Removal of Synthetic Azo Dye Using Bimetallic Nickel-Iron Nanoparticles
Joint Authors
Foster, Shelby L.
Estoque, Katie
Voecks, Michael
Rentz, Nikki
Greenlee, Lauren F.
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-19
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Bimetallic nanoparticles comprised of iron (Fe) and nickel (Ni) were investigated for the removal of an azo dye contaminant in water.
Morphology (core shell and alloy) and metal molar ratio (Ni2Fe10, Ni5Fe10, and Ni10Fe10) were tested as key nanoparticle properties.
The shelf life of the nanoparticles was tested over a 3-week period, and the effect of initial nanoparticle concentration on dye removal was evaluated.
The highest initial nanoparticle concentration (1000 mg/L) showed consistent Orange G removal and the greatest extent of dye removal, as compared to the other tested concentrations (i.e., 750 mg/L, 500 mg/L, and 250 mg/L) for the same nanoparticle morphology and metal molar ratio.
The metal molar ratio significantly affected the performance of the core shell morphology, where overall dye removal was found to be 66%, 89%, and 98% with an increasing molar ratio (Ni2Fe10 → Ni5Fe10 → Ni10Fe10).
In contrast, the overall removal of the dye for all molar ratios of the alloy nanoparticles only resulted in a variability of ±0.005%.
When stored in water for 3 weeks, core shell nanoparticles lost reactivity with an average>17% loss in removal with each passing week.
However, the alloy nanoparticles were able to continually remove Orange G from solution after 3 weeks of storage to ~97% when used at a starting nanoparticle concentration of 1000 mg/L.
Overall, the Ni2Fe10, Ni5Fe10, and Ni10Fe10 alloy nanoparticles with a starting nanoparticle concentration of 1000 mg/L resulted in the greatest dye removal of 97%, 99%, and 98%, respectively.
Kinetic rate models were used to analyze dye removal rate constants as a function of nanoparticle properties.
Kinetic rate models were seen to differ from core shell (first-order kinetics) to alloy morphology (second-order kinetics).
Alloy nanoparticles resulted in as high as X kinetic rate constant, and core shell nanoparticles resulted in as high as XX kinetic rate constant.
Metal leaching from the nanoparticles was investigated; alloy nanoparticles resulted in leaching of 3% Fe and 5% Ni which is similar to core shell leaching of 3.2% Fe and 4.3% Ni from the Fe10Ni10 nanoparticles.
American Psychological Association (APA)
Foster, Shelby L.& Estoque, Katie& Voecks, Michael& Rentz, Nikki& Greenlee, Lauren F.. 2019. Removal of Synthetic Azo Dye Using Bimetallic Nickel-Iron Nanoparticles. Journal of Nanomaterials،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1183487
Modern Language Association (MLA)
Foster, Shelby L.…[et al.]. Removal of Synthetic Azo Dye Using Bimetallic Nickel-Iron Nanoparticles. Journal of Nanomaterials No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1183487
American Medical Association (AMA)
Foster, Shelby L.& Estoque, Katie& Voecks, Michael& Rentz, Nikki& Greenlee, Lauren F.. Removal of Synthetic Azo Dye Using Bimetallic Nickel-Iron Nanoparticles. Journal of Nanomaterials. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1183487
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183487