| abstract |
The present invention relates to a carbon-carbon composite comprising a carbonaceous carrier and a nanosized carbon structure (eg, CNT or CNF), wherein the nanosized carbon structure is grown on the carbonaceous carrier. The carrier can be porous, as in activated carbon, or consist of carbon black particles. According to the present invention, nanocarbon can be grown in the pores of the porous carrier. The method for producing the carbon-carbon composite material includes a step of treating a carbonaceous carrier material with a catalyst material containing a metal capable of forming a nano-sized carbon structure, and the treatment in a gas atmosphere containing a carbon-containing gas. A step of growing a nanosize carbon structure on the spent carrier by a CVD (chemical vapor deposition) method, followed by an optional surface modification step. This method makes it possible to optimize the porosity, hydrodynamic properties and surface chemistry independently of one another and is particularly advantageous with regard to the use of the complex for water purification. Carbon black-based composites are particularly useful for filler applications. [Selection] Figure 1 |