Apricot stone activated carbons adsorption of cyanide as revealed from computational chemistry analysis and experimental study
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study utilizes computational chemistry analysis (molecular dynamics and ab initio simulations) in order to understand the nature of adsorption of cyanide from aqueous solution by activated carbon and to compare the adsorption mechanism between activated and magnetic activated carbons. In addition, real adsorption mechanism of cyanide was investigated by laboratory adsorption tests using apricot plain (AAC) and magnetic activated (AMAC) carbon. The morphology, structure and property of AAC and AMAC were determined by BET, XRD, XRF and magnetometer, respectively. The simulation results reveal that the adsorption mechanism of cyanide on AAC and AMAC is nearly similar. Modifying the graphite surface with magnetite to mimic magnetic activated carbon does not have any significant influence on cyanide adsorption. The experimental results also support this fact to some extent as the maximum monolayer adsorption capacities of AAC and AMAC are very close with each other, 61.56 and 59.71 mg/g, respectively. Although iron impregnation does not significantly affect the removal of cyanide, considering the magnetic property of AMAC which can be removed easily by a magnetic separator, AMAC may be better sorbet than AAC and commercial activated carbon. (C) 2014 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Ab initio simulations, Cyanide, Magnetic activated carbon, Apricot stone
Kaynak
Journal of The Taiwan Institute of Chemical Engineers
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
45
Sayı
5
