Instantaneous integration of magnetite nanoparticles on graphene oxide assisted by ultrasound for efficient heavy metal ion retrieval

Jeseung Yoo; Hyo-Sun Kim; Sang-Yul Park; Suyong Kwon; Joohyun Lee; Jaseung Koo; Young-Soo Seo

doi:10.1016/j.ultsonch.2020.104962

Instantaneous integration of magnetite nanoparticles on graphene oxide assisted by ultrasound for efficient heavy metal ion retrieval

Ultrason Sonochem. 2020 Jun:64:104962. doi: 10.1016/j.ultsonch.2020.104962. Epub 2020 Jan 9.

Authors

Jeseung Yoo¹, Hyo-Sun Kim¹, Sang-Yul Park¹, Suyong Kwon², Joohyun Lee², Jaseung Koo³, Young-Soo Seo⁴

Affiliations

¹ Department of Nanotechnology and Advanced Materials Engineering, Sejong Polymer Research Center, Sejong University, Seoul 05006, Republic of Korea.
² Division of Physical Metrology, Korea Research Institute of Standards and Science, Daejeon 34113, Republic of Korea.
³ Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, Republic of Korea. Electronic address: jkoo@cnu.ac.k.
⁴ Department of Nanotechnology and Advanced Materials Engineering, Sejong Polymer Research Center, Sejong University, Seoul 05006, Republic of Korea. Electronic address: ysseo@sejong.ac.kr.

PMID: 32006933
DOI: 10.1016/j.ultsonch.2020.104962

Abstract

We fabricated a magnetite nanoparticle-graphene oxide (GO) hybrid via a non-chemical and one-step process assisted by ultrasound in an aqueous solution where the nanoparticle attached to the hydrophobic region on graphite oxide (multi-layered GO) which, at the same time, was exfoliated. Unlike chemical methods such as precipitation, oxygen-containing functional groups on GO have not been consumed or reduced during the hybridization, leading that this hybrid exhibited good water solubility and high adsorption capacity for heavy metal ions such as Pb(II) and Au(III). After the adsorption, the hybrid was instantly collected using a magnet. This method can be useful for hybridizing various nanoparticles with GO.

Keywords: Graphene oxide; Hybridization; Hydrophobic interaction; Magnetite nanoparticle; Ultrasound.