Citation: Xiaojing Hu, Yukun Shi, Baolin Zhu, Shoumin Zhang, Weiping Huang. Highly photostable palladium-loaded TiO₂ nanotubes and the active species in the photodegradation of methyl orange[J]. Chinese Journal of Catalysis, ;2015, 36(2): 221-228. doi: 10.1016/S1872-2067(14)60213-8 shu

Highly photostable palladium-loaded TiO₂ nanotubes and the active species in the photodegradation of methyl orange

Xiaojing Hu ^a,b,c ,
Yukun Shi ^a,b,c ,
Baolin Zhu ^b,c,, ,
Shoumin Zhang ^b,c ,
Weiping Huang ^a,b,c,,

1.
a Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China;

Corresponding author: Baolin Zhu, Weiping Huang,
Received Date: 4 July 2014
Available Online: 18 August 2014
Fund Project: 国家自然科学基金(21373120, 21301098, 21071086, 21271110) (21373120, 21301098, 21071086, 21271110) 111工程(B12015) (B12015) 天津市应用基础研究基金(12JCYBJC13100) (12JCYBJC13100) 天津市自然科学基金(13JCQNJC02000). (13JCQNJC02000)

Highly photostable palladium-loaded TiO₂ nanotubes (Pd/TNTs) were prepared by a simple photo-decomposition method and characterized by inductively coupled plasma, X-ray diffraction, UV-visible light diffuse reflectance spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence spectroscopy, N₂ adsorption-desorption, and photocurrent measurement. TEM images showed that the samples had a tubular structure. XPS results revealed that most of the palladium was present as Pd⁰. The photocatalytic performance was evaluated by monitoring the catalytic activity for the degradation of methyl orange solution under both UV and simulated sunlight irradiation. Pd/TNTs with 0.3 wt% Pd displayed higher activity than P25. The active species in the photocatalytic process were investigated by using different types of active species scavengers. h_vb⁺ was the major reactive species in the photodegradation over the Pd/TNTs.
- Titania nanotube,
- Palladium,
- Active species,
- Photodegradation,
- Methyl orange
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沈阳化工大学材料科学与工程学院沈阳 110142

Highly photostable palladium-loaded TiO2 nanotubes and the active species in the photodegradation of methyl orange

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通讯作者: 陈斌, bchen63@163.com

Highly photostable palladium-loaded TiO₂ nanotubes and the active species in the photodegradation of methyl orange