光谱学与光谱分析 |
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Preparation of Anatase-Type TiO2 Nanoparticals from Ti(SO4)2 Solution under Hydrothermal Conditions and Its Photocatalytic Performance |
LI Hai-long1,ZHU Di1, LIU Ran-ran1,CHEN Tao1, TIAN Wen-yu1, SUN Mao1, LI Chun1, ZHAO Yu-liang2, LIU Chun-li1* |
1. Beijing National Laboratory for Molecular Science, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China 2. Laboratory for Bio-Environmental Health Sciences of Nanoscale Materials and Nanosafety and Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Anatase-type TiO2 fine powders were synthesized under hydrothermal condition. The precursor was obtained via precipitation route using Ti(SO4)2. The characterization of the as-prepared sample was confirmed by TEM, XRD, UV-Vis and low temperature N2 adsorption measurements(BET). The photocatalytic activity was also investigated by the degradation of methyl orange solutions. The particles of the as-synthesized sample with narrow size distribution had an average diameter of about 24 nm. The specific BET surface area of the as-synthesized sample was about 56 m2·g-1,which is similar to the commercial TiO2(P25). The prepared materials showed the similar photocatalytic activity when compared with the performance of commercial TiO2(P25).
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Received: 2009-05-02
Accepted: 2009-08-06
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Corresponding Authors:
LI Hai-long
E-mail: liucl@pku.edu.cn
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