In this study, 2-mercaptopropionic acid was incorporated into hydrous zirconium oxide matrix to prepare 2-mercaptopropionic acid/ hydrous zirconium oxide (MPA/HZO) composite and applied to eliminate Pb(II) from aqueous environment. MPA/HZO was characterized by FTIR, TGA-DTA and SEM with EDX. Response surface methodology (RSM) was utilized for optimizing the independent variables affecting the uptake of Pb(II)). The maximum efficiency was reached at an equilibrating time of 40 min. At the optimum conditions (pH:6.8; contact time: 40 min; adsorbent dose: 0.016 g; initial concentration: 60 mg/L), 99.37% Pb(II) was successfully eliminated. Nonlinear regression analysis was applied for the investigation of isotherm and kinetic equations. Langmuir isotherm model with R² > 0.99 was best fit model to demonstrate the adsorption of Pb(II) onto MPA/HZO. The maximum Langmuir adsorption capacity (q_m) was 128.50 mg/g. Pseudo-second order kinetic model with R² > 0.999 illustrated its best fitting to the kinetic data.

在这项研究中，将2-巯基丙酸掺入含水氧化锆基质中，以制备2-巯基丙酸/含水氧化锆（MPA / HZO）复合材料，并用于从水性环境中消除Pb（II）。通过FTIR，TGA-DTA和带有EDX的SEM对MPA / HZO进行表征。响应面方法（RSM）用于优化影响Pb（II）吸收的自变量。在40分钟的平衡时间内达到最大效率。在最佳条件下（pH：6.8；接触时间：40分钟；吸附剂剂量：0.016 g；初始浓度：60 mg / L），成功消除了99.37％的Pb（II）。非线性回归分析用于等温线和动力学方程的研究。带R ^2的Langmuir等温模型 > 0.99是最佳拟合模型，以证明Pb（II）在MPA / HZO上的吸附。最大的朗缪尔吸附容量（q _m）为128.50 mg / g。R ²  > 0.999的伪二级动力学模型说明了其与动力学数据的最佳拟合。