PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight ...PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight of PS was higher than that of pure PS for the volume effect of MWNT terminating PS chains.And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.展开更多
The adsorption of aniline on the as-grown and purified carbon nanotubes has been investigated. The initial concentration of aniline solution, time, temperature and pH values of aniline solution have great influence on...The adsorption of aniline on the as-grown and purified carbon nanotubes has been investigated. The initial concentration of aniline solution, time, temperature and pH values of aniline solution have great influence on the adsorption capacity. The adsorption capacity of the as-grown carbon nanotubes towards aniline was 4.8 mg/g at pH=5. For that treated with nitric acid, it increased to 15.4 mg/g. The adsorption capacity decreased with increase of temperature in the range of 283 to 303 K. The adsorption isotherms can be described by Freundlich equation.展开更多
文摘PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight of PS was higher than that of pure PS for the volume effect of MWNT terminating PS chains.And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.
文摘The adsorption of aniline on the as-grown and purified carbon nanotubes has been investigated. The initial concentration of aniline solution, time, temperature and pH values of aniline solution have great influence on the adsorption capacity. The adsorption capacity of the as-grown carbon nanotubes towards aniline was 4.8 mg/g at pH=5. For that treated with nitric acid, it increased to 15.4 mg/g. The adsorption capacity decreased with increase of temperature in the range of 283 to 303 K. The adsorption isotherms can be described by Freundlich equation.
