Use of the photoacoustic spectroscopy for characterization of magnetic fluid based on mamona oil

被引：1
|
作者：
Silveira, L. B. [1 ]
Webler, G. D. [1 ]
Oliveira, A. C. [2 ]
Garg, V. K. [2 ]
Santos, J. G. [1 ]
Morais, P. C. [2 ]
机构：
[1] Univ Fed Rondonia NCT UNIR, Dept Fis, BR 364,Km 9,5, BR-78900000 Porto Velho, RO, Brazil
[2] Univ Brasilia, Inst Fis, Nucl Fis Aplicada, BR-70919970 Brasilia, DF, Brazil
来源：
15TH INTERNATIONAL CONFERENCE ON PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA (ICPPP15) | 2010年 / 214卷
关键词：
D O I：
10.1088/1742-6596/214/1/012132
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study the photoacoustic spectroscopy was used to investigate the interaction between colloidal suspended nanosized maghemite particles and molecules present in mamona oil (ricinus communis L.). Maghemite nanoparticles were used to produce a magnetic fluid sample dispersed in mamona oil (MF-Mamona oil). In the L-band region (600 to 900 nm) of the photoacoustic spectra we found the photoacustic signal of sample MF-Mamona oil enhanced with respect to the signal of the purified mamona oil. This finding is claimed to be the signature of the strong interaction between the mamona oil's molecules and the solid surface provided by the suspended nanosized maghemite particles.
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页数：4
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