In this investigation, the capability of mechanochemically synthesized silver (I) coordination polymer [Ag(I)-CP] for simultaneous removal of Congo red (CR) and Indigo carmine (IC) from aqueous solutions was described. The structure of the Ag(I)-CP adsorbent was characterized by FT-IR and PXRD instrumental techniques. The significant and interaction of parameters (pH, adsorbent mass, ultrasound time and CR and IC initial concentration) on their removal efficiency were studied by central composite design (CCD) associated with response surface methodology (RSM). The maximum adsorption was obtained at variables set at pH = 6, 15 mg Ag(I)-CP, 4 min sonication time and 12 mg L⁻¹ of both dyes at room temperature. Under the optimized parameters, an adsorption efficiency of 99.5%, with relative standard deviation of 1.7%, was obtained via five replicated measurements at center. The results indicate that the R² values were >0.995, while the adjusted R² (0.9969 and 0.9971 for CR and IC respectively) values are in close conformity with R². The equilibrium data fitted better to Langmuir model than Freundlich one with minimum error, while Langmuir adsorption capacity assign to monolayer were 60.240 and 52.360 mg g⁻¹ for CR and IC, respectively. The kinetic studies demonstrated that the adsorption process followed pseudo-second-order kinetics.

在这项研究中，描述了机械化学合成银（I）配位聚合物[Ag（I）-CP]从水溶液中同时去除刚果红（CR）和靛蓝胭脂红（IC）的能力。通过FT-IR和PXRD仪器技术对Ag（I）-CP吸附剂的结构进行了表征。通过与响应表面方法（RSM）相关的中央复合设计（CCD）研究了参数（pH，吸附剂质量，超声时间以及CR和IC初始浓度）对去除效率的显着影响和相互作用。在设定为pH = 6、15 mg Ag（I）-CP，4分钟超声处理时间和12 mg L ^-1的变量下获得最大吸附室温下两种染料的混合 在优化的参数下，通过在中心进行五次重复测量，获得了99.5％的吸附效率和1.7％的相对标准偏差。结果表明，R ²值> 0.995，而调整后的R ^2值（CR和IC分别为0.9969和0.9971）与R ²高度吻合。Langmuir模型的平衡数据比Freundlich 1拟合得更好，误差最小，而分配给单层的Langmuir吸附量对于CR和IC分别为60.240和52.360 mg g ^-1。动力学研究表明，吸附过程遵循伪二级动力学。