The invention relates to pine nut shell gas-phase adsorption 
active carbon, which is prepared from the following raw materials in parts by weight: 150 to 160 parts of pine nut shell, 3 to 4 parts of 
graphene, 10 to 15 parts of attapulgite, 8 to 10 parts of 
ferric trichloride, 8 to 10 parts of 
sodium perborate, 10 to 15 parts of 
citric acid, 4 to 5 parts of modified diatomite and an appropriate amount of water. The pine nut shell is adopted as a 
raw material to produce the 
active carbon. The pine nut shell has hard texture and moderate 
specific gravity and is likely to form a fine pore structure after being carbonized at a high temperature, the weaknesses of a traditional method can be overcome and the 
active carbon is suitable for the gas adsorption; by adopting the attapulgite, a sterilizing, deodorizing, 
moisture absorbing and 
mildew preventing functions can be achieved and organisms can be catalyzed and decomposed; by utilizing the 
ferric trichloride, oxidization and desulphurization can be realized; due to addition of the 
sodium perborate, the oxidization decoloring function be realized and ecological 
oxygen can be realized; and the pine nut shell gas-phase adsorption active carbon is safe, healthy, low in cost and particularly suitable for purifying the air of a 
living environment.