Synthesis and characterization of P-doped TiO2 thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation

doi:10.1016/S1872-2067(12)60572-5

催化学报 ›› 2013, Vol. 34 ›› Issue (6): 1267-1273.DOI: 10.1016/S1872-2067(12)60572-5

• 研究论文 • 上一篇

Synthesis and characterization of P-doped TiO₂ thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation

R. M. Mohamed^a,b, E. Aazam^a

a Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box: 80203, Jeddah 21589, Saudi Arabia;
b Advanced Materials Department, Central Metallurgical R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo, Egypt

收稿日期:2013-01-21 修回日期:2013-03-04 出版日期:2013-06-07 发布日期:2013-06-09
通讯作者: R. M. Mohamed

Synthesis and characterization of P-doped TiO₂ thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation

R. M. Mohamed^a,b, E. Aazam^a

a Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box: 80203, Jeddah 21589, Saudi Arabia;
b Advanced Materials Department, Central Metallurgical R&D Institute, CMRDI, P.O. Box 87, Helwan, Cairo, Egypt

Received:2013-01-21 Revised:2013-03-04 Online:2013-06-07 Published:2013-06-09

摘要/Abstract

摘要：

P-doped TiO₂ (PTIO) thin-films with different P contents were prepared using a sol-gel method. The thin-film samples were characterized using various techniques. The photocatalytic activity was evaluated by decomposing butyl benzyl phthalate under visible-light irradiation. The results showed that the transformation of anatase to the rutile phase was inhibited and grain growth of TiO₂ was prevented by P doping. The results confirm that the doped P atoms existed in two chemical forms, and those incorporated in the TiO₂ lattice may play a positive role in photocatalysis. The high photocatalytic activities of the PTIO thin-films may be the result of extrinsic absorption through the creation of oxygen vacancies, rather than excitation of the intrinsic absorption band of bulk TiO₂. The PTIO can be recycled with little depression of the photocatalytic activity. After six cycles, the photocatalytic activity of the PTIO film was still higher than 98%.

关键词: Phosphorus-doped, Titania, Thin film, Visible light, Photocatalyst

Abstract:

Key words: Phosphorus-doped, Titania, Thin film, Visible light, Photocatalyst

R. M. Mohamed, E. Aazam. Synthesis and characterization of P-doped TiO₂ thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation[J]. 催化学报, 2013, 34(6): 1267-1273.

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Synthesis and characterization of P-doped TiO₂ thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation

Synthesis and characterization of P-doped TiO₂ thin-films for photocatalytic degradation of butyl benzyl phthalate under visible-light irradiation

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