DETERMINATION OF ELECTRICAL ENERGY COST OF DECOLORIZATION OF CI ACID ORANGE 7 VIA TIO2-ASSISTED PHOTOCATALYSIS UNDER UV ILLUMINATION IN THE PRESENCE OF H2O2
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gh Asachi Technical Univ Iasi
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Decolorization of C.I. Acid Orange 7 (AO7) via TiO2-assisted photocatalysis under UV illumination in the presence of H2O2 has been investigated. The effect of pH on decolorization efficiency of AO7 was investigated in TiO2/UV/H2O2 process. The performance of TiO2/UV/H2O2 system was also evaluated by using synthetic dye-bath effluent of AO7. Solar driven TiO2 photocatalysis was found significantly efficient for the decolorization and degradation of AO7. The rates of decolorization and degradation of AO7 were found to follow pseudo-first order kinetics. The electrical energy consumption of decolorization of synthetic dye-bath effluent was found to be 4.1 times higher than that of AO7 solution. Similarly, the electrical energy consumption of degradation of synthetic dye-bath effluent was 2.2 times higher than that of AO7 solution under investigated conditions. Considering one order of magnitude reduction in AO7 concentration and COD value, the cost of electrical energy for decolorization and degradation of AO7 solution and synthetic dye-bath effluent of AO7 was calculated.
Açıklama
Anahtar Kelimeler
Acid Orange 7, decolorization, figure of merit, solar light, TiO2/UV/H2O2
Kaynak
Environmental Engineering and Management Journal
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
16
Sayı
9
