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| 论文编号: |
122214O120130069 |
| 第一作者所在部门: |
704组 |
| 中文论文题目: |
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| 英文论文题目: |
Microwave-assisted solvothermal synthesis of Ag-Si codoped TiO2 nanoparticles for enhanced visible light photocatalytic activity
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| 论文题目英文: |
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| 作者: |
陈淑海
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| 论文出处: |
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| 刊物名称: |
Journal of Nanoscience and Nanotechnology
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| 年: |
2013
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| 卷: |
13 |
| 期: |
2 |
| 页: |
1569-1573 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
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| 摘要: |
Ag–Si codoped TiO2 nanoparticles were successfully synthesized via a rapid and energy frugal microwave-assisted solvothermal method. The obtained materials were characterized by XRD, BET, TEM, XPS, and UV-Vis DRS. These characterizations revealed that the obtained materials possessed good crystallinity, small particle size and large surface area. In this system, silicon could enter into the crystal lattice of TiO2, leading to smaller particle size and larger surface area compared to pure TiO2; silver dispersed on the surface of TiO2 particles, contributing to the visible light
response and benefiting the efficient separation of photoelectrons and holes. Thus, the synthesized materials should achieve enhanced photoactivity under visible light irradiation, and that was evaluated by the decomposition of Rhodamine B in the aqueous solution. It was found that the Ag–Si
codoped TiO2 photocatalyst exhibited higher photocatalytic activity compared with pure TiO2 and Ag or Si doped TiO2. The doping amount of the silver showed significant effect on the photocatalytic activity, and the optimal activity was achieved with Ag content of 1 mol%. |
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