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The temperature effect on synthesizing different carbon nanostructures in the range of 820−1020°C by sulfur-assisted chemical vapor deposition is investigated. When the growth temperature is no more than 900°C (e.g. 820, 860, and 900°C), carbon onions can be obtained, accompanying with some fishbone-like carbon nanofibers (CNFs), graphite sheet and carbon nanotubes (CNTs). When the growth temperature...
Carbon-coated TiO 2 was synthesized by mixing TiO 2 powders and polyethylene glycol, followed by heat treatment in nitrogen atmosphere. All samples were characterized by powder X-ray diffraction, UV diffuse reflectance spectroscopy, high-resolution transmission electron microscopy, and nitrogen adsorption. The photocatalytic activity of carbon-coated TiO 2 for benzene degradation...
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