文献类型：期刊文献

英文题名：Characterization and activity of the Ce and N co-doped TiO2 prepared through hydrothermal method

作者：Nasir, Muhammad[1,2];Bagwasi, Segomotso[1,2];Jiao, Yanchao[1,2];Chen, Feng[1,2];Tian, Baozhu[1,2];Zhang, Jinlong[1,2,3]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

年份：2014

卷号：236

起止页码：388

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20134416922576);WOS:【SCI-EXPANDED(收录号:WOS:000328801100041)】；

基金：This work has been supported by the National Nature Science Foundation of China (21173077, and 21237003); the National Basic Research Program of China (973 Program, 2010CB732306, 2013CB632403), the Project of International Cooperation of the Ministry of Science and Technology of China (No. 2011DFA50530); Science and Technology Commission of Shanghai Municipality (12230705000, 12XD1402200); the Research Fund for the Doctoral Program of Higher Education (20120074130001) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Titanium dioxide; Photocatalysis; Cerium; Nitrogen; Co-doping; Hydrothermal process

摘要：The Ce/N co-doped TiO2 was prepared through hydrothermal method by using cerium nitrate and tetrabutyl orthotitanate (TBOT). Samples were characterized by different techniques such as. X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), fourier transformation infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), UV-visible diffuse reflectance spectroscopy (UV-vis. DRS) and photoluminescence spectroscopy (PLS). The XRD and Raman spectra showed only anatase phase of TiO2 for the pure, single doped and co-doped samples. The XPS of Ce showed the presence of both Ce3+ and Ce4+ oxidation states. The PLS of the samples showed first decrease in the recombination centers when Ce was introduced in co-doped TiO2 with the maximum decrease for 0.05 Ce/N co-doped TiO2 and then started increasing with the increase of Ce in the samples. We found a direct relationship between the amount of recombination centers and photoactivity of the samples, which was evaluated by the decolorization of 25 mg/L solution of Acid Orange 7 (AO-7). The activities of co-doped samples were highly increased by the incorporation of Ce with the maximum degradation exhibited by 0.05 Ce/N-TiO2 sample. (C) 2013 Elsevier B.V. All rights reserved.