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Reference type: Journal
Authors: Zhu JH, Liu Q, Liu JY, Chen RR, Zhang HS, Yu J, Zhang ML, Li RM, Wang J
Article Title: Novel Ion-Imprinted Carbon Material Induced by Hyperaccumulation Pathway for the Selective Capture of Uranium.
Publication date: 2018
Journal: ACS Applied Materials & Interfaces
Volume: 10
Issue: (34)
Page numbers: 28877-28886.
DOI: 10.1021/acsami.8b09022

Abstract: The development of nuclear energy is significant for resource sustainability. Uranium is the main nuclear fuel, and its effective absorption has captured the attention of researchers. In this study, the green technologies hyperaccumulation effect of the plant and ion-imprinted technology were used to prepare the uranium ion-imprinted hierarchically porous carbon material (II-HPC). At the same time, a nonimprinted hierarchically porous carbon (HPC) was prepared for comparison. The adsorption isotherm was fitted to the Langmuir model and maximum sorption capacity of II-HPC was 503.64 mg g-1 at 298 K. The kinetic data followed the pseudo-second-order model, indicating a dominant role of chemisorption. Initial studies were performed on a lab-scale simulated continuous-flow system for the adsorption kinetics testing of II-HPC in simulated seawater. The results showed that the amount of uranium adsorbed after 35 days was 0.379 mg g-1, which determined that II-HPC adsorbent is a potential material for enrichment of U(VI) from the seawater
Template and target information: uranyl ion, U(VI), uranium
Author keywords: hierarchical porous carbon, hyperaccumulation effect, ion-imprinted, simulated seawater, uranium(VI) adsorption

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