Sining Zhu, Zhibo Yan, Yuzhuo Zhang, Fan Zhang, Xingli Zhu, Chen Xi
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引用次数: 0
摘要
近年来,离子印迹聚合物因其对目标离子的高选择性而备受关注并得到广泛应用。本研究以铅(II)离子为模板离子,聚酰胺-胺树枝状聚合物为固化剂,环氧树脂为载体,结合离子压印技术制备了铅(II)压印聚合物(Pb(II)-IIP)。通过系统吸附实验研究了吸附剂对铅(II)离子吸附性能的影响。通过傅立叶变换红外光谱、扫描电镜和其他表征技术进一步研究了吸附剂的组成。经计算,在 pH = 5 和 T = 318 K 条件下的最大吸附容量为 138.8 mg/g。在多种离子共存的情况下,Pb(II)-IIP 对 Pb(II) 的吸附具有很高的选择性。经过五个周期的实验后,铅(II)的去除率仍然超过 91%,这表明该物质具有良好的重复使用性。
Preparation, characterization and application of the Pb-ion-imprinted polymers based on epoxy resin and polyamide-amine dendrimers
In recent years, ion-imprinted polymers have gained significant attention and are extensively utilized owing to their high selectivity toward target ions. For this research, Pb(II) ions were used as the template ions, polyamide-amine dendrimers as the curing agent, epoxy resin as the carrier and combined with ion-imprinting technique in the preparation of Pb(II)-imprinted polymer (Pb(II)-IIP). Systematic adsorption experiments were used to investigate the impact of the adsorbent on the adsorption performance of Pb(II) ions. The composition of the adsorbent was further studied by FT-IR, SEM and other characterization techniques. The maximal adsorption capacity at pH = 5 and T = 318 K was calculated to be 138.8 mg/g. In the coexistence of multiple ions, the Pb(II)-IIP showed high selectivity for Pb(II) adsorption. Pb(II) was still removed at a rate of more than 91% after five cycles of experiments, indicating good reusability.
期刊介绍:
"Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad.
"Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."