Sub-3 nm NiO nanoparticles: Controlled synthesis, and photocatalytic activity

详细信息	查看全文 | 推荐本文 |

• 作者：Hanning Duan^a ; Xianfeng Zheng^b ; ^{xianfeng.Zheng@whut.edu.cn} ; Songliu Yuan^a ; ^{yuansl@hust.edu.cn} ; Yu Li^b ; Zhaoming Tian^a ; Zhao Deng^b ; Baolian Su^b ; ^c
• 关键词：Microstructure ; Nanoparticles ; Optical property ; Photocatalysis
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 August, 2012
• 卷：81
• 期：Complete
• 页码：245-247
• 文件大小：608 K

摘要

Organic solution-phase reaction under oxygen atmosphere for synthesis of single crystalline and uniform sub-3 nm NiO nanoparticles has been developed. Larger NiO nanoparticles with diameter about 26 nm can be also prepared by seed-mediated growth method. Optical property of the NiO nanoparticles was conducted by means of UV-vis spectrum, exhibiting obviously blue shift compared with the bulk counterpart due to the quantum confinement effect. The photocatalytic activity in degradation of rhodamine B was also investigated. The results showed that the sub-3 nm NiO nanoparticles exhibit much higher activity for UV-photodegradation than the as-synthesized larger NiO particles and commercial 30 nm nanopowder.