Preparation and application of magnetic Ni nanocomposite (Fe۳O۴@SiO۲@Ni۲+) in adsorption of azo dyes
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 238
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شناسه ملی سند علمی:
ICNNA02_193
تاریخ نمایه سازی: 4 مهر 1400
چکیده مقاله:
In this study, preparation, characterization and adsorption properties of the magnetic nanocomposite Fe۳O۴@SiO۲@Ni۲+ made by chemical co-precipitation method were investigated. The structure of synthesized nanocomposite was characterized by using FTIR, XRD, VSM, FE-SEM, EDX-MAP, TGA, BET, and ICP-OES analyses. The introduced nanocomposite exhibited a great tendency towards the azo and anionic dyes in aqueous media. The adsorption parameters were evaluated to find the optimal conditions of pH= ۷, T= ۲۹۳ K, amount of adsorbent= ۱۰ mg, t= ۱۰ min, and the initial concentration of Acid violet ۵ dye= ۲۰ mg/L. The isotherm and kinetic models were investigated by using adsorption equilibrium data. The magnetic nanocomposite gave a high maximum adsorption capacity (qmax) and adsorption percentage (%A) under optimal conditions.
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نویسندگان
Razieh Sadatmadani
Razieh Sadatmadani, Faculty of Chemistry, University of Mazandaran
Mahmood Tajbakhsh
Mahmood Tajbakhsh, Faculty of Chemistry, University of Mazandaran
Rahman Hosseinzadeh
Rahman Hosseinzadeh, Faculty of Chemistry, University of Mazandaran,
Zari Fallah
Zari Fallah, Faculty of Chemistry, University of Mazandaran,