Open AccessDecontamination of fenitrothion from aqueous solutions using rGO/MoS2/Fe3O4 magnetic nanosorbent: synthesis, characterization and removal application
Author(s) -
A. Mangeli,
Ali Mostafavi,
Tayebeh Shamspur,
Fariba Fathirad,
Fatemeh Mehrabi
Publication year - 2021
Publication title -
journal of environmental health science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
ISSN - 2052-336X
DOI - 10.1007/s40201-021-00706-w
Subject(s) - adsorption , fenitrothion , aqueous solution , desorption , chemistry , langmuir adsorption model , fourier transform infrared spectroscopy , nuclear chemistry , pesticide , chemical engineering , organic chemistry , agronomy , biology , engineering
In the present work, rGO/MoS 2 /Fe 3 O 4 nanocomposite was synthesized and after confirmation of the structure by FTIR, XRD, and FESEM techniques, its performance as nanosorbent was investigated for the removal of fenitrothion pesticide from the aqueous media. The parameters affecting the removal process including agitation time, pH of the reaction medium, adsorbent content, initial analyte concentration as well as desorption parameters were investigated and optimized. Under optimum conditions (pH = 7, adsorbent amount: 30 mg, adsorption and desorption time: 5 min, eluent type and volume: 0.01 M ethanol-acetic acid and 4 mL), the synthesized adsorbent was able to remove fenitrothion pesticide up to 98% with an adsorption capacity of 33.4 mg/g. By investigation of the line equation and the correlation coefficient value, it was found that the adsorption process, in this study, follows the Langmuir model.