Pure ZnO and composite ZnO/TiO2 catalyst plates: A comparative study for the degradation of azo dye, pesticide and antibiotic in aqueous solutions

Topkaya, EYLEM; Konyar, Mehmet; Yatmaz, H.; Ozturk, Koray

doi:10.1016/j.jcis.2014.05.022

Pure ZnO and composite ZnO/TiO2 catalyst plates: A comparative study for the degradation of azo dye, pesticide and antibiotic in aqueous solutions

Atıf İçin Kopyala

Topkaya E., Konyar M., Yatmaz H. C., Ozturk K.

JOURNAL OF COLLOID AND INTERFACE SCIENCE, cilt.430, ss.6-11, 2014 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 430
Basım Tarihi: 2014
Doi Numarası: 10.1016/j.jcis.2014.05.022
Dergi Adı: JOURNAL OF COLLOID AND INTERFACE SCIENCE
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.6-11
Kocaeli Üniversitesi Adresli: Evet

Özet

Photocatalytic degradations of azo dye (RR 180), pesticide (2,4-D) and antibiotic (enrofloxacin) in aqueous solutions were performed and compared by using pure ZnO and ZnO/TiO2 composite (at 1:1 ZnO to TiO2 mole ratio) catalysts in a self-supporting plate form. The plates were produced by tape casting of the constituent powder slurries and sintering at 600 degrees C. Photocatalytic degradations of these pollutants were carried out under UVA and UVC irradiations for 120 min. Maximum degradation was obtained for 2,4-D solution using pure ZnO plates under UVC. Due to the photolysis effect, UVC wavelength yielded higher efficiency values for all the chemicals than UVA. The discrepancy in the photocatalytic performances of the pure ZnO and the ZnO/TiO2 composite plates were not found to be significant. The plates were found to be effective for the consecutive degradation tests which indicated their potentiality in extended applications. (C) 2014 Elsevier Inc. All rights reserved.