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author:

Zhang, Z.-H. (Zhang, Z.-H..) [1] | Zhang, W. (Zhang, W..) [2] | Xu, X.-P. (Xu, X.-P..) [3] (Scholars:许小平) | Ou, M.-R. (Ou, M.-R..) [4]

Indexed by:

Scopus CSCD

Abstract:

Uranium in the environment can damage human health and ecosystem. There is a need for excellent adsorbents to remove U(VI) from aqueous solutions. Here we synthesized a novel β-cyclodextrin/poly(acrylic acid)/permutite (CAP) hydrogel composite by a simple method. Physicochemical characterizations of the materials were conducted by XRD, FTIR, SEM, EDX, and TGA. The effect of pH value, contact time, initial U(VI) concentration, and temperature were researched. A pseudo-second-order kinetic model, intra-particle diffusion model, and Langmuir isotherm model were used to describe the U(VI) adsorption behavior, and the maximum adsorption capacity of U(VI) was 833.33 mg/g at 25 ℃. Thermodynamic analysis showed that the adsorption process of U(VI) was endothermic and spontaneous. Furthermore, the excellent reusability indicated that CAP hydrogel composite could be potentially used as a promising sorbent for the removal of U (VI) in wastewater. © 2020 Fujian Institute of Research of the Structure of Matter. All rights reserved.

Keyword:

Acrylic acid; Adsorption; Hydrogel; U(VI); β-cyclodextrin

Community:

  • [ 1 ] [Zhang, Z.-H.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Zhang, W.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Xu, X.-P.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 4 ] [Ou, M.-R.]College of Chemistry, Fuzhou University, Fuzhou, 350116, China
  • [ 5 ] [Ou, M.-R.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China

Reprint 's Address:

  • 许小平

    [Xu, X.-P.]College of Chemistry, Fuzhou University, College of Chemistry, Fuzhou UniversityChina

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Source :

Jiegou Huaxue

ISSN: 0254-5861

CN: 35-1112/TQ

Year: 2020

Issue: 10

Volume: 39

Page: 1795-1806

0 . 8 9 3

JCR@2020

5 . 9 0 0

JCR@2023

ESI HC Threshold:160

JCR Journal Grade:4

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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