TY  - JOUR
T1  - Comparison Activity of ZnO and ZnO Nanoparticle as Photodegradation Catalysts
AU - Muosa Juda, Amer AU - Hady, Douaa Raheem AU - Alkaim, Ayad F. 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 23
SP  - 10013
EP  - 10018
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.10013.10018
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.10013.10018
KW  - pH
KW  -parameters
KW  -photocatalytic activity
KW  -carmine dye
KW  -Nano ZnO>ZnO
KW  -observed
KW  -activation energy
AB  - This study involves the photocatalytic degradation of Carmine dye, employing heterogeneous photocatalytic process. Photocatalytic activity of different catalysts such as Zinc Oxide (ZnO) and nano ZnO has been investigated. An attempt has been made to study the effect of process parameters through amount of catalysts, concentration of dye, pH of dye solution and temperature on photocatalytic degradation of dye solutions. The optimum catalyst dose was found to be (0.75 g and 1) g\L for nano ZnO, ZnO, respectively. In the case of for nano ZnO, ZnO, maximum rate of photoreaction of dye solutions was observed in acidic medium at pH 4 for ZnO whereas the degradation of dye reached maximum at pH 2 when using nano ZnO catalyst. The performance of photocatalytic system employing nano ZnO/UV light was observed to be better than ZnO/UV system. Photocatalytic degradation was found to increase with increasing temperature. Arrhenius plot shows that the activation energy is equal to 8.07 kJ/mol<sup>-1</sup> with ZnO and 1.2389 kJ/mol<sup>-1</sup> with nano ZnO catalyst. The results display that the action of dissimilar kinds of catalyst used in this research is of the sequence.
ER  -