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Analytical and Bioanalytical Chemistry Research، جلد ۹، شماره ۱، صفحات ۱۰۱-۱۱۱
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عنوان انگلیسی Synthesize of Iron-Polyphenol Nanohydrogel from Melia Azedarach Fruit Extract and its Application as a Flocculant for Coagulation and Removal of Disperse Yellow 211
چکیده انگلیسی مقاله Melia azedarach fruit extract is used to synthesize iron-polyphenol nanohydrogel and its capability as a flocculant in coagulation and removal of Disperse Yellow 211 dye from the aqueous solution is examined. The structure of iron-polyphenol nanohydrogel is studied by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, and zeta potential. The field emission scanning electron microscopy analysis indicates that in situ-cross-linking of polyphenols of Melia azedarach extract by ferric ions resulted in the formation of nanohydrogel containing particles in the range of 23-35 nm. Experiments confirmed that the prepared iron-polyphenol nanohydrogel has the excellent ability as the flocculant for coagulation and removal of the Disperse Yellow 211 dye in the pH range of 4.0-8.0, at room temperature. The required time for obtaining equilibrium at different concentrations of dye is ~ 50 minutes, and in this period, 200 mg L-1 of dye solution is 92% decolorized. The best-fitted model for experimental data is found to be the second-order kinetics and Langmuir thermodynamic indicating the sorption occurs in a monolayer and is governed by chemisorption. The maximum capacity of the sorbent is 1111.1 mg g-1.
کلیدواژه‌های انگلیسی مقاله Green synthesis,Iron-polyphenol complex,Nanohydrogel,Adsorptive flocculation,Melia azedarach fruit,Disperse Yellow 211 dye
نویسندگان مقاله Mohammad Reza Parsaeian |
Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran

Shayessteh Dadfarnia |
Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran

Ali Mohammad Haji Shabani |
Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran

Reza Hafezi Moghaddam |
Department of Chemistry, Faculty of Science, Yazd University, Yazd, Iran. Central Iran Research Complex, Nuclear Science and Technology Research Institute, Yazd, Iran

نشانی اینترنتی https://www.analchemres.org/article_137593_ce2a8cba73690657c909d0348a31982c.pdf
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