European Journal of Chemistry 2011, 2(1), 104-108 | doi: https://doi.org/10.5155/eurjchem.2.1.104-108.103 | Get rights and content






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Platinum 1,10-phenanthroline: Photosensitizer for photocatalytic degradation of 4-chlorophenol


Ahmed Kadry Aboul-Gheit (1,*) , Sahar Moustafa Ahmed (2) , Doaa Samir El-Desouki (3) , Samira Mohamed Abdel-Azeem (4) , Mohamed Fathy El-Shahat (5)

(1) Process Development Division, Egyptian Petroleum Research Institute, Nasr City, PO Box 9540, Cairo 11787, Egypt.
(2) Egyptian Petroleum Research Institute, Cairo, EG-11787, Egypt
(3) Egyptian Petroleum Research Institute, Cairo, EG-11787, Egypt
(4) Egyptian Petroleum Research Institute, Cairo, EG-11787, Egypt
(5) Chemistry Department, Faculty of Science, Ain Shams University, Cairo, EG-11787, Egypt
(*) Corresponding Author

Received: 09 May 2010 | Revised: 03 Jan 2011 | Accepted: 08 Dec 2010 | Published: 28 Mar 2011 | Issue Date: March 2011

Abstract


It is more economic to apply photodegradation of organic pollutants in presence of the visible light irradiation (sunlight) than applying more costfull ultraviolet lamps. Hence, platinum 1,10-phenanthroline complex has been prepared and tested as a photosensitizer for photodegrading 4-chlorophenol in water, which has been found almost completely achieved (98.5 %) after three hours of visible irradiation. Nevertheless, irradiation at 364 and 254 nm exhibits lower efficiencies. At visible irradiation, the platinum complex gives the highest activation of singlet state oxygen formation (1O2) compared to 364 and 254 nm irradiation as supported by electron para-magnetic resonance data. On the other hand, the behavior of formation and disappearance of photodegradation intermediates: hydroquinone, benzoquinone, hydroxybenzoquinone, using the platinum complex applying the three current irradiations are found to supports these findings. However, organic acids have accumulated as a function of irradiation time and hence considered to be rate-controlling.

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Keywords


Photosensitizer; 1,10-phenanthroline; 4-Chlorophenol; Pt-complex; Photodegradation; 1O2

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DOI: 10.5155/eurjchem.2.1.104-108.103

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[3]. A. Abolhosseini Sh., A.R. Mahjoub, M. Eslami-Moghadam, H. Fakhri
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[4]. Hugo C. Braga, Cristian A.M. Salla, Ivan H. Bechtold, Adailton J. Bortoluzzi, Bernardo Souza, Hugo Gallardo
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[5]. Zhenzhao Pei, Pei Wang, Zhiguo Li
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How to cite


Aboul-Gheit, A.; Ahmed, S.; El-Desouki, D.; Abdel-Azeem, S.; El-Shahat, M. Eur. J. Chem. 2011, 2(1), 104-108. doi:10.5155/eurjchem.2.1.104-108.103
Aboul-Gheit, A.; Ahmed, S.; El-Desouki, D.; Abdel-Azeem, S.; El-Shahat, M. Platinum 1,10-phenanthroline: Photosensitizer for photocatalytic degradation of 4-chlorophenol. Eur. J. Chem. 2011, 2(1), 104-108. doi:10.5155/eurjchem.2.1.104-108.103
Aboul-Gheit, A., Ahmed, S., El-Desouki, D., Abdel-Azeem, S., & El-Shahat, M. (2011). Platinum 1,10-phenanthroline: Photosensitizer for photocatalytic degradation of 4-chlorophenol. European Journal of Chemistry, 2(1), 104-108. doi:10.5155/eurjchem.2.1.104-108.103
Aboul-Gheit, Ahmed, Sahar Moustafa Ahmed, Doaa Samir El-Desouki, Samira Mohamed Abdel-Azeem, & Mohamed Fathy El-Shahat. "Platinum 1,10-phenanthroline: Photosensitizer for photocatalytic degradation of 4-chlorophenol." European Journal of Chemistry [Online], 2.1 (2011): 104-108. Web. 3 Dec. 2020
Aboul-Gheit, Ahmed, Ahmed, Sahar, El-Desouki, Doaa, Abdel-Azeem, Samira, AND El-Shahat, Mohamed. "Platinum 1,10-phenanthroline: Photosensitizer for photocatalytic degradation of 4-chlorophenol" European Journal of Chemistry [Online], Volume 2 Number 1 (28 March 2011)

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DOI Link: https://doi.org/10.5155/eurjchem.2.1.104-108.103

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