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author:

Ye, X. (Ye, X..) [1] | Liu, J. (Liu, J..) [2] | Chen, X. (Chen, X..) [3] | Chen, D. (Chen, D..) [4] | Qian, Z. (Qian, Z..) [5] | Chen, J. (Chen, J..) [6] | Lin, C. (Lin, C..) [7]

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Scopus

Abstract:

Extracting uranium from seawater has become an important method to supplement the nuclear industry. Herein, we introduce a simple route to load conjugated microporous polymers onto collagen fiber membranes, resulting in a novel membrane adsorbent material (CMPA-F/CFM) for uranium capture. Its Langmuir adsorption capacity reaches 304.9 mg·g−1 (at 318 K), with fast adsorption kinetic of 60 min, and excellent adsorption selectivity with Kd = 4.69 × 104 mL·g−1 under the temperature of 298 K, initial concentration of 50 mg·L-1, and pH = 7, thus allowing a satisfactory adsorption performance in a 7-day real ocean experiment with a uranium adsorption capacity of 1.25 mg·g−1. Furthermore, in continuous dynamic adsorption experiments, CMPA-F/CFM could treat up to 19.0 L·g−1 of low-enriched uranium (LEU) solution (1 mg·L-1), with a uranium removal rate of up to 87.5 % (10 L of seawater). This study demonstrates broad potential application of membrane adsorption in extraction of low-enriched uranium. © 2024 Elsevier Ltd

Keyword:

Collagen fiber membrane Conjugated microporous polymers Seawater Selectivity Uranium extraction

Community:

  • [ 1 ] [Ye X.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Liu J.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Chen X.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Chen D.]Fujian Radiation Environment Supervision Station, Fuzhou, 350013, China
  • [ 5 ] [Qian Z.]Fujian Radiation Environment Supervision Station, Fuzhou, 350013, China
  • [ 6 ] [Chen J.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Lin C.]College of Environmental and Safety Engineering, Fuzhou University, Fuzhou, 350108, China

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Source :

Chemical Engineering Science

ISSN: 0009-2509

Year: 2024

Volume: 295

4 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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