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author:

Ye, Xiaoxia (Ye, Xiaoxia.) [1] (Scholars:叶晓霞) | Liu, Juan (Liu, Juan.) [2] | Chen, Xueying (Chen, Xueying.) [3] | Chen, Dongjun (Chen, Dongjun.) [4] | Qian, Zhen (Qian, Zhen.) [5] | Chen, Jie (Chen, Jie.) [6] (Scholars:陈杰) | Lin, Chunxiang (Lin, Chunxiang.) [7] (Scholars:林春香)

Indexed by:

EI Scopus SCIE

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 center dot g-(- 1) (at 318 K), with fast adsorption kinetic of 60 min, and excellent adsorption selectivity with Kd d = 4.69 x 104 4 mL center dot g-(- 1) under the temperature of 298 K, initial concentration of 50 mg center dot L-1,-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 center dot g-1.(-1 ). Furthermore, in continuous dynamic adsorption experiments, CMPA-F/CFM could treat up to 19.0 L center dot g(-1-) 1 of low-enriched uranium (LEU) solution (1 mg center dot L-1),-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.

Keyword:

Collagen fiber membrane Conjugated microporous polymers Seawater Selectivity Uranium extraction

Community:

  • [ 1 ] [Ye, Xiaoxia]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Liu, Juan]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Chen, Xueying]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Lin, Chunxiang]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Chen, Jie]Fuzhou Univ, Coll Chem Engn, Fuzhou 350108, Peoples R China
  • [ 6 ] [Chen, Dongjun]Fujian Radiat Environm Supervis Stn, Fuzhou 350013, Peoples R China
  • [ 7 ] [Qian, Zhen]Fujian Radiat Environm Supervis Stn, Fuzhou 350013, Peoples R China

Reprint 's Address:

  • [Lin, Chunxiang]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350108, Peoples R China;;[Chen, Jie]Fuzhou Univ, Coll Chem Engn, Fuzhou 350108, Peoples R 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: 3

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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