[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 6, Number 2 (Spring 2017) ::
Arch Hyg Sci 2017, 6(2): 214-220 Back to browse issues page
Synthesis and Application of Iron Oxide/Silica Gel Nanocomposite for Removal of Sulfur Dyes from Aqueous Solutions
Naser Tavassoli, Reza Ansari *, Zahra Mosayebzadeh
Department of Chemistry, School of Science, University of Guilan, Rasht, Iran
Abstract:   (497 Views)

Background & Aims of the Study: water pollution by synthetic organic dyes is mainly regarded as environmental and ecological critical issues worldwide. In this research, magnetite iron oxide/silica gel nanocomposite (termed as Fe3O4/SG) was synthesized chemically and then used as an effective adsorbent for removal of sulfur dyes from aqueous solution.

Materials and Methods: The various parameters such as pH, sorbent dosage, initial dye concentration, contact time and dye solution temperature were investigated in a batch system. The equilibrium data were analyzed by Langmuir and Freundlich isotherm models.

Results: The experimental data fit well with pseudo-second-order kinetic model (R2≥0.998) and conformed better to Langmuir isotherm model (R2≥0.997). The maximum adsorption capacity for Fe3O4/SG obtained from the Langmuir model was 11.1mg/g. Evaluation of thermodynamic parameters proved that the adsorption process was normally feasible, spontaneous and exothermic.

Conclusion: It can be concluded that the Fe3O4/SG can be considered as a cost-effective and an environmental friendly adsorbent for efficient removal of sulfur dyes from aqueous solutions.

Keywords: Keywords: Adsorption, Fe3O4 coated silica, Sulfur dye, Isotherms
Full-Text [PDF 730 kb]   (365 Downloads)    
Type of Study: Research | Subject: Environmental Health
Received: 2016/10/2 | Accepted: 2017/02/21 | Published: 2017/02/28
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Tavassoli N, Ansari R, Mosayebzadeh Z. Synthesis and Application of Iron Oxide/Silica Gel Nanocomposite for Removal of Sulfur Dyes from Aqueous Solutions. Arch Hyg Sci. 2017; 6 (2) :214-220
URL: http://jhygiene.muq.ac.ir/article-1-182-en.html
Volume 6, Number 2 (Spring 2017) Back to browse issues page
Archives of Hygiene Sciences Archives of Hygiene Sciences
Persian site map - English site map - Created in 0.19 seconds with 799 queries by yektaweb 3478