He Yan, Fu Xiaolei, Li Bo, Zhao Haitao, Yuan Dingzhong, Na Bing
Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China.
College of Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
ACS Omega. 2022 May 18;7(21):17941-17947. doi: 10.1021/acsomega.2c01250. eCollection 2022 May 31.
It is of great significance to develop new materials for efficient capture cationic dyes methylene blue (MB) and malachite green (MG). In this work, a novel triptycene-based porous organic polymer with abundant thiol groups (TPP-SH) was prepared successfully by postmodification with a high surface area and robust triptycene-based porous organic polymer (TPP). The obtained TPP-SH exhibited a high surface area, good porosity, and good thermal stability. In addition, TPP-SH was highly effective at capturing MB and MG from aqueous solution because of the abundant thiols in its hierarchical structure. Under optimal adsorption conditions, the maximum adsorption capacities of MB and MG calculated by the Langmuir model at room temperature were 1146.3 and 689.6 mg g, respectively. These values are higher than those of many reported materials. The MB and MG adsorption rates were 0.0154 and 6.69 × 10 mg g min, respectively. Furthermore, the polymer TPP-SH had a good recycling performance after adsorption-desorption at least five times. Therefore, the TPP-SH exhibited a high adsorption capacity, fast adsorption kinetics, and easy-recycling behavior, providing a new avenue for the preparation of green functionalized adsorbents with good performance for water decontamination.
开发用于高效捕获阳离子染料亚甲基蓝（MB）和孔雀石绿（MG）的新材料具有重要意义。在这项工作中，通过对具有高比表面积和坚固性的三蝶烯基多孔有机聚合物（TPP）进行后修饰，成功制备了一种具有丰富硫醇基团的新型三蝶烯基多孔有机聚合物（TPP-SH）。所获得的TPP-SH具有高比表面积、良好的孔隙率和良好的热稳定性。此外，由于其分级结构中存在丰富的硫醇，TPP-SH在从水溶液中捕获MB和MG方面非常有效。在最佳吸附条件下，通过Langmuir模型计算得出，室温下MB和MG的最大吸附容量分别为1146.3和689.6 mg g。这些值高于许多已报道材料的值。MB和MG的吸附速率分别为0.0154和6.69×10 mg g min。此外，聚合物TPP-SH在至少五次吸附-解吸循环后具有良好的循环性能。因此，TPP-SH表现出高吸附容量、快速吸附动力学和易于循环利用的特性，为制备具有良好水净化性能的绿色功能化吸附剂提供了一条新途径。
