(GO) modified with magnetite nanoparticles (Fe3O4NPs) for removing Cu(II) ions from aqueous solutions. Moreover, the recovered Cu(II)-based material was recycled as a catalyst for the homocoupling of a series of alkynes. The adsorption behavior of magnetic GO-based materials towards Cu(II) ions from aqueous solutions was studied as a function of the pH value and the contact time and it was observed that
本文研究了用磁
铁矿纳米粒子(Fe 3 O 4 NPs)改性的氧化
石墨烯片(GO)的制备,以去除
水溶液中的Cu(II)离子。此外,回收的基于Cu(II)的材料被循环用作一系列
炔烃均偶联的催化剂。研究了磁性GO基材料对
水溶液中Cu(II)离子的吸附行为与pH值和接触时间的关系,发现磁性GO基吸收剂可以快速从
水溶液中分离出来。通过使用外部磁场。Cu(II)离子的平衡吸附容量值高达3.808±0.125 mmol.g -1在中性条件下。此外,还证明了生成的[GO-E
DA-
CAC @ Fe 3 O 4 NPs] -BPED-Cu(II)材料对
苯乙炔均相偶联为1,4-二苯基丁-1,3-二炔的催化活性。产率高达99%。重要的是,[GO-E
DA-
CAC @ Fe 3 O 4 NPs] -BPED-Cu(II)负载的催化剂连续重复使用了十五次,而活性没有明显损失。