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A Study of Mn(II) Ion Capture by Mesoporous Silica

Yuan, Na-Juan; Ren, Tie-Zhen and Christensen, Jeppe LU (2011) In Adsorption Science and Technology 29(4). p.345-356
Abstract
The removal of Mn(II) ions from water using mesoporous silica as the adsorbent material is discussed. The mesoporous silica was prepared in an economic manner through the use of sodium silicate as an inexpensive source of silica and decaoxyethylene cetyl ether [C-16(EO)(10)] as the template agent. The properties of the material were characterized and its adsorption capacity for Mn(II) ions from aqueous solution investigated by varying parameters such as the pH of the initial suspension, the contact time, the initial concentration of Mn(II) ions in the solution and the adsorbent dosage. With no subsequent modification, the prepared materials exhibited a high adsorption capability towards Mn(II) ions with q(e) = 44 mg/g. The adsorption... (More)
The removal of Mn(II) ions from water using mesoporous silica as the adsorbent material is discussed. The mesoporous silica was prepared in an economic manner through the use of sodium silicate as an inexpensive source of silica and decaoxyethylene cetyl ether [C-16(EO)(10)] as the template agent. The properties of the material were characterized and its adsorption capacity for Mn(II) ions from aqueous solution investigated by varying parameters such as the pH of the initial suspension, the contact time, the initial concentration of Mn(II) ions in the solution and the adsorbent dosage. With no subsequent modification, the prepared materials exhibited a high adsorption capability towards Mn(II) ions with q(e) = 44 mg/g. The adsorption isotherms could be described by both the Langmuir and Freundlich models, the former model providing a better representation of the adsorption process. Characterization using UV-vis spectroscopy, nitrogen sorption isotherms and thermogravimetric analysis after adsorption indicated that the Mn(II) ions were adsorbed onto the mesoporous silica surface. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Adsorption Science and Technology
volume
29
issue
4
pages
345 - 356
publisher
Multi-Science Publishing
external identifiers
  • wos:000296472100001
  • scopus:80755158989
ISSN
0263-6174
DOI
10.1260/0263-6174.29.4.345
language
English
LU publication?
yes
id
e5f24cf6-bb8c-4c24-a02d-786d31262e0b (old id 2254578)
date added to LUP
2011-12-20 08:04:55
date last changed
2017-01-01 03:24:00
@article{e5f24cf6-bb8c-4c24-a02d-786d31262e0b,
  abstract     = {The removal of Mn(II) ions from water using mesoporous silica as the adsorbent material is discussed. The mesoporous silica was prepared in an economic manner through the use of sodium silicate as an inexpensive source of silica and decaoxyethylene cetyl ether [C-16(EO)(10)] as the template agent. The properties of the material were characterized and its adsorption capacity for Mn(II) ions from aqueous solution investigated by varying parameters such as the pH of the initial suspension, the contact time, the initial concentration of Mn(II) ions in the solution and the adsorbent dosage. With no subsequent modification, the prepared materials exhibited a high adsorption capability towards Mn(II) ions with q(e) = 44 mg/g. The adsorption isotherms could be described by both the Langmuir and Freundlich models, the former model providing a better representation of the adsorption process. Characterization using UV-vis spectroscopy, nitrogen sorption isotherms and thermogravimetric analysis after adsorption indicated that the Mn(II) ions were adsorbed onto the mesoporous silica surface.},
  author       = {Yuan, Na-Juan and Ren, Tie-Zhen and Christensen, Jeppe},
  issn         = {0263-6174},
  language     = {eng},
  number       = {4},
  pages        = {345--356},
  publisher    = {Multi-Science Publishing},
  series       = {Adsorption Science and Technology},
  title        = {A Study of Mn(II) Ion Capture by Mesoporous Silica},
  url          = {http://dx.doi.org/10.1260/0263-6174.29.4.345},
  volume       = {29},
  year         = {2011},
}