期刊
JOURNAL OF ENERGY CHEMISTRY
卷 23, 期 2, 页码 136-144出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S2095-4956(14)60128-5
关键词
K4Nb6O17; nanosheets; nanoscrolls; photodegradation; dye
资金
- National Natural Science Foundation of China [21073084, 20773065]
- Natural Science Foundation of Jiangsu Province [BK2011438]
- 973 Project [2009CB623504]
- Specialized Research Fund for the Doctoral Program of Higher Education [20130091110010]
- Modern Analysis Center of Nanjing University
H+-restacked nanosheets and nanoscrolls peeled from K4Nb6O17 display different structures and surface characters. The two restacked samples with increased surface areas have an amazing visible-light response for the photodegradation of dyes, which is superior to commercial TiO2 (P25) and Nb2O5. By comparison, H+/nanosheets have a relatively faster photodegradation rate originated from large and smooth basal plane. The work reveals that dye adsorbed on the unfolded nanosheets can effectively harvest sunlight. Due to facile preparation, low-cost and high photocatalytic efficiency, H+/nanosheets and H+/nanoscrolls might be used for the visible light-driven degradation of organic dyes as a substitute for TiO2 in industry.
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