材料科学技术（英文）,
2011, 27(4): 289-295.
1,
,
2,
,
3,
,
4,
,
5,
1.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China
2.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China;Department of Physics & Materials Science,City University of Hong Kong,tat chee Avenue,Kowloon,Hong Kong,China
3.Department of Powder Metallurgy and Special Materials, General Research Institute of Non-Ferrous Metal, Beijing 100088, China
4.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China
5.Department of Physics & Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
基金项目:
the Key Project of Chinese Ministry of Education(107023)
Special Fund of Co-construction of Beijing Education Committee,and City University of Hong Kong Strategic Research Grant (SRG)(7008009)
This study was supported by the Open Foundation of National Laboratory of Mineral Materials of China University of Geosciences(08A006)
Microwave Synthesis of Cuprous Oxide Micro-/Nanocrystals with Different Morphologies and Photocatalytic Activities
Qingwei Zhu
1,
, Yihe Zhang
2,
, Jiajun Wang
3,
, Fengshan Zhou
4,
, Paul K. Chu
5,
1.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China
2.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China;Department of Physics & Materials Science,City University of Hong Kong,tat chee Avenue,Kowloon,Hong Kong,China
3.Department of Powder Metallurgy and Special Materials, General Research Institute of Non-Ferrous Metal, Beijing 100088, China
4.State Key Laboratory of Geological Processes & Mineral Resources, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences Beijing, Beijing 100083, China
5.Department of Physics & Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
Keywords：
Cuprous oxide
Cuprous oxide micro-/nanocrystals were synthesized by using a simple liquid phase reduction process under microwave irradiation. Copper sulfate was used as the starting materials and macromolecule surfactants served as the templates. The morphologies phase and optical properties of them are characterized by X-ray diffraction (XRD), scanning elec-tron microscopy (SEM) and ultraviolet-visible diffuse reflection absorptive spectra (UV-vis/DRS), respectively. The crystals had four different shapes, namely spheres, strips, octahedrons, and dandelions. The photocatalytic behavior of the cuprous oxide particles were investigated by monitoring the degradation of rhodamine B. In spite of the different morphologies, all of the cuprous oxide micro-/nanocrystals exhibited photocatalytic activities under visible light irradiation in the following order: dandelions, strips, spheres, and octahedral crystals. The photocatalytic degradation rates of rhodamine B are 56.37%, 55.68%, 51.83% and 46.16%, respectively. The morphology affects significantly the photocatalytic performance.
参考文献
| [1] |
S. S. Jeong;A. Mittiga;E. Salza;A. Masci;S. Passerini .Electrodeposited ZnO/Cu{sub}2O heterojunction solar cells[J].Electrochimica Acta,2008(5):2226-2231. |
| [2] |
K. Akimoto;S. Ishizuka;M. Yanagita;Y. Nawa;Goutam K. Paul;T. Sakurai .Thin film deposition of Cu_2O and application for solar cells[J].Solar Energy,2006(6):715-722. |
| [3] |
G. Jimenez-Cadena;E. Comini;M. Ferroni;G. Sberveglieri .Synthesis of Cu_2O bi-pyramids by reduction of Cu(OH)_2 in solution[J].Materials Letters,2010(3):469. |
| [4] |
M.Kenward;M.D.Whitmore .A systematic Monte Carlo study of self-assembling amphiphiles in solution[J].The Journal of Chemical Physics,2002(8):3455-3470. |
