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Citation: WU Feng-Qing, REN Hui, ZOU Bo, WANG Zhu-Yi, ZHANG Tong, ZOU Le-Hui, XU Bao-Kun. Preparation of TiO₂ Nanocrystalline and Its Sensitive Property to TMA[J]. Acta Physico-Chimica Sinica, ;2005, 21(05): 556-559. doi: 10.3866/PKU.WHXB20050519 shu

Preparation of TiO₂ Nanocrystalline and Its Sensitive Property to TMA

1.
College of Chemistry, Jilin University; College of Electronic Sciences and Engineering, Jilin University, Changchun 130023； College of Biological & Agricultural Engineering, Jilin University, Changchun 130025

Received Date: 8 September 2004
Available Online: 15 May 2005

TiO₂ nanocrystalline material has been synthesized by stearic-acid gel method. The TiO₂ crystal species and grains are characterized by XRD. TEM showed that the TiO₂ grains are spherical and well dispersed. The results of XPS illustrated that the absorbed oxygen on anatase TiO₂ is much more than that on rutile TiO₂. The sensitivity of the two species to trimethylamine (TMA) was studied. The results showed that anatase TiO₂ has much higher sensitivity to TMA than rutile TiO₂. The mechanism of TiO₂ sensitivity to TMA was discussed.
- Nanocrystalline; TiO₂; Sensitivity; TMA; Fish freshness
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation of TiO2 Nanocrystalline and Its Sensitive Property to TMA

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通讯作者: 陈斌, bchen63@163.com

Preparation of TiO₂ Nanocrystalline and Its Sensitive Property to TMA