Synthesis of FeO@PVBC-TMT nanoparticles for the efficient removal of heavy metals ions

• Published in: RSC advances 2019-12, Vol.9 (69), p.4546-4552
• Main Authors: Chen, Zhiming, Song, Jiaojiao, Zhu, Qingpeng, Li, Zhiguo, Yang, Renchun
• Format: Article
• Language: English
• ISSN: 2046-2069
• DOI: 10.1039/c9ra08037f

Core-shell magnetic Fe 3 O 4 @PVBC-TMT (Fe 3 O 4 @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 Fe 3 O 4 @PVBC-TMT nanoparticles were characterized by a series of modern analytical tools. The adsorption behavior of the Fe 3 O 4 @PVBC-TMT nanoparticles for heavy metals ions in aqueous solutions was investigated by batch experiments. The maximum removal capacities of the Fe 3 O 4 @PVBC-TMT nanoparticles toward Mn 2+ , Ni 2+ , Cu 2+ , Cd 2+ and Pb 2+ ions were 127.4, 146.6, 180.5, 311.5, and 528.8 mg g −1 , respectively. Importantly, it is found that Pb 2+ ions can be completely and quickly removed by the Fe 3 O 4 @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 2+ ions at the initial concentrations of 100 mg L −1 , 200 mg L −1 and 300 mg L −1 , respectively. It is hoped that the core-shell magnetic Fe 3 O 4 @PVBC-TMT nanoparticles may find application in wastewater treatment. Core-shell Fe 3 O 4 @PVBC-TMT nanoparticles were fabricated and served as a valid magnetic adsorbent for the removal of heavy metals ions.