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author:

Zhang, Qiyun (Zhang, Qiyun.) [1] | Li, Jiaqi (Li, Jiaqi.) [2] | Lin, Qilang (Lin, Qilang.) [3] (Scholars:林起浪) | Fang, Changqing (Fang, Changqing.) [4]

Indexed by:

Scopus SCIE

Abstract:

A stiff zinc oxide/carbon foam (ZnO/CF) composite as a desirable adsorbent for heavy metal ions was innovatively designed and fabricated by loading ZnO particles into a carbon foam with capsule-like second-level macropores. The features of the resulting composite were characterized by FESEM, XRD, BET, FTIR, and XPS. The effects of adsorption parameters on the Pb(II), Cr(III), and Cu(II) ions removal were studied through batch experiments. Results show that the ZnO/CF composite possesses a second-level macroporous structure filled ZnO particles, which has both mesoporous structure and Zn-O-C bond with the strongly synergistic effect. And meanwhile, it has a relatively high compression strength of 2.18 MPa at a density of 0.18 g cm(-3). The experimental maximum adsorption capacities for Pb(II), Cr(III), and Cu(II) ions reach 170.85 mg g(-1) 168.74 mg g(-1), and 104.61 mg g(-1) with relatively high partition coefficients of 5.803 mg g(-1) mu M-1, 1.169 mg g(-1) mu M-1, and 0.648 mg g(-1) mu M-1, respectively. The experimental data are in accordance with Langmuir isotherm and pseudo-second-order kinetic model. Moreover, the composite still exhibits a good adsorption performance even after five cycles.

Keyword:

Adsorption Carbon foam composite Heavy metal ions Regeneration Zinc oxide

Community:

  • [ 1 ] [Zhang, Qiyun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 2 ] [Li, Jiaqi]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 3 ] [Lin, Qilang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 4 ] [Fang, Changqing]Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Peoples R China

Reprint 's Address:

  • 林起浪

    [Lin, Qilang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China;;[Fang, Changqing]Xian Univ Technol, Fac Printing Packing Engn & Digital Media Technol, Xian 710048, Peoples R China

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Source :

ENVIRONMENTAL RESEARCH

ISSN: 0013-9351

Year: 2020

Volume: 188

6 . 4 9 8

JCR@2020

7 . 7 0 0

JCR@2023

ESI Discipline: ENVIRONMENT/ECOLOGY;

ESI HC Threshold:159

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 27

SCOPUS Cited Count: 31

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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