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Preparation and Far Infrared Emission Properties of Natural Sepiolite Nanofibers

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Abstract:

Sepiolite nanofibers were prepared by high-speed air current superfine technique, using natural sepiolite samples as raw materials. Through characterization by scanning electron microscope (SEM), X-ray diffraction (XRD), dynamic contact angle meter and tensiometer (DCAMT) and Fourier transform infrared spectroscope (FTIR), it was found that the defibered sepiolite nanofibers with an average diameter of about 100 nm and length greater than 9 m had a better far infrared emitting performance than acid-purified sepiolite as the contrast sample, and the defibering treatment led to the improvement of far infrared emitting performance of sepiolite due to the increase of surface free energy, the increase of infrared active bond vibrations, and the decrease of cell volume caused by the distortion of structural channel.

Keywords: DEFIBER; FAR INFRARED EMISSION; MINERAL MATERIALS; NANOFIBERS; SEPIOLITE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2116

Publication date: March 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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