| Influence of Various Conditions on Lepidocrocite Nanoparticles Morphology |
| Paper ID : 2104-UFGNSM13-FULL |
| Authors: |
|
Safoora Rahimi *1, rozita m moatari1, Laleh Rajabi2, Ali Ashraf Derakhshan2 1Room No.38, Department of Chemical Engineering, College of Engineering, Razi University, Kermanshah, 67149-67346, Iran. 2Polymer Research Center, Department of Chemical Engineering, Razi University |
| Abstract: |
| The study focused on the effects of temperature, initial precursor concentration, mixing conditions and presence of surfactant on the synthesis of lepidocrocite nanoparticles. Nine kinds of lepidocrocite were synthesized through the reaction between iron (II) chloride tetrahydrate, hexamethylenetetramine and sodium nitrite. The resulting samples were sonicated at different temperatures (25 ◦C, 55 ◦C) for 1 hour. At the present work three type of surfactants namely, cetyltrimethylammonium bromide (CTAB, cationic surfactant), sodium dodecyl sulfate (CDEA, anionic surfactant) and coconut fatty acid diethanolamide (CDEA, non-ionic surfactants) were used. Also initial iron solution concentration was 0.6 and 1.2 mol/lit, and iron (II) chloride tetrahydrate and hexamethylenetetramine were added together in two manners, immediately and dropwise. Their structures were characterized by FTIR spectra analysis and SEM. Results showed that presence of surfactants had not positive effect on grain size and morphology of nanoparticles. We observed best conditions occurred when initial iron solution concentration was 0.6 mol/lit at 55◦C and precursors were added together immediately. |
| Keywords: |
| Lepidocrocite, Surfactant, Iron (II) chloride tetrahydrate, Hexamethylenetetramine, Mixing conditions, Grain size |
| Status : Paper Accepted (Poster Presentation) |
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