NDLI: Sulfonate-functionalized nanoporous silica spheres as adsorbent for methylene blue

Content Provider	Springer Nature Link
Author	Zarezadeh Mehrizi, Mansoureh Badiei, Alireza Shahbazi, Afsaneh
Copyright Year	2015
Abstract	Sulfonate-functionalized nanoporous silica spheres (NSS-SO$_{3}$) were prepared by conversion of epoxide to sulfonate with sulfonic acid salts. NSS-SO$_{3}$ was used as an adsorbent for removal of methylene blue (MB) cationic dye. The adsorbent was characterized by means of scanning electron microscopy (SEM), N$_{2}$ adsorption–desorption isotherms, Fourier-transform infrared (FTIR) and Raman spectroscopy, and thermogravimetric analysis. SEM images showed the spherical morphology of the material. The synthesized material was successfully applied for MB removal from synthetic solution in batch systems. The equilibrium sorption isotherm and kinetics were investigated. The adsorption of dye onto the adsorbent could reach equilibrium after 60 min. The equilibrium adsorption data were best described by the Langmuir isotherm. A maximum monolayer sorption capacity of 208 mg g$^{−1}$ was found. The kinetic studies indicated that the adsorption process could be well fited by a pseudo-second-order kinetic model.
Starting Page	3537
Ending Page	3551
Page Count	15
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	42
Issue Number	4
e-ISSN	15685675
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-08-22
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Silica Sulfonate-functionalized Methylene blue Waste water Catalysis Physical Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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