期刊
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
卷 424, 期 -, 页码 153-161出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molcata.2016.08.007
关键词
CuFe2O4; Hydroxyl radicals; Catalytic ozonation
资金
- Assembly Foundation of The Industry and Information Ministry of the People's Republic of China [2012 (543)]
- National Natural Science Foundation of China [51408309, 51578288]
- Science and Technology Support Program of Jiangsu Province [BE2014713]
- Natural Science Foundation of Jiangsu Province [BK20140777]
- Industry-Academia Cooperation Innovation Fund Projects of Jiangsu Province [BY2014004-10]
- Science and technology project of Nanjing [201306012]
- Jiangsu Province Scientific and Technological Achievements into a Special Fund Project [BA2015062]
- Priority Academic Program Development of Jiangsu Higher Education of Jiangsu Higher Education Institutions
In this paper, copper ferrite(CuFe2O4), prepared by a hydrothermal method, was successfully utilized in catalytic ozonation for NOx removal. CuFe2O4 shows higher activity (83%) than both CuO (79%) and Fe2O3 (70%). Hydroxyl radicals (center dot OH) have been detected in the catalytic ozonation process, which has been confirmed to determine the catalytic performance of NOx removal. Compared to CuO and Fe2O3, CuFe2O4 exhibits more surface hydroxyl groups and oxygen vacancies, indicating that the synergetic effect of the surface hydroxyl groups and oxygen vacancies plays an important role in the enhancement of the generation of hydroxyl radicals, thus the catalytic activity. A possible mechanism for the catalytic ozonation of NOx was proposed. (C) 2016 Elsevier B.V. All rights reserved.
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