Surfactant effect on synthesize of SrAl2O4 nanoparticles prepared by reverse micelle process
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Strontium aluminate (SrAl2O4) spinel nanoparticles were synthesized by microemulsion method using micro-reactors made ofdifferent nonionic surfactants (Span 20, Span 40 and Span 60) in a nonpolar solvent cyclohexane. The synthesizednanomaterials were characterized by X-ray diffraction (XRD) technique. The morphology of the synthesized materials wasstudied by field emission scanning electron microscope (FESEM). The average particles size was estimated by XRD andtransmission electron microscope (TEM) with using software of IMAGE J. The effect of different surfactants on the particlessize and morphology was determined. It was found that the average particles size was decreased by decreasing HLB(Hydrophilic-Lipophilic Balance) of surfactants and also the average particles size was decreased from 31 to 21 nm. HLB ofsurfactants is a major factor in controlling the final particles size of SrAl2O4 powder. Dislocation of peaks (2θ) in XRD withdecreasing HLB of surfactant was decreased slightly. The XRD analysis of all the powders indicated the formation of singlephasespinel structure on calcinations.
Abstract
Strontium aluminate (SrAl2O4) spinel nanoparticles were synthesized by microemulsion method using micro-reactors made ofdifferent nonionic surfactants (Span 20, Span 40 and Span 60) in a nonpolar solvent cyclohexane. The synthesizednanomaterials were characterized by X-ray diffraction (XRD) technique. The morphology of the synthesized materials wasstudied by field emission scanning electron microscope (FESEM). The average particles size was estimated by XRD andtransmission electron microscope (TEM) with using software of IMAGE J. The effect of different surfactants on the particlessize and morphology was determined. It was found that the average particles size was decreased by decreasing HLB(Hydrophilic-Lipophilic Balance) of surfactants and also the average particles size was decreased from 31 to 21 nm. HLB ofsurfactants is a major factor in controlling the final particles size of SrAl2O4 powder. Dislocation of peaks (2θ) in XRD withdecreasing HLB of surfactant was decreased slightly. The XRD analysis of all the powders indicated the formation of singlephasespinel structure on calcinations.
참고문헌 (48)
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