UV-Activated Au Modified TiO₂/In₂O₃ Hollow Nanospheres for Formaldehyde Detection at Room Temperature.

ABSTRACT: Au modified TiO₂/In₂O₃ hollow nanospheres were synthesized by the hydrolysis method using the carbon nanospheres as a sacrificial template. Compared to pure In₂O₃, pure TiO₂, and TiO₂/In₂O₃ based sensors, the Au/TiO₂/In₂O₃ nanosphere-based chemiresistive-type sensor exhibited excellent sensing performances to formaldehyde at room temperature under ultraviolet light (UV-LED) activation. The response of the Au/TiO₂/In₂O₃ nanocomposite-based sensor to 1 ppm formaldehyde was about 5.6, which is higher than that of In₂O₃ (1.6), TiO₂ (2.1), and TiO₂/In₂O₃ (3.8). The re

SUBMITTER: Zhang S 

PROVIDER: S-EPMC10254182 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature