Iron oxide (Fe2O3) prepared via green route and adsorption efficiency evaluation for an anionic dye: kinetics, isotherms and thermodynamics studies

Journal of Materials Research and Technology

Tariq Javed¹  Saima Naz²  Sobhy M. Ibrahim³  Munawar Iqbal⁴  Muhammad Yaseen⁵  Ghulam Mustafa⁶  Saima Noreen⁶  Jan Nisar⁷ 

[1] Corresponding author.;Department of Analytical Chemistry and Control, Hot Laboratories and Waste Management Center, Atomic Energy Authority, Cairo 13759, Egypt;Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;Department of Chemistry, Division of Science and Technology, University of Education Lahore, Multan Campus, Pakistan;Department of Chemistry, The University of Lahore, Lahore 53700, Pakistan;Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan;Department of Physics, University of Agriculture, Faisalabad 38040, Pakistan;

关键词: Biogenic synthesis;    Iron oxide:plant extracts;    Anionic dye;    Adsorption–desorption;    Kinetics;    Thermodynamics;   

DOI  :  

来源: DOAJ

【 摘 要 】

Textile sector is one of the major industries responsible for water pollution and the remediation of dyes is necessary to safe guard the water resources. Adsorption using nanoadsorbents have been emerged as one of viable techniques to eliminate the dyes from wastewater. Iron oxide was prepared via green route using Fan palm (F.P), Dombeya wallichii (D.W) and Pyrus comminis (P.C) as a reducing, capping and stabilizing agents. The adsorption of anionic dye using nanoadsorbents was studied and pH, adsorbent dose, contact time, temperature and concentration of dye were optimized. The maximum dye adsorption was achieved at pH 3, 0.01 g/50 mL adsorbent dose, 200 mg/L initial concentration at 65 °C. Thermodynamic study revealed that the adsorption on to nanoadsorbents was an endothermic process. Langmuir model and pseudo-second-order fitted well to the dye adsorption data. The presence of detergents and surfactants affected the dye adsorption on to nanoadsorbents. Efficient desorption was attained using 0.5 N sodium hydroxide. Results revealed that iron oxide prepared via green route is an efficient adsorbent for the removal of anionic dye and could possibly be used for the remediation of textile effluents.

【 授权许可】

Unknown