Fluorene Functionalized Nanoporous SBA-15 as a Novel Adsorbent for Fast and Efficient Removal of Acid Dyes
Subject Areas : Polymer
Mona
Hajialifard
1
(Department of Chemistry, Yadegar -e- Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran)
Leila
Hajiaghababaei
2
(Department of Chemistry, Yadegar -e- Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran)
Alireza
Badiei
3
(School of Chemistry, College of Science, University of Tehran, Tehran, Iran)
Marzieh
Yadavi
4
(School of Chemistry, College of Science, University of Tehran, Tehran, Iran)
Shiva
Dehghan Abkenar
5
(Department of Chemistry, Savadkooh Branch, Islamic Azad University, Savadkooh, Iran)
Mohammad Reza
Ganjali
6
(Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran)
Ghodsi
Mohammadi Ziarani
7
(Department of Chemistry, Alzahra University, Tehran, Iran)
Keywords:
Abstract :
SBA-15 grafted with N-(4-(trimethylsilyl) butyl)-9H-fluorene-9-amine was synthesized by a simplestrategy and applied to removal of Acid Red 33 and Acid Black 194 from aqueous solutions. SBA-15 was synthesized and Functionalized according to procedure in the literature. Fluorenefunctionalized SBA-15 was showed the BET surface area 200 m2g-1 and pore diameter 4.2 nm,based on adsorption-desorption of N2 at 77 K. The presence of organic groups in the silicaframework was demonstrated by FTIR and Raman spectrum. The effects of pH, amount ofadsorbent, contact time and dye concentration on adsorption were determined in order to find theoptimum adsorption conditions. The data fitted well to the Langmuir model with maximumadsorption capacities 500.0 mg/g for Acid Red 33 and 110.0 mg/g for Acid Black 194. The resultswere shown that this methodology could be suitable for the removal of the pollutant acid dyes fromdyeing wastewater of handmade carpet’s fibers.