Peñas-Sanjuán Antonio, García-Gallarín Celeste, Godino-Salido María L, López-Garzón Rafael, Melchionna Michele, Melguizo Manuel
Department of Inorganic and Organic Chemistry, Faculty of Science, University of Jaén, 23071 Jaén, Spain.
Department of Chemical and Pharmaceutical Sciences, Center for Energy, Environment and Transport Giacomo Ciamician and INSTM Trieste Research Unit, University of Trieste, 34127 Trieste, Italy.
Polymers (Basel). 2025 Mar 15;17(6):786. doi: 10.3390/polym17060786.
The anion-complexation mechanism and anion-adsorption capacity of a hybrid material based on hyperbranched polyethyleneimine (HBPEI) covalently bonded onto an activated carbon (AC) is presented. The anion-scavenger behavior of this hybrid material toward CrO, PO, AsO and HgCl was explored by direct potentiometric and adsorption measurements, which revealed a novel approach to predict the interactions between the supported polymeric complexing units and the different anions. The results were analyzed by considering the reactivity data of the HBPEI/anion (HBPEI free in solution) and AC-HBPEI/anion systems. The results corroborated that the AC-HBPEI hybrid material is an excellent anion-complexing material, whose anion adsorption ability is defined by the complexing properties of the HBPEI molecules toward the anions. This assessment provides a straightforward tool to determine the type and strength of the interactions involved in supported polymer-based/anion systems, which can provide valuable information for predicting and designing efficient energy and scavenger materials.
本文介绍了一种基于共价键合在活性炭（AC）上的超支化聚乙烯亚胺（HBPEI）的杂化材料的阴离子络合机制和阴离子吸附能力。通过直接电位滴定法和吸附测量研究了这种杂化材料对CrO、PO、AsO和HgCl的阴离子清除行为，揭示了一种预测负载型聚合物络合单元与不同阴离子之间相互作用的新方法。通过考虑HBPEI/阴离子（溶液中游离的HBPEI）和AC-HBPEI/阴离子体系的反应性数据对结果进行了分析。结果证实，AC-HBPEI杂化材料是一种优异的阴离子络合材料，其阴离子吸附能力由HBPEI分子对阴离子的络合性质决定。该评估提供了一种直接的工具，用于确定负载型聚合物基/阴离子体系中相互作用的类型和强度，可为预测和设计高效能量及清除材料提供有价值的信息。
