Surface modification of hollow magnetic Fe3O4@NH2-MIL-101(Fe) derived from metal-organic frameworks for enhanced selective removal of phosphates from aqueous solution.
Surface modification of hollow magnetic Fe3O4@NH2-MIL-101(Fe) derived from metal-organic frameworks for enhanced selective removal of phosphates from aqueous solution.
复制标题
金属有机骨架中空磁性 Fe3O4@NH2-MIL-101(Fe) 的表面修饰，用于增强选择性去除水溶液中的磷酸盐
DOI：
10.1038/srep30651
复制
发表时间：
2016-07-29
影响因子：
4.6
通讯作者：
Guo H
中科院分区：
文献类型：
--
作者：
Li Y;Xie Q;Hu Q;Li C;Huang Z;Yang X;Guo H
通过一种简单的方法制备了金属有机骨架的空心磁性Fe3O4@NH2-MIL-101（Fe）。通过调节合成参数，控制了样品的形貌。随着暴露时间的延长，磷酸盐浓度从初始的0.60 mg.L-1急剧下降到0.045 mg.L-1。最显着的参数，如接触时间，吸附剂剂量，pH值，以及吸附容量之间的相关性进行了优化，这些参数对磷酸盐的去除效率的影响进行了研究。磁性中空材料的表面功能化是一种精心设计的方法，可以弥合高吸附活性与优异的分离和回收水处理系统中磷酸盐之间的差距。因此，它表现出显着的选择性去除磷酸盐的水溶液。
Hollow magnetic Fe3O4@NH2-MIL-101(Fe) derived from metal-organic frameworks are fabricated through a general facile strategy. The synthetic parameters are regulated to control the shape of the as-prepared samples. The concentration of phosphates decreased sharply from the initial 0.60 to 0.045 mg.L−1with the exposure time in 50 minutes. The correlation between the most significant parameters such as contact time, adsorbent dose, pH, as well as adsorption capacities was optimized and the effects of these parameters on the removal efficiency of phosphates were investigated. Surface functionalization of magnetic hollow materials is a well-designed way to bridge the gap between high adsorption activity, excellent separation and recovery of phosphates from the water treatment system. Therefore, it exhibits a remarkable selective removal of phosphates from aqueous solution.