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- W2063828835 abstract "Activated carbons were prepared from carbonized PET by steam activation via pretreatment by mixing PET with a metal salt [Ca(NO3)2·4H2O, Ca(OH)2, CaCO3, ZnO, and AlNH4(SO4)2·12H2O], and with acid treatment after carbonization. The porous properties of the activated carbons were determined by the nitrogen adsorption method. The adsorption isotherms of CO2, C2H6, nC4H10 and iC4H10 at 298 K on the prepared activated carbons were measured to determine practical applications and to obtain a better understanding of the porous structure of the prepared carbons. Steam-activated carbons via pretreatment have a larger mesoporosity than carbons with no pretreatment. The metal salt used in the pretreatment for steam activation has no influence on the microporous structure, but it does influence the mesoporous structure of the prepared carbons. Activated carbons prepared via pretreatment show a large adsorption capacity for nC4H10 and iC4H10. These carbons are suitable as adsorbents for canisters, etc. Application of the potential theory to adsorption data for the prepared carbons suggests that the pretreatment contributes to the formation of pores larger than 0.50 nm at high burnoff." @default.
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- W2063828835 date "2003-01-01" @default.
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- W2063828835 title "Gas adsorption on activated carbons from PET mixtures with a metal salt" @default.
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- W2063828835 doi "https://doi.org/10.1016/s0008-6223(02)00404-9" @default.
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