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- Title
Construction of an egg-like DTAB/SiO<sub>2</sub> composite for the enhanced removal of uranium.
- Authors
Cheang, Tuckyun; Zhou, Hongyan; Lin, Weihao; Zheng, JiaJun; Yu, Liang; Zhang, Yongcheng
- Abstract
For the past few years, the environmental safety problems of radioactive nuclides caused wide public concern. In this work, the dodecyl trimethyl ammonium bromide-modified silicon dioxide composite (DTAB/SiO2) was synthesized for the elimination of uranium. The dodecyl trimethyl ammonium bromide can decorate the surface of the silicon dioxide and change its surface topography, which can offer more active sites and functional groups for the combination of U(VI). The removal capacity of U(VI) on DTAB/SiO2 reached 78.1 mg/g, which was greater than that of the silicon dioxide nanopowder. In the adsorption process, the surface oxygen-containing functional groups formed surface complexation with uranium. The results may provide helpful content to eliminate U(VI) and expand the application of surfactant in radioactive nuclide cleanup.
- Subjects
RADIOISOTOPES; URANIUM; SILICA; SILICON surfaces; SURFACE topography; FUNCTIONAL groups; URANIUM compounds
- Publication
Environmental Science & Pollution Research, 2022, Vol 29, Issue 42, p63294
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-022-20260-8