PRELIMINARY STUDY ON THE BILIRUBIN ADSORPTION PROPERTY OVER PITCHBASED SPHERICAL ACTIVATED CARBON

The bilirubin adsorption properties over three kinds of pitchbased spherical activated carbons (PSAC):PSAC with micropore only (PSACW), PSAC with both micropore and mesopore (PSACWZ) and PSAC with mesopore mainly (PSACZ), were studied.The results show that all the three kinds of PSACs have obvious adsorption ability toward bilirubin. The adsorption percentage can reach over 90%. The higher ratio of mesopore the PSAC holds, the higher adsorption rate it will have and the shorter time will be needed to reach adsorption balance.The adsorption capacity and adsorption rate to associative bilirubin of the three kinds of PSACs are lower than those to dissociative bilirubin.