Photocatalytic reduction of iron (III) by using pure, coupled and sensitized TiO2 in aqueous solution
Joint Authors
al-Ulwani, Asma Hasan
G., Fatimah al-Zahra
al-Qaim, Fuad F.
Source
Journal of Babylon University : Journal of Applied and Pure Sciences
Issue
Vol. 25, Issue 3 (30 Sep. 2017), pp.990-999, 10 p.
Publisher
Publication Date
2017-09-30
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Abstract EN
-–visible light in presence of atmospheric oxygen has been studied .This reaction is effective to convert harmful ions to nontoxic product in water .
Primary experiment have been done to determined optimum condition of photocatalytic reaction .Firstly experiments variable amount TiO2 concentration were used at constant Fe+3 concentration .
It was found that the ideal TiO2 concentration was equal to 0.2 gm/L .
The effect of Fe+3 concentration was studied .The highest photoreduction reaction rate was obtained at 40 ppm of Fe+3 concentration in aqueous suspension containing 0.2 gm /L TiO2 concentration .
The Langmuir – Hinshelwood kinetic model has been applied to calculate apparent rate reaction constant and adsorption constant.
The results shows the rat of photocatalytic reduction reaction was increased when TiO2 was sensitized with riboflavin photosensitizer, but the best photoreduction was obtained by using coupled CdS/TiO2 photocatalytic semiconductors.
Also half life time was calculated and the general photocatalytic reaction mechanism for this reduction process was suggested.
Keywords: TiO2 Semiconductor, photo catalytic reaction, purification of waste water by using semiconductors.
American Psychological Association (APA)
al-Ulwani, Asma Hasan& G., Fatimah al-Zahra& al-Qaim, Fuad F.. 2017. Photocatalytic reduction of iron (III) by using pure, coupled and sensitized TiO2 in aqueous solution. Journal of Babylon University : Journal of Applied and Pure Sciences،Vol. 25, no. 3, pp.990-999.
https://search.emarefa.net/detail/BIM-1221274
Modern Language Association (MLA)
al-Ulwani, Asma Hasan…[et al.]. Photocatalytic reduction of iron (III) by using pure, coupled and sensitized TiO2 in aqueous solution. Journal of Babylon University : Journal of Applied and Pure Sciences Vol. 25, no. 3 (2017), pp.990-999.
https://search.emarefa.net/detail/BIM-1221274
American Medical Association (AMA)
al-Ulwani, Asma Hasan& G., Fatimah al-Zahra& al-Qaim, Fuad F.. Photocatalytic reduction of iron (III) by using pure, coupled and sensitized TiO2 in aqueous solution. Journal of Babylon University : Journal of Applied and Pure Sciences. 2017. Vol. 25, no. 3, pp.990-999.
https://search.emarefa.net/detail/BIM-1221274
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 998-999
Record ID
BIM-1221274