Journal
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
Volume 31, Issue 3, Pages 288-294Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/1536383X.2022.2146097
Keywords
Er(III); multi-wall carbon nanotubes; bacterial cellulose; silicon film; selectively adsorption
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This study successfully prepared a silicon-based modified film with high adsorption capacity and selective adsorption function for Er(III) by using a composite membrane constructed from modified bacterial cellulose and multi-wall carbon nanotubes, combined with ion imprinting technology. The experimental results showed that the adsorption efficiency of Er(III) can reach 92%.
Considering the economic benefits and environmental pollution, it is of great significance to recover rare earth elements from wastewater. In this article, the modified bacterial cellulose is the raw material, and multi-wall carbon nanotubes are added to construct together. The ion imprinting technology is introduced to prepare a silicon-based modified film for the recovery of Er(III) and selectively adsorption function of Er(III) in experiments. The maximum adsorption amount of modified carbon nanotube silicon bacterial cellulose composite imprinted membrane can reach 46.52 mg L-1, and the adsorption capacity is greatly improved compared to other methods that of the non-imprinted membrane. The adsorption efficiency of Er(III) can reach 92%.
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