期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 83, 期 -, 页码 40-46出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2015.03.015
关键词
Inorganic compound; Chemical synthesis; Electron microscopy; Surface properties
资金
- National Natural Science Foundation of China [51104194]
- National Key Laboratory of Fundamental Science of Micro/Nanodevice and System Technology (Chongqing University) [2013MS06]
- State Education Ministry
- Fundamental Research Funds for the Central Universities (Chongqing University, PR China) [CDJZR14135501]
We construct hierarchical MnO2 nanosheets @ fiberglass nanostructures via one-pot hydrothermal method without any surfactants. The morphology and structure of MnO2-modified fiberglass composites are examined by focus ion beam scanning electron microscopy (FIB/SEM), X-Ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The birnessite-type MnO2 nanosheets are observed to grow vertically on the surface of fiberglass. Furthermore, the birnessite-type MnO2-fiberglass composites exhibit good ability for degradation of methylene blue (MB) in different pH levels. In neutral solution (pH 6.5-7.0), it achieves a high removal rate of 96.1% (2 h, at 60 degrees C) in the presence of H2O2; and in acidic environment (pH 1.5), 96.8% of MB solution (20 mg/L, 100 mL) is decomposed by oxidation within only 5 min. In principles, the rational design of MnO2 nanosheets-decorated fiberglass architectures demonstrated the suitability of the low-cost MnO2-modified fiberglass nanostructure for water treatment. (C) 2015 Elsevier Ltd. All rights reserved.
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