Preparation of silver-loaded titanium dioxide hedgehog-like architecture composed of hundreds of nanorods and its fast response to xylene.

Author(s) Zhang, Y.; Bai, J.; Zhou, L.; Liu, D.; Liu, F.; Liang, X.; Gao, Y.; Liu, F.; Yan, X.; Lu, G.
Journal J Colloid Interface Sci
Date Published 2019 Feb 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.

DOI 10.1016/j.jcis.2018.10.035
ISSN 1095-7103
Citation J Colloid Interface Sci. 2019;536:215223.

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