Characterization and acetone gas sensing properties of electrospun TiO2 nanorods
Characterization and acetone gas sensing properties of electrospun TiO2 nanorods
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DOI：
10.1016/j.spmi.2015.01.022
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发表时间：
2015-05-01
影响因子：
3.1
通讯作者：
Zhu, Haibin
中科院分区：
文献类型：
--
作者：
Bian, Haiqin;Ma, Shuyi;Zhu, Haibin
在这项工作中，通过煅烧静电纺丝 TiO2/PVP 混合棒合成了随机网络结构的二氧化钛 (TiO2) 纳米棒。研究了纳米棒的结构、光学和丙酮气体传感特性。 TiO2 纳米棒是锐钛矿和金红石结构混合的多晶。 TiO2纳米棒的直径约为500 nm。室温下的光致发光（PL）光谱测量表明，包括两个发射峰的宽发射带约为401和467 nm。该传感器对丙酮（CH3COCH）表现出高响应性、良好的重现性和选择性，在500℃下具有快速响应和恢复时间。此外，还讨论了TiO2纳米棒传感器的丙酮传感机制。 (C) 2015 Elsevier Ltd. 保留所有权利。
In this work, random network structure of titanium dioxides (TiO2) nanorods was synthesized by calcining electrospun TiO2/PVP hybrid rods. Structural, optical and acetone gas sensing properties of the nanorods were investigated. The TiO2 nanorods are polycrystalline with a mixture of anatase and rutile structures. The diameter of TiO2 nanorods is about 500 nm. The photoluminescence (PL) spectra measurement at room temperature revealed that a broad emission band including the two emission peaks are about at 401 and 467 nm. The sensor shows the high response, good reproducibility and selectivity for acetone (CH3COCH) with a fast response and recovery time at 500 degrees C. In addition, the acetone sensing mechanism of the TiO2 nanorods sensors is discussed. (C) 2015 Elsevier Ltd. All rights reserved.