The present work demonstrates functionalized chitosan as an ecofriendly substitute to the conventional costly substrates and monomers for simultaneous surface imprinting of salicylic acid (SA) and cadmium (Cd). Dual surface imprinted acrylamide functionalized chitosan based polymer (AGDMIP), with higher numbers of imprinted sites for SA and Cd was synthesized using acrylamide grafted chitosan, epichlorohydrin as crosslinker, Cd as template and 4 hydroxy benzoic acid (4HBA) as mimic template (supported by computational modeling). FTIR, SEM, XRD, BET surface area and TEM analysis confirmed successful preparation, mesoporous nature and surface imprinting of AGDMIP. The adsorption data could be fitted into Langmuir isotherm model with the maximum adsorption capacity of 45.77 mg g^-1 (SA) and 53.42 mg g^-1 (Cd). Temkin and Intraparticle diffusion models confirmed the chemical nature and presence of imprint sites within AGDMIP respectively. AGDMIP could be reused for six cycles and exhibited good removal efficiency in real samples.

目前的工作表明功能化的壳聚糖可以替代传统昂贵的底物和单体，同时对水杨酸（SA）和镉（Cd）进行表面压印。以丙烯酰胺接枝的壳聚糖，环氧氯丙烷为交联剂，Cd为模板和4羟基苯甲酸（4HBA）为模拟模板，合成了具有较高SA和Cd印迹位点的双表面印迹丙烯酰胺官能化壳聚糖基聚合物（AGDMIP）。计算建模）。FTIR，SEM，XRD，BET表面积和TEM分析证实了AGDMIP的成功制备，介孔性质和表面印迹。吸附数据可以拟合为Langmuir等温模型，最大吸附容量为45.77 mg g ^-1（SA）和53.42 mg g^-1（Cd）。Temkin和粒子内扩散模型分别证实了AGDMIP中的化学性质和印迹位点的存在。AGDMIP可以重复使用六个周期，并且在实际样品中显示出良好的去除效率。