期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 23, 页码 6888-6894出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta10886d
关键词
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资金
- National Natural Science Foundation of China [51125001, 51172005, 90922033, 21266031]
- Doctoral Program of the Ministry of Education of China [20120001110078, 20090001120010]
- National Basic Research Program of China [2010CB934601]
- Aerostatic Science Fund [2010ZF71003]
- Beijing Municipal Outstanding Talent Fund [2009D013001000013]
- Fok Ying Tong Foundation [122043]
- Scientific and Technological Assistance Projects in Xinjiang [201191102]
In this work, alpha-Fe2O3 oblique and truncated nanocubes were synthesized in the presence of oleylamine (OAm), acetylacetone (Hacac) and oleic acid (OA) through a facile one-step solvothermal method. The phase of iron oxide was precisely regulated through the volume ratio of OAm/Hacac, and confirmed by X-ray diffraction (XRD) and Raman imaging microscopy. The formation mechanism of alpha-Fe2O3 nanocrystals was discussed systematically and a schematic illustration of the probable formation of the morphologies in the whole of the synthetic process was also proposed. Furthermore, the truncated nanocubes exposing both the {012} and {104} dominant planes exhibit higher photocatalytic activity toward RhB compared with the oblique nanocubes surrounded by only the {012} dominant facet, which reveals that the high photocatalytic activity is attributed to the exposure of {104} high-index planes. The truncated nanocubes with high catalytic activity may potentially serve as effective and cheap catalysts for photodegradation.
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