Effects of Air-Phosphoric Acid Activation on Pore Structure and Adsorption Property of Mesoporous Carbon from Hemp Stem
作者： Jin Ju Sun , Jian Min Gao , Xin Min Hao , Xin Yu Cui , Tian Ma
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.821-822.41
关键词: Mesoporous material 、 Carbon 、 Phosphoric acid 、 Activated carbon 、 Inorganic chemistry 、 Chemical engineering 、 Specific surface area 、 Adsorption 、 Crystallite 、 Crystal 、 Materials science
摘要: Mesopore activated carbons were prepared using hemp stem as feedstock by air-phosphoric acid activation method. The crystallite size of stem-based mesoporous carbon is small, and its pores larger. phosphoric solution concentration has a signification effect on pore structure adsorption property mesopore from stem. attained at 50% exhibits maximum BET(Brunauer Emmett Teller) specific surface area 1351m2/g, total volume 1.21 cm3/ g, 0.90 g fraction 74.4%. And the resulting smaller crystal size, developed structure, wider distribution.
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