Interaction of mineral surfaces with simple organic molecules by diffuse reflectance IR spectroscopy (DRIFT)
نویسندگان
چکیده
منابع مشابه
DIFFUSE REFLECTANCE MEASUREMENTS FROM DIFFERENT SURFACES
Relative diffuse reflection measurements from the original and ground surfaces using a He-Ne laser are reported. The intensity measurements for the metallic, transparent dielectric, matte plastic surfaces and colored papers are presented. Our results indicate that among metallic surfaces tested, aluminum has the highest diffuse reflectance; while the original stainless steel surface shows the l...
متن کاملEnvironmentally significant organic molecules adsorbed onto mineral samples from non-aqueous media: Diffuse reflectance (DRIFTS) infrared spectroscopy
DRIFTS, was used to study small organic molecules, with and without functional groups, adsorbed to the surface of γ-alumina and kaolinite clay from a non-polar solvent. Adsorbed water is present on the surface of both minerals and this influences the adsorption of organic molecules from, the non-polar solvent, onto the mineral surface, particularly the interaction of polar functional groups wit...
متن کاملReflectance IR Spectroscopy
Infrared spectroscopy is study of the interaction of radiation with molecular vibrations which can be used for a wide range of sample types either in bulk or in microscopic amounts over a wide range of temperatures and physical states. As was discussed in the previous chapters, an infrared spectrum is commonly obtained by passing infrared radiation through a sample and determining what fraction...
متن کاملdiffuse reflectance measurements from different surfaces
relative diffuse reflection measurements from the original and ground surfaces using a he-ne laser are reported. the intensity measurements for the metallic, transparent dielectric, matte plastic surfaces and colored papers are presented. our results indicate that among metallic surfaces tested, aluminum has the highest diffuse reflectance; while the original stainless steel surface shows the l...
متن کاملQuantitative Diffuse Reflectance Spectroscopy
In the field of biomedical optics, diffuse reflectance spectroscopy (DRS) is a frequently used technique for obtaining information about the optical properties of the medium under investigation. The method utilizes spectral difference between incident and backscattered light intensity for quantifying the underlying absorption and scattering processes that affects the light-medium interaction. I...
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ژورنال
عنوان ژورنال: Journal of Colloid and Interface Science
سال: 2008
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2008.03.024