Chen Zhiming, Song Jiaojiao, Zhu Qingpeng, Li Zhiguo, Yang Renchun
School of Biological and Chemical Engineering, Anhui Polytechnic University Wuhu 241000 China
RSC Adv. 2019 Dec 6;9(69):40546-40552. doi: 10.1039/c9ra08037f. eCollection 2019 Dec 3.
Core-shell magnetic FeO@PVBC-TMT (FeO@polyvinylbenzyl chloride-trithiocyanuric acid) nanoparticles containing trithiocyanuric acid groups were fabricated and employed for the fast removal of heavy metals from an aquatic environment. The morphology, structure and properties of FeO@PVBC-TMT nanoparticles were characterized by a series of modern analytical tools. The adsorption behavior of the FeO@PVBC-TMT nanoparticles for heavy metals ions in aqueous solutions was investigated by batch experiments. The maximum removal capacities of the FeO@PVBC-TMT nanoparticles toward Mn, Ni, Cu, Cd and Pb ions were 127.4, 146.6, 180.5, 311.5, and 528.8 mg g, respectively. Importantly, it is found that Pb ions can be completely and quickly removed by the FeO@PVBC-TMT nanoparticles. The equilibrium was established within 6 min, and the removal efficiencies were found to be 99.9%, 99.8% and 99.5% for Pb ions at the initial concentrations of 100 mg L, 200 mg L and 300 mg L, respectively. It is hoped that the core-shell magnetic FeO@PVBC-TMT nanoparticles may find application in wastewater treatment.
制备了含有三聚硫氰酸基团的核壳磁性FeO@PVBC-TMT（FeO@聚氯乙烯苄基氯-三聚硫氰酸）纳米颗粒，并将其用于从水环境中快速去除重金属。通过一系列现代分析工具对FeO@PVBC-TMT纳米颗粒的形貌、结构和性能进行了表征。通过批量实验研究了FeO@PVBC-TMT纳米颗粒对水溶液中重金属离子的吸附行为。FeO@PVBC-TMT纳米颗粒对Mn、Ni、Cu、Cd和Pb离子的最大去除容量分别为127.4、146.6、180.5、311.5和528.8 mg/g。重要的是，发现FeO@PVBC-TMT纳米颗粒可以完全快速地去除Pb离子。在6分钟内达到平衡，当初始浓度分别为100 mg/L、200 mg/L和300 mg/L时，Pb离子的去除效率分别为99.9%、99.8%和99.5%。希望核壳磁性FeO@PVBC-TMT纳米颗粒能在废水处理中得到应用。
