Photocatalytic decolorization of methylene blue dye by zinc oxide powder

Joint Authors

Sadun, Ahmad
Salih, Ahmad
Awdah, Amjad Mirza
Hadi, Salih
Jawad, Ahmad
Fahim, Yahya
Fadl, Anfal

Source

Journal of Babylon University : Journal of Applied and Pure Sciences

Issue

Vol. 22, Issue 9 (31 Dec. 2014), pp.2508-2515, 8 p.

Publisher

University of Babylon

Publication Date

2014-12-31

Country of Publication

Iraq

No. of Pages

8

Main Subjects

Engineering & Technology Sciences (Multidisciplinary)

Topics

Abstract AR

الإزالة اللونية المحفزة ضوئيا لصبغة المثيلين الأزرق في الماء تم اختبارها بواسطة مفاعل ذو إشعاع فوق بنفسجي باستعمال اوكسيد الزنك كشبة موصل محفز ضوئيا.

تأثير العوامل في العملية كتركيز الصبغة الابتدائي، و تركيز العامل المساعد، و الدالة الحامضية على الإزالة اللونية تمت دراستها باستخدام هذا المفاعل.

وجدت مرحلتين للإزالة اللونية المحفزة لصبغة المثيلين الأزرق، الأولى هي الإزالة اللونية السريعة و يعقبها المرحلة الثانية نوعا ما تكون بطيئة.

إن كفاءة الإزالة اللونية للصبغة تزداد كلما قل التركيز الابتدائي لها.

و وجد أن أفضل تركيز لأوكسيد الزنك هو 1500 ملغم لتر- 1.

و وجد أن أفضل دالة حامضية حوالي 7 حيث تقل سرعة التفاعل فوق و أقل من هذه القيمة .

Abstract EN

Photocatalytic decolorization of methylene blue dye (MB) in water has been investig-ated in an immersed UV light irradiation slurry photoreactor using zinc oxide (ZnO) as a semiconductor photocatalyst.

The effects of different parameters such as initial dye concentration, photocatalyst loading, and pH of solution on the decolorization rate of MB have been systematically investigated.

A two-stage photocatalytic decolo-rization of MB, the first stage of fast decolorization rate and the subsequent second stage of rather slow decolorization rate, was found.

The efficiency of decolorization of MB increased as initial MB concentration decreased.

There was the optimal ZnO concentration being around 1500 mg L-1.

The optimal pH was around 7 where reaction rate decreased above and under this pH value.

American Psychological Association (APA)

Awdah, Amjad Mirza& Salih, Ahmad& Hadi, Salih& Jawad, Ahmad& Sadun, Ahmad& Fahim, Yahya…[et al.]. 2014. Photocatalytic decolorization of methylene blue dye by zinc oxide powder. Journal of Babylon University : Journal of Applied and Pure Sciences،Vol. 22, no. 9, pp.2508-2515.
https://search.emarefa.net/detail/BIM-520308

Modern Language Association (MLA)

Awdah, Amjad Mirza…[et al.]. Photocatalytic decolorization of methylene blue dye by zinc oxide powder. Journal of Babylon University : Journal of Applied and Pure Sciences Vol. 22, no. 9 (2014), pp.2508-2515.
https://search.emarefa.net/detail/BIM-520308

American Medical Association (AMA)

Awdah, Amjad Mirza& Salih, Ahmad& Hadi, Salih& Jawad, Ahmad& Sadun, Ahmad& Fahim, Yahya…[et al.]. Photocatalytic decolorization of methylene blue dye by zinc oxide powder. Journal of Babylon University : Journal of Applied and Pure Sciences. 2014. Vol. 22, no. 9, pp.2508-2515.
https://search.emarefa.net/detail/BIM-520308

Data Type

Journal Articles

Language

English

Notes

Text in English ; abstracts in English and Arabic.

Record ID

BIM-520308