A comparison of different activated carbon performances on catalytic ozonation of a model azo reactive dye
Küçük Resim Yok
Tarih
2012
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Iwa Publishing
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The objective of this study is to compare the performances of catalytic ozonation processes of two activated carbons prepared from olive stone (ACOS) and apricot stone (ACAS) with commercial ones (granular activated carbon-GAC and powder activated carbon-PAC) in degradation of reactive azo dye (Reactive Red 195). The optimum conditions (solution pH and amount of catalyst) were investigated by using absorbencies at 532, 220 and 280 nm wavelengths. Pore properties of the activated carbon (AC) such as BET surface area, pore volume, pore size distribution, and pore diameter were characterized by N-2 adsorption. The highest BET surface area carbon (1,275 m(2)/g) was obtained from ACOS with a particle size of 2.29 nm. After 2 min of catalytic ozonation, decolorization performances of ACOS and ACAS (90.4 and 91.3%, respectively) were better than that of GAC and PAC (84.6 and 81.2%, respectively). Experimental results showed that production of porous ACs with high surface area from olive and apricot stones is feasible in Turkey.
Açıklama
Anahtar Kelimeler
activated carbon, apricot stone, catalytic ozonation, olive stone, reactive azo dye, reactive red 195
Kaynak
Water Science and Technology
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
66
Sayı
1
