Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution

Bigui Wei; Xiabing Cheng; Gang Wang; Hua Li; Xiaosan Song; Liang Dai

doi:10.3390/app9071390

Applied Sciences (Apr 2019)

Graphene Oxide Adsorption Enhanced by Attapulgite to Remove Pb (II) from Aqueous Solution

Bigui Wei,
Xiabing Cheng,
Gang Wang,
Hua Li,
Xiaosan Song,
Liang Dai

Affiliations

Bigui Wei: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Xiabing Cheng: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Gang Wang: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Hua Li: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Xiaosan Song: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Liang Dai: School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

DOI: https://doi.org/10.3390/app9071390
Journal volume & issue: Vol. 9, no. 7
p. 1390

Abstract

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To improve the adsorption and separation efficiency of lead-containing wastewater by graphene oxide (GO), attapulgite (ATP) was used through a simple hydrothermal reaction. The prepared GO was characterized by SEM, TEM, FTIR, and XPS. The adsorption properties of the prepared GO were investigated. The maximum adsorption capacity of Pb2+ on as-prepared GO at pH 5 and 25 °C was 450.9 mg/g. It is concluded that the as-prepared GO can be used as a high-efficiency adsorbent for lead-containing wastewater.

Published in Applied Sciences

ISSN: 2076-3417 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General); Science: Biology (General); Science: Physics; Science: Chemistry
Website: http://www.mdpi.com/journal/applsci

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