Research and Evaluation of Modified Single-Walled Carbon Nanotubes

The single-walled carbon nanotubes were loaded in white tam body 101 to get a new type adsorbent S101 The carbon nanotubes on the 101 tam surface can be clearly observed by scanning electron microscope. The particle size distribution was between 180 and 250 mu m, the specific surface area determined by Brunauer Emmett Teller (BET) method was 16.8 m(2)/g, the temperature used was over 400 degrees C, and the humidity affect was small. The break through volume of S101 was tested by flushing chromatographic method. The results showed that the sampling permeability and precision were effectively improved while the original excellent adsorption properties were kept. For most volatile organic compounds, the ratios of the requirement of duplicate precision and distributed volume pair were 100%.