A new method for preparing hydrophilic-activated carbon through ester hydrolysis in an alkaline environment

Yao, Xiaolong, Li, Liqing, Li, Hailong and He, Suoying (2014) A new method for preparing hydrophilic-activated carbon through ester hydrolysis in an alkaline environment. Journal of Materials Science, 49 14: 4807-4815. doi:10.1007/s10853-014-8180-9


Author Yao, Xiaolong
Li, Liqing
Li, Hailong
He, Suoying
Title A new method for preparing hydrophilic-activated carbon through ester hydrolysis in an alkaline environment
Journal name Journal of Materials Science   Check publisher's open access policy
ISSN 1573-4803
0022-2461
Publication date 2014-07-01
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s10853-014-8180-9
Volume 49
Issue 14
Start page 4807
End page 4815
Total pages 9
Place of publication New York, NY, United States
Publisher Springer New York
Language eng
Abstract Hydrophilic-activated carbon was prepared by ester hydrolysis reactions, and was characterized by surface area analysis, Fourier transform infrared spectroscopy, scanning electron microscopy energy dispersive X-ray spectroscopy, and X-ray diffraction. Hydrophilic groups that were introduced on activated carbon surface through ethyl acetate hydrolysis in an alkaline environment were more efficient than those introduced with sodium acetate. During adsorption, the hydrophilic groups on modified activated carbon surface bound with water molecules through H-bonding and increased the adsorption capacity of water vapor. The adsorption isotherms of water vapor were well fitted by the Do model. Water molecules generated larger water clusters around the functional groups at 303 and 313 K. In addition, water desorption from the samples was analyzed by thermogravimetry. Water molecules that were hydrogen-bonded to functional groups exhibited higher thermal stability than those adsorbed in the micropore of activated carbon Besides, the process of sodium acetate formation on the surface of modified activated carbon was discussed.
Keyword Hydrophilic-activated carbon
Alkaline
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
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