Layer structured graphite oxide as a novel adsorbent for humic acid removal from aqueous solution

Hartono, T., Wang, S.B., Ma, Q. and Zhu, Z.H. (2009) Layer structured graphite oxide as a novel adsorbent for humic acid removal from aqueous solution. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 333 1: 114-119. doi:10.1016/j.jcis.2009.02.005


Author Hartono, T.
Wang, S.B.
Ma, Q.
Zhu, Z.H.
Title Layer structured graphite oxide as a novel adsorbent for humic acid removal from aqueous solution
Journal name JOURNAL OF COLLOID AND INTERFACE SCIENCE   Check publisher's open access policy
ISSN 0021-9797
Publication date 2009-05-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jcis.2009.02.005
Open Access Status Not yet assessed
Volume 333
Issue 1
Start page 114
End page 119
Total pages 6
Editor Wasan, Darsh, T.
Place of publication United States
Publisher Academic Press
Language eng
Subject C1
090499 Chemical Engineering not elsewhere classified
970109 Expanding Knowledge in Engineering
Abstract Layer structured graphite oxide (GO) was prepared from graphite using the Hummers-Offeman method, characterised using N-2 adsorption, XRD, XPS, SEM(TEM), and FT-IR, and tested for humic acid (HA) adsorption in aqueous solution. XRD, XPS, and FT-IR measurements indicate the formation of layered structure with strong functional groups of GO. It is also found that the GO exhibits strong and much higher adsorption capacity of HA than graphite. The Maximum adsorption capacity of the GO from the Langmuir isotherm is 190 mg/g, higher than activated carbon. For the adsorption, several parameters will affect the adsorption such as solid loading and pH. HA adsorption will decrease with increasing pH and an optimum GO loading is required for maximum adsorption. (C) 2009 Elsevier Inc. All rights reserved.
Keyword Graphite
ACTIVATED CARBON
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Chemical Engineering Publications
 
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Created: Thu, 03 Sep 2009, 18:21:20 EST by Mr Andrew Martlew on behalf of School of Chemical Engineering