PHOTOCATALYST COMPRISING TIO2 AND ACTIVATED CARBON MADE FROM DATE PITS

摘要

The present invention relates to a method consisting essentially of contacting date pits with a phosphoric acid solution having a phosphoric acid concentration of from about 1% by weight to about 30% by weight, to form treated date pits; drying the treated date pits to form treated, dried date pits; heating the treated, dried date pits under a nitrogen blanket and under conditions to cause the treated, dried date pits to thermally decompose and form activated carbon; and pulverizing and screening the activated carbon. The present invention further relates to activated carbon made from a method comprising: contacting date pits with a phosphoric acid aqueous solution having a phosphoric acid concentration of from about 5% by weight to about 20% by weight, to form treated date pits; drying the treated date pits at a temperature of from about 80' C to about 150' C for a period of from about I hour to about 12 hours, to form treated, dried date pits; calcining the treated, dried date pits at a temperature of 8500 C under a nitrogen blanket to cause the treated, dried date pits to thermally decompose and form activated carbon.