We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Removal of As(III) from Aqueous Solution Using FeO Nanoparticles: Process Modeling and Optimization Using Statistical Design.
- Authors
Sahu, Uttam; Sahu, Manoj; Mahapatra, Siba; Patel, Raj
- Abstract
In this study, Extran (biodegradable surfactant) was used for the preparation of FeO nanoparticles by microemulsion process to improve removal efficiency of As(III) from aqueous solution. FeO nanoparticles were characterized by XRD, FTIR, FESEM, TEM, HRTEM, and VSM instrumental techniques. The effect of different parameters such as adsorbent dose, initial As(III) concentration, and solution pH were studied by response surface methodology (RSM) based on Box-Behnken design (BBD). The optimized condition for adsorption of As(III) from aqueous solution was obtained as adsorbent dose of 0.70 mg/g, solution pH of 7.7, and initial As(III) concentration of 33.32 mg/L. In this optimum condition, about 90.5% of As(III) was removed from the aqueous solution. Isotherm studies have been done at optimal condition, and it was observed that the Langmuir isotherm models were fitted well with experimental data having a high correlation coefficient of 0.993. From the Langmuir isotherm data, the maximum adsorption capacity of FeO nanoparticles was found to be 7.18 mg/g at pH 7.7 in room temperature. This study revealed that FeO nanoparticles can be used as an efficient, eco-friendly, and effective material for the adsorptive removal of As(III) from aqueous system.
- Subjects
AQUEOUS solutions; NANOPARTICLES; MICROEMULSIONS; SURFACE active agents; LANGMUIR isotherms; ADSORPTIVE separation; SEPARATION (Technology)
- Publication
Water, Air & Soil Pollution, 2017, Vol 228, Issue 1, p1
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-016-3224-1