Comparative study of physico-chemical properties of two nano-magnetic compounds, CaO@Fe3O4 and Fe3O4@CaO and their catalytic role on Biodiesel preparation

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 402

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شناسه ملی سند علمی:

IICC21_027

تاریخ نمایه سازی: 5 آذر 1398

چکیده مقاله:

In this project, two nano-magnetic composites from Calcium Oxide and Iron (II, III) Oxide as nano-core-shell materials (CaO@ Fe3O4 and Fe3O4@CaO) were synthesized by hydrothermal method and characterized by general techniques such as FTIR, XRD, FESEM, EDS, MAP and BET. The chemical and physical properties of these nano-compounds were studied and compared with each other. What was very interesting in this research was the type of Metal Oxide as a core part. By changing of core from Fe3O4 to CaO; 1) the crystal size decreased from 41.60 to 36.82 nm. 2) the morphology was significantly changed, CaO@ Fe3O4 got misty mountain like shape but other compound has got tiny spherical. 3) surface area and pore volume decreased as: CaO@Fe3O4 is Macroporous and other compound is Microporous. 4) Fe3O4 was better than CaO as core due to more amount of shell. Both nano-magnetic composites were efficiently performed trans-esterification process with sun flower oil and Methanol without any additional base compounds. Prepared Biodiesel was characterized by 1H, 13C-NMR and GC apparatuses. Also these results corresponded with prepared Biodiesel by NaOH as a standard.[1-5]

نویسندگان

Hamid Reza Mardani

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran

Mehdi Forouzani,

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran

Nazanin Moradai,

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran

Mitra Ziari

Department of Chemistry, Payame Noor University, ۱۹۳۹۵-۴۶۹۷ Tehran, Iran