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Acta Physico-Chimica Sinica  2008, Vol. 24 Issue (06): 1030-1034    DOI: 10.3866/PKU.WHXB20080620
Preparation of Eu3+ Doped Titania Nanocrystals and Photocatalytic Degradation Partially Hydrolyzed Polyacrylamide
LI Jin-Huan; KANG Wan-Li; YAN Wen-Hua; GUO Yi-Hang; GAO Hong-Feng; LIU Zhong-He
Key Laboratory for Enhanced Oil Recovery of the Education Ministry, Daqing Petroleum Institute, Daqing 163318, Heilongjiang Province, P. R. China; Key Laboratory for PetroleumEngineering of the EducationMinistry, China University of Petroleum, Qingdao 266555, Shandong Province, P. R. China; School of Chemistry, Northeast Normal University, Changchun 130024, P. R. China
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Abstract  Nanocrystals with different Eu3+ doping levels were prepared by sol-gel and hydrothermal synthetic methods using titanium tetraisopropoxide (TTIP) as titanium source. The crystallite size, crystal form, surface shape, composition and optical property of the nanocrystals were characterized by X-ray diffraction patterns, UV-Vis diffuse reflectance spectroscopy, X-ray photoelectron spectroscopy, and inductively coupled plasma atomic emission spectroscopy. The products exhibited anatase phase structure, with an average size of 9 nm, and Eu3+ entered into the crystal cell of TiO2 (interstitial mode) in the form of Eu2O3. Furthermore, the photocatalytic activity of prepared Eu3+ doped TiO2 was studied by degrading partially hydrolyzed polyacrylamide (HPAM) under UV light irradiation. The results showed that HPAM was completely degraded. Ultimate mineralization ratio reached 67% when Eu3+ loading was 2.4% (w). In addition, intermediate products were detected via liquid chromatography/mass spectrometry, and degradation mechanismwas analyzed.

Key wordsEu3+ doped      Sol-gel      Photocatalysis      Degradation      Partially hydrolyzed polyacrylamide     
Received: 03 December 2007      Published: 28 March 2008
MSC2000:  O643.32  
Corresponding Authors: KANG Wan-Li; GUO Yi-Hang     E-mail:;
Cite this article:

LI Jin-Huan; KANG Wan-Li; YAN Wen-Hua; GUO Yi-Hang; GAO Hong-Feng; LIU Zhong-He. Preparation of Eu3+ Doped Titania Nanocrystals and Photocatalytic Degradation Partially Hydrolyzed Polyacrylamide. Acta Physico-Chimica Sinica, 2008, 24(06): 1030-1034.

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