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KMID : 1024520150240111463
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Journal of the Environmental Sciences
2015 Volume.24 No. 11 p.1463 ~ p.1471
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Characteristics of Surface Modified Activated Carbons Prepared Using P2O5 and Their Adsorptivity of Bisphenol A
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Lee Min-Gyu
Kim Myeong-Chan
Kam Sang-Kyu
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Abstract
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The surface modified activated carbons (SMACs) were prepared with various P2O5 concentrations using two activated
carbons (ACs: waste citrus peel-based activated carbon and coconut-based activated carbon). The characteristics and
adsorptivity of bisphenol A (one of phenolic endocrine disrupting chemicals) were compared between ACs and SMACs. The contents of C, H and N of SMACs were similar to those of ACs, but the content of P2O5 for the former increased greatly than for the latter, due to the impregnation of P2O5 into the pores. The specific surface area, total pore volume, average pore diameter and iodine adsorptivity for the former decreased due to the impregnation of P2O5 into the pores, compared to those for the latter. The adsorptivity of bisphenol A for the former were higher than that for the latter, although specific surface area, total pore volume, average pore diameter and iodine adsorptivity for the former were lower than those for the latter.
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KEYWORD
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Bisphenol A, Activated carbon, P2O5, Surface modification, Adsorption
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