Process optimization studies of crystal violet dye adsorption onto novel, mixed metal Ni0.5Co0.5Fe2O4 ferrospinel nanoparticles using factorial design. (April 2017)

• Record Type: Journal Article
• Authors: Farooq, Saima; Saeed, Abubakr; Sharif, Muhammad; Hussain, Javid; Mabood, Fazal; Iftekhar, Maryam
• Is Part Of: Journal of water process engineering. Volume 16(2017)
• Page Start: 132
• Page End: 141
• Publication Date: 2017-04
• Subjects: Mixed metal ferrites -- Nanoparticles -- Full factorial design -- Optimization -- Waste water; Water-supply engineering -- Periodicals; Saline water conversion -- Periodicals; Seawater -- Distillation -- Periodicals; Sanitary engineering -- Periodicals; Sewage -- Purification -- Periodicals; 627
• DOI: 10.1016/j.jwpe.2017.01.001
• Languages: English
• ISSNs: 2214-7144

Abstract

Graphical abstract: A scheme showing the interaction mechanism of crystal Violet dye (adsorbate) to Ni0.5 Co0.5 Fe2 O4 (NCF) nanoparticles (adsorbent). Highlights: Evaluation of a mixed-metal oxide nanoparticles as an adsorbent material. Systematic investigation of effect process variables on %dye removal efficiency by a full-factorial design methodology. Optimization of process variables for the maximum dye uptake from aqueous solution using Response Surface Methodology. Abstract: Among various kinds of pollutants released into the environment, dyes are considered as one of the most hazardous contaminant. A mixed metal magnetic Ni0.5 Co0.5 Fe2 O4 nanoparticles were successfully used as an adsorbent for the uptake of Crystal Violet (CV) dye from aqueous solution. A 2 5 full factorial design was applied to investigate the effect of multiple process variables on the% dye removal efficiency. The experimental values were found to be in excellent conformity with the model predicted values. The optimum values of the tested parameters for maximum removal of CV dye from aqueous solution were obtained as follows: pH = 11.0; Initial concentration of dye = 13.57 mg/L; Adsorbent amount = 0.089 g; contact time = 35 min; and Temperature = 22 °C. The R 2 value 99.86% shows the satisfactory explanatory power of model. This may provide theoretical basis for further research and utilization of newly designed adsorbent for the uptake of various kinds of dyes from waste water.