期刊
MATERIALS LETTERS
卷 145, 期 -, 页码 111-114出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.01.099
关键词
Semiconductors; Solar energy materials; Thin films
资金
- 521 Talent Project of ZSTU
- Scientific Research Foundation (SRF) for the Returned Overseas Chinese Scholars (ROCS), State Education Ministry (SEM)
We herein report the reassembly of individual titanate nanosheets (TNSs) that were exfoliated from layered titanates to form a free-standing photocatalytic film by vacuum filtration. This TNSs film was characterized with high orientation, as well as excellent light transparency and flexibility. With the presence of H2O2, an extremely high activity and stability of the TNSs film were achieved for photo-decomposing Rhodamine B (RhB) using a 9 W fluorescent lamp. A possible mechanism was proposed that the modification of -OOH groups enlarged the spectral region to visible light and high separation rate of photogenerated carriers was realized by transferring electrons on conduction band to H2O2. The trapping experiments of active species demonstrated that holes on valence band are the main oxidant species. (C) 2015 Elsevier B.V. All rights reserved.
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