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石英对Cu2+、Pb2+、Zn2+、Cd2+、和Ni2+等二价重金属离子的吸附等温线研究表明，石英对重金属离子的吸附反应可用Freudlich方程很好地进行描述，拟合曲线相关系数（r）＞0.96；吸附反应以形成金属离子单配位形态为主，只是Cu2+、Zn2+和Ni2+等三种离子有一部分双配位形态生成。同时，利用表面配位理论模式对实验结果进行拟合，其结果为表观表面配位常数lgKM=2.2—3.3，且KCd≥KPb＞KZn＞KNi≥KCu；lgβM=5.9－6.8，且βNi＞βZn＞βCu。可见，离子对石英表面的亲合力强度大小顺序是Cd＞Pb＞Zn＞Ni＞Cu。表现表面配位常数的大小主要由离子玻恩水化系数（△Ωr，v）决定，但受离子水解常数的影响。
Quartz adsorption of Cu2 +, Pb2 +, Zn2 +, Cd2 +, Ni2 + and other divalent heavy metal ions adsorption isotherm studies showed that quartz adsorption of heavy metal ions can be Freudlich equation well described the fitting curve correlation coefficient (r)> 0.96 ; Adsorption reaction to form a single coordination form of metal ions, only Cu2 +, Zn2 + and Ni2 + ions have some of the three kinds of bidentate forms generated. At the same time, the surface coordination theory model was used to fit the experimental results. The results showed that the apparent surface coordination constants lgKM = 2.2-3.3 and KCd≥KPb> KZn> KNi≥KCu; lgβM = 5.9-6.8, and βNi> βZn> βCu. It can be seen that the intensity order of the affinity of ions on the quartz surface is Cd> Pb> Zn> Ni> Cu. The size of the surface coordination constant is mainly determined by the ionic Born hydration coefficient (△ Ωr, v), but is affected by the ionic hydrolysis constant.