- Tytuł:
- Decolourization of tartrazine from aqueous solutions by coupling electrocoagulation with ZnO photocatalyst
- Autorzy:
-
Modirshahla, N.
Abdoli, M.
Behnajady, M. A.
Vahid, B. - Powiązania:
- https://bibliotekanauki.pl/articles/207693.pdf
- Data publikacji:
- 2013
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
zinc oxide
coagulation
decolourization
electrocoagulation
tartrazine
C.I. Acid Yellow 23
AY23
colour removal
color removal
tlenek cynku
koagulacja
odbarwianie
koagulacja za pomocą elektrolitu
elektrokoagulacja
tartrazyna
żółcień spożywcza
żółcień kwasowa 23
barwniki azowe
usuwanie koloru - Opis:
- Decolourization of tartrazine (C.I. Acid Yellow 23, AY23) in aqueous solutions has been investigated by coupling electrocoagulation and ZnO photocatalyst methods and also by a comparison between ZnO, UV, EC, UV/ZnO, UV/EC, and EC/UV/ZnO systems in the removal of AY23 as a model contaminant. Results indicated that the decolourization efficiency was in order of EC/UV/ZnO > UV/EC > EC > UV/ZnO > ZnO > UV. Combining EC with UV/ZnO can trigger the Fenton or Fenton-like reaction, which accelerates the rate of decolourization. Desired operating conditions for decolourization of 40 mg·dm-3 AY23 solution in EC/UV/ZnO process were [ZnO] 0=650 mg·dm-3, [NaCl] = 800 mg·dm-3, light intensity = 31/2 W·m-2, current density = 120 A·m-2, electrodes distance = 15 mm, pH = 6.29, stirring rate = 900 rpm and electrodes of steel 304/A1, which yielded 99.70% colour removal in 5 min of treatment time.
- Źródło:
-
Environment Protection Engineering; 2013, 39, 1; 59-73
0324-8828 - Pojawia się w:
- Environment Protection Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł