Zhou Meirong, Yang Tianyu, Hu Weibin, He Xiaohong, Xie Junni, Wang Pan, Jia Kun, Liu Xiaobo
Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
Nanomaterials (Basel). 2019 Jul 11;9(7):1001. doi: 10.3390/nano9071001.
Metallopolymeric superstructures (MPS) are hybrid functional materials that find wide applications in environmental, energy, catalytic and biomedical-related scenarios, while their fabrication usually suffers from the complicated polymerization between monomeric ligands and metal ions. In this work, we have developed a facile one-step protocol to fabricate metallopolymeric superstructures with different morphology including nanospheres, nanocubes, nanorods, and nanostars for environmental remediation application. Specifically, we have firstly synthesized the amphiphilic block copolymers (BCP) bearing hydrophobic aromatic backbone and hydrophilic pendent carboxylic/sulfonic groups, which have been subsequently transformed into MPS via the metal ions mediated self-assembly in mixed solution of dimethylformamide (DMF) and HO. Based on SEM, FTIR, XRD and XPS characterization, we have revealed that the fine morphology and condensed structures of MPS can be modulated via the metal ions and BCP concentration, and the obtained MPS can be employed as efficient adsorbents for the removal of methylene blue with maximum adsorption capacity approaching 936.13 mg/g.
金属聚合物超结构（MPS）是一种杂化功能材料，在环境、能源、催化及生物医学相关领域有着广泛应用，但其制备通常受制于单体配体与金属离子之间复杂的聚合反应。在本工作中，我们开发了一种简便的一步法协议，用于制备具有不同形态（包括纳米球、纳米立方体、纳米棒和纳米星）的金属聚合物超结构，以用于环境修复应用。具体而言，我们首先合成了带有疏水芳香主链和亲水侧链羧酸/磺酸基团的两亲性嵌段共聚物（BCP），随后通过金属离子在二甲基甲酰胺（DMF）和水的混合溶液中介导的自组装将其转化为MPS。基于扫描电子显微镜（SEM）、傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）和X射线光电子能谱（XPS）表征，我们揭示了MPS的精细形态和凝聚结构可通过金属离子和BCP浓度进行调控，且所制备的MPS可作为高效吸附剂用于去除亚甲基蓝，最大吸附容量接近936.13 mg/g。
