Preparation and adsorption performance of palm fiber-based nanoporous carbon materials with high specific surface area
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Palm fiber-based nanoporous carbon materials with high specific surface area had been successfully prepared from palm fiber by zinc chloride activated method. Structures of the obtained materials were studied by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and a surface area and pore size analysis method. Adsorption performance of the as-prepared materials was evaluated by a batch method on 722S spectrophotometer. Results indicated that the obtained materials had abundant pore structure, e.g. the Brunauer–Emmett–Teller (BET) surface area and total pore volume could be up to 3892 m2/g and 2.901 m3/g, respectively. BET surface area increased first, and then decreased with increasing the activator ratio, while the mesopores proportion increased significantly. Adsorption experiments showed that the obtained material had good adsorption performance. The adsorption equilibrium between dye and palm fiber-based activated carbon (PFAC) achieved within 2 min at the experiment conditions. The adsorption capacity of PFAC-3 increased with increasing the initial dye concentration.
KeywordsPalm fiber Nanoporous carbon Adsorption Specific surface area
This research was supported by the project of NNSFC (51403052), Science and Technology Project of Henan Province (142102210402) and Science and Technology Project of Zhengzhou (121PPTGG357-2).
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