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Citation: 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[J]. Acta Physico-Chimica Sinica, ;2008, 24(06): 1030-1034. doi: 10.3866/PKU.WHXB20080620 shu

Preparation of Eu³⁺ Doped Titania Nanocrystals and Photocatalytic Degradation Partially Hydrolyzed Polyacrylamide

1.
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

Received Date: 3 December 2007
Available Online: 28 March 2008

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.
- Eu3+ doped; Sol-gel; Photocatalysis; Degradation; Partially hydrolyzed polyacrylamide
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation of Eu3+ Doped Titania Nanocrystals and Photocatalytic Degradation Partially Hydrolyzed Polyacrylamide

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通讯作者: 陈斌, bchen63@163.com

Preparation of Eu³⁺ Doped Titania Nanocrystals and Photocatalytic Degradation Partially Hydrolyzed Polyacrylamide