Preparation of phosphoric acid activated carbons from Canarium Schweinfurthii Nutshell and its role in methylene blue adsorption
作者: Surajudeen OlawaleAdegboyega
刊名: Journal of Chemical Engineering and Materials Science, 2015, Vol.6 (2), pp.9-14
来源数据库: Academy Journals
DOI: 10.5897/JCEMS2015.0219
关键词: 1 to 1
原始语种摘要: Activated carbons were prepared by phosphoric acid activation of Canarium Schweinfurthii spent nutshell. The activation conditions for particles with average diameter of 2.36 mm, conducted in nitrogen chamber, were evaluated at 40 and 60% acid concentration, substrate/activating agent (impregnation) ratio of 1:1 to 1:4, activation time of 20 to 60 min and temperatures of 200 and 400deg;C. The results showed that the yield, BET surface area and adsorption capacities of activated carbon produced increased with impregnation ratio, activation time and temperatures. The activated carbon obtained using 1:4 impregnation ratios at 60 min with 40 wt% acid solution have BET surface area and adsorption capacity of 741 m2/g and 8.5 gMB/g Carbon while those for 60wt% acid solution were determined as...
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  • carbons 炭黑
  • adsorption 吸附
  • ratio 
  • solution 溶液
  • nitrogen 
  • phosphoric 含磷的
  • impregnation 浸透
  • conditions 条件式
  • respectively 分别
  • average 平均