载银二氧化钛刺猬状结构的制备，由数百根纳米棒组成，对二甲苯有快速响应。
Preparation of silver-loaded titanium dioxide hedgehog-like architecture composed of hundreds of nanorods and its fast response to xylene.
机构信息
State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province and College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
出版信息
J Colloid Interface Sci. 2019 Feb 15;536:215-223. doi: 10.1016/j.jcis.2018.10.035. Epub 2018 Oct 15.
Hedgehog-like titanium dioxide (TiO) architectures composed of hundreds of one-dimensional (1D) nanorods and silver (Ag) loaded TiO with different amounts (0.2 at%, 0.5 at% and 1 at%) were successfully prepared by facile hydrothermal process and simple isometric impregnation route. The high electron mobility of 1D nanorods on the surface of TiO and the high porosity of Ag loaded hedgehog-like TiO architectures enable the sensor with fast responsive and recovered properties. TiO loaded with 0.5 at% Ag exhibited the highest response to xylene with low response/recovery time at the operating temperature of 375 °C. In addition, the sensitivity and selectivity of the TiO sensor were enhanced markedly with Ag loading.
通过简单的水热法和简单的等体积浸渍法，成功制备了由数百根一维（1D）纳米棒组成的具有类刺猬结构的二氧化钛（TiO）和负载不同量银（Ag）的 TiO（0.2 原子%、0.5 原子%和 1 原子%）。1D 纳米棒在 TiO 表面的高电子迁移率和负载有 Ag 的 TiO 类刺猬结构的高多孔性使传感器具有快速响应和恢复的特性。在 375°C 的工作温度下，负载 0.5 原子%Ag 的 TiO 对二甲苯表现出最高的响应，响应/恢复时间也较短。此外，Ag 负载显著提高了 TiO 传感器的灵敏度和选择性。
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