) and 1,6-diaminohexane (DA) were successfully introduced into Na⁺-Mt. Comparing with stronger Zn²⁺ removal efficiency onto EDTA-Mt and DA-Mt dominated by forming complexes in the binary-component systems, CTAC–EDTA-Mt and CTAC–DA-Mt gained a huge edge in uptaking phenol controlled by layer partition. Factors containing the initial Zn²⁺/phenol concentration and the competitive adsorption where the Zn²⁺, Pb²⁺, Cd²⁺ and phenol/Zn²⁺, p-nitrophenol, phenylamine and phenol coexisted in the aqueous solution were shown in the paper. Furthermore, the desorption of Zn²⁺ and phenol on the CTAC–DA-Mt was investigated by series experiments under various conditions (with the type of chemical reagents, variable concentration of desorbent and contact time). The results showed HCl solution had higher efficiency on desorbing Zn²⁺ over phenol onto the CTAC–DA-Mt. CTAC–EDTA-Mt and CTAC–DA-Mt had potential applications in dealing with the wastewater where heavy metals and organic pollutants coexist.

本研究通过分批实验研究了阳离子表面活性剂和螯合剂改性的有机蒙脱土在水溶液中对二元组分，重金属和有机污染物的吸附能力。通过X射线衍射（XRD），傅立叶变换红外光谱（FTIR），比表面积（BET）分别分析了OMt的特征，证实了十六烷基三甲基氯化铵（CTAC），乙二胺四乙酸（EDTA）将1,6-二氨基己烷（DA）成功引入Na ⁺ -Mt。与更强的Zn ²⁺比较EDTA-Mt和DA-Mt的去除效率主要由二元体系中的复合物形成，CTAC-EDTA-Mt和CTAC-DA-Mt在吸收由层分配控制的苯酚方面具有巨大优势。含有Zn ²⁺ /苯酚的初始浓度以及竞争吸附的因素显示在水溶液中共存的Zn 2 ⁺，Pb 2 ⁺，Cd ²⁺和苯酚/ Zn ²⁺，对硝基苯酚，苯胺和苯酚。纸。此外，Zn ²⁺的解吸在各种条件下（通过化学试剂的类型，解吸剂的浓度和接触时间的变化），通过系列实验研究了CTAC-DA-Mt上的苯酚和苯酚。结果表明，HCl溶液对Zn ^2+的吸附比对苯酚的吸附具有更高的效率。CTAC-EDTA-Mt和CTAC-DA-Mt在处理重金属和有机污染物共存的废水中具有潜在的应用前景。