Preparation and Adsorption Performance of Efficient Adsorbent for Heavy Metal Copper(II) Using Graphene‐Oxide‐Based Composites | Zendy

Liu Handong | Zendy; Guo Jianye | Zendy; Zhou Yihua | Zendy; Qian Jun | Zendy

Premium

Preparation and Adsorption Performance of Efficient Adsorbent for Heavy Metal Copper(II) Using Graphene‐Oxide‐Based Composites

Author(s) -

Liu Handong,

Guo Jianye,

Zhou Yihua,

Qian Jun

Publication year - 2020

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.202003189

Subject(s) - adsorption , graphene , carboxymethyl cellulose , materials science , oxide , copper , metal , chemical engineering , imine , chemistry , organic chemistry , nanotechnology , metallurgy , sodium , catalysis , engineering

Graphene oxide/polyethylene imine (GO/PEI) and graphene oxide/polyethylene imine/carboxymethyl cellulose (GO/PEI/CMC), these two kinds of composite adsorbent materials for heavy metal Cu 2+ were prepared by cross‐linking and graft copolymerization, and the GO was obtained by an improved method of Hummers in this work. The adsorption properties of GO, GO/PEI and GO/PEI/CMC on Cu 2+ were compared and analyzed with the initial pH value of solution, adsorption time, initial concentration of Cu 2+ and adsorbent dosage as the indicators. The results showed that the optimal adsorption pH of GO/PEI and GO/PEI/CMC for Cu 2+ were 5.0∼5.5; both GO/PEI and GO/PEI/CMC reached adsorption equilibrium in 195 min; when the adsorption is saturated, compared with the maximum adsorption capacity of GO (112.91 mg⋅g −1 ), the maximum adsorption capacity of GO/PEI and GO/PEI/CMC for Cu 2+ reaches 294.41 mg g −1 and 302.04 mg g −1 , respectively. Moreover, GO/PEI/CMC is more convenient for solid‐liquid separation after adsorption, which is a kind of adsorption material with more practical application potential.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research