Study on Adsorption of Chitosan and interaction with C12EO5 on Silica

Author

Liu Bingtao ; Fokkink, Remco ; De Keizer, Arie

Author_Institution

Sch. of Municipal & Environ. Eng., North China Inst. of Water Conservancy & Hydroelectric Power, Zhengzhou, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

Abstract-the article intends to introduce the authors´ experimental study on adsorption behaviour of chitosan solution on silica by reflectometry. Effect of pH on adsorption of Chitosan and interaction with non-ionic surfactant on silica has been studied. The adsorbed amount Γ was 0.80, 0.35 mg·m^-2 at pH6.8 and 6.0, respectively. Zeta potential measurements have been measured in the experiment. Exchanges in surface functionality upon adsorbing C₁₂EO₅ on chitosan layer are reported. The results are discussed in terms of adsorption kinetics, adsorbed mass plateau values, and reversibility of the layer formation.The mechanism of the adsorption process are likely to be the electrostatic attraction and entropic origin which is typical for adsorption of strongly charged polyelectrolytes onto oppositely charged surfaces.

Keywords

adsorption; electrokinetic effects; electrostatics; organic compounds; pH; polymer electrolytes; reaction kinetics; reflectometry; silicon compounds; surface charging; surfactants; SiO₂; adsorbed mass plateau values; adsorption kinetics; chitosan; electrostatic attraction; entropic origin; layer formation reversibility; nonionic surfactant; oppositely charged surfaces; pH; reflectometry; silica; strongly charged polyelectrolytes; surface functionality exchanges; zeta potential measurements; Absorption; Chemistry; Electrostatic measurements; Kinetic theory; Power engineering and energy; Reflectometry; Silicon compounds; Surface emitting lasers; Surface fitting; Water conservation;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5517987

Filename

5517987