Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction
Immobilization of chitosan on modified silica surface has been carried out by aminomethylation (Mannich reaction). The obtained chitosan–silica (CSS) composite was characterized by the Fourier transform infrared spectroscopy, specific surface area and pore diameter. The concentration of chitosan in...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Hindawi - SAGE Publishing
2015-08-01
|
Series: | Adsorption Science & Technology |
Online Access: | https://doi.org/10.1260/0263-6174.33.6-8.645 |
id |
doaj-a77c282de38d472d90d613bf6baf1b36 |
---|---|
record_format |
Article |
spelling |
doaj-a77c282de38d472d90d613bf6baf1b362021-04-02T13:24:33ZengHindawi - SAGE PublishingAdsorption Science & Technology0263-61742048-40382015-08-013310.1260/0263-6174.33.6-8.645Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich ReactionT.M. Budnyak0V.A. Tertykh1E.S. Yanovska2D. Kołodyńska3A. Bartyzel4Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Street, 03164 Kyiv, UkraineChuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Street, 03164 Kyiv, UkraineKyiv National Taras Shevchenko University, 64 Volodymyrska Street, 01033 Kyiv, UkraineMaria Curie-Skłodowska University, 2 Maria Curie Sklodowska Sq., 20-031 Lublin, Poland.Maria Curie-Skłodowska University, 2 Maria Curie Sklodowska Sq., 20-031 Lublin, Poland.Immobilization of chitosan on modified silica surface has been carried out by aminomethylation (Mannich reaction). The obtained chitosan–silica (CSS) composite was characterized by the Fourier transform infrared spectroscopy, specific surface area and pore diameter. The concentration of chitosan in the composite was determined by the thermogravimetric method. The effects of various parameters, such as pH, contact time, initial concentration of the metal on the adsorption of V(V), Mo(VI) and Cr(VI) oxoanions by the CSS composite were investigated in comparison with the initial components: chitosan, amino-containing silica and silica. The maximum adsorption capacities of composite with respect to V(V) and Mo(VI) oxoanions at pH 2.5 were 1.6 and 1.5 mmol/g, respectively, and 0.5 mmol/g towards Cr(VI) in the neutral medium.https://doi.org/10.1260/0263-6174.33.6-8.645 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
T.M. Budnyak V.A. Tertykh E.S. Yanovska D. Kołodyńska A. Bartyzel |
spellingShingle |
T.M. Budnyak V.A. Tertykh E.S. Yanovska D. Kołodyńska A. Bartyzel Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction Adsorption Science & Technology |
author_facet |
T.M. Budnyak V.A. Tertykh E.S. Yanovska D. Kołodyńska A. Bartyzel |
author_sort |
T.M. Budnyak |
title |
Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction |
title_short |
Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction |
title_full |
Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction |
title_fullStr |
Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction |
title_full_unstemmed |
Adsorption of V(V), Mo(VI) and Cr(VI) Oxoanions by Chitosan–Silica Composite Synthesized by Mannich Reaction |
title_sort |
adsorption of v(v), mo(vi) and cr(vi) oxoanions by chitosan–silica composite synthesized by mannich reaction |
publisher |
Hindawi - SAGE Publishing |
series |
Adsorption Science & Technology |
issn |
0263-6174 2048-4038 |
publishDate |
2015-08-01 |
description |
Immobilization of chitosan on modified silica surface has been carried out by aminomethylation (Mannich reaction). The obtained chitosan–silica (CSS) composite was characterized by the Fourier transform infrared spectroscopy, specific surface area and pore diameter. The concentration of chitosan in the composite was determined by the thermogravimetric method. The effects of various parameters, such as pH, contact time, initial concentration of the metal on the adsorption of V(V), Mo(VI) and Cr(VI) oxoanions by the CSS composite were investigated in comparison with the initial components: chitosan, amino-containing silica and silica. The maximum adsorption capacities of composite with respect to V(V) and Mo(VI) oxoanions at pH 2.5 were 1.6 and 1.5 mmol/g, respectively, and 0.5 mmol/g towards Cr(VI) in the neutral medium. |
url |
https://doi.org/10.1260/0263-6174.33.6-8.645 |
work_keys_str_mv |
AT tmbudnyak adsorptionofvvmoviandcrvioxoanionsbychitosansilicacompositesynthesizedbymannichreaction AT vatertykh adsorptionofvvmoviandcrvioxoanionsbychitosansilicacompositesynthesizedbymannichreaction AT esyanovska adsorptionofvvmoviandcrvioxoanionsbychitosansilicacompositesynthesizedbymannichreaction AT dkołodynska adsorptionofvvmoviandcrvioxoanionsbychitosansilicacompositesynthesizedbymannichreaction AT abartyzel adsorptionofvvmoviandcrvioxoanionsbychitosansilicacompositesynthesizedbymannichreaction |
_version_ |
1721565165084737536 |