Effects of preparation parameters on the textural features of a granular zeolite/activated carbon composite material synthesized from elutrilithe and pitch
作者： Jinghong Ma , Jiandong Tan , Xiongwei Du , Ruifeng Li
DOI: 10.1016/J.MICROMESO.2010.03.027
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摘要: Abstract A granular composite material containing zeolite and activated carbon was prepared from elutrilithe pitch powder. The process consisted of the following steps: pyrolysis pre-shaped raw material, dioxide activation, subsequent hydrothermal transformation aluminosilicate in alkaline solution. resulting exhibited hierarchical pore structure with high surface area porosity as characterized by X-ray diffraction nitrogen adsorption. addition powder enhanced mechanical strength adjusted zeolite-to-carbon ratio. Further, effects preparation parameters on phase composition were investigated. During evolution resulted formation new micropores precursor further enlarged original micropores; textural characteristics mainly depended temperature activation time. Zeolite crystallinity obtained appropriate alkalinity, synthesis
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