E3S Web Conf.
Volume 350, 2022International Conference on Environment, Renewable Energy and Green Chemical Engineering (EREGCE 2022)
|Number of page(s)||5|
|Section||Green Chemical Engineering|
|Published online||09 May 2022|
High Uranium Extraction by Polydopamine Functionalized MXene from Aqueous Solutions
School of Resources and Environment, Anhui Agricultural University, Hefei 230036, China
2 School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
3 Anhui Academy of Environmental Science Research, Hefei, China
* Corresponding author: firstname.lastname@example.org
MXenes were outstanding materials for aqueous environment remediation, MXenes with a high capacity for radionuclides uranium (U(VI)) remains a challenge. In this study, a noval polydopamine functionalized MXene (defined as MXene@PDA) was successfully synthesised and evaluated for the aggregation towards U(VI) from wastewater. Versatile PDA owing functional groups provided more sites to capture contaminant ions. The mechanism research with MXene@PDA was explored by batch experiments toghther with the XPS analyses. The results revealed MXene@PDA with abundant functional groups exhibited superior elimination ability (90.4 mg/g) at pH = 5.0. The mechanism of U(VI) on MXene@PDA was primarily ascribed to the surface complexation force between the UO22+ and -OH, NH2 groups. The PDA modification of MXene materials are proved to be excellent materials for the extraction of radionuclides in the aqueous solution.
© The Authors, published by EDP Sciences, 2022
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