TY  - JOUR
TT  - Photocatalytic degradation of methylene blue by waste ZnO catalyst
AU  - Çifçi, Deniz İzlen
PY  - 2017
DA  - December
JF  - Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi
PB  - Pamukkale Üniversitesi
WT  - DergiPark
SN  - 2147-5881
SP  - 748
EP  - 752
VL  - 23
IS  - 6
KW  - Metilen mavisi
KW  - Fotokatalitik oksidasyon
KW  - ZnO
KW  - Atık gerikazanımı
KW  - Katalizör
N2  - The purpose of this study,the usability of the ZnO content of waste which produces from metal wasterecycling industries as a catalyst was investigated for the removal ofmethylene blue by the photocatalytic oxidation process. For this purpose, azinc content powder which is held with the cyclones during recycling of copperand zinc containing waste is used as a catalyst. Properties of waste ZnO weredemonstrated by the SEM-EDX and FTIR analysis. ZnO/UV and ZnO/H2O2/UVprocesses have been investigated in the photocatalytic oxidation experiments.According to obtained results, 95% of methylene blue removal efficiency wasobtained for ZnO (2.5 g/L)/UV and 10 mg/L initial methylene blue. At a highinitial methylene blue concentration (50 mg/L), approximately 99% of methyleneblue removal can be obtained with the addition of 7.5 mM H2O2.According to toxicity (Daphnia Magna) experiment results, immobilization ofDaphnia Magna was observed at 100% at initial methylene blue concentrationwhile it was dropped off 5% at treated samples. As a result, the zinccontaining waste generated in the industries can be used for dye removal withphotocatalytic oxidation process. In this way, the catalyst cost and,consequently operation cost can be reduced in the photocatalytic oxidationprocess, and waste recycling and/or minimization in the waste recyclingindustries will be provided.
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UR  - http://dergipark.org.tr/tr/pub/pajes/issue//377480
L1  - http://dergipark.org.tr/tr/download/article-file/402702
ER  -