عنوان المقالة:التحسين المعنوي لنشاط التحفيز الضوئي لأكسيد الزنك عن طريق استخراج صبغة الأنثوسيانين والضوء الشمسي SIGNIFICANT ENHANCEMENT OF PHOTOCATALYTIC ACTIVITY OF ZINC OXIDE BY EXTRACTED ANTHOCYANIN PIGMENT AND SOLAR LIGHT
هدى جاسم محمد التميمي، مروة محمد علي، حازم يحيى الجبوري
المؤلفون بالإنجليزي
Huda J. M. Altameme and Marwa M. Ali Hazim Y. Al-Gubury
الملخص العربي
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الملخص الانجليزي
Sensitized zinc oxide semiconductor was prepared using different masses of anthocyaninstain (0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8and 1)g. Each mass of dye mixing with 1g of zinc oxide using a Pyrex reactor with capacity of (100 cm3), the suspensionsolution was irradiated with a solar lamp at 298K. Prepared sensitized zinc oxide was used as a photo catalyst for the treatmentof waste water, malachite green stain was used as a model compound. Many experiments were used to optimize the experimentalfactors. First set of experiments include studying the effect of sensitized zinc oxide masses were used with a constantconcentration of malachite green. It was found that 94.78% of sensitized zinc oxide gave the highest photo degradation rate.The second set of experiments sensitized zinc oxide concentration was constant at 0.16g with different concentration ofmalachite green, the optimum rate constant was obtained at 50mg/L of malachite green. The photodegradation of malachitegreen decreased in the presence of high concentrations of malachite green. The highest photodegradation rate was obtainedat pH = 9.
ا.د. هدى جاسم محمد التميمي | Prof. Dr. Huda Jasim Mohammed Altameme | 8702