Synthesis of In2O3 nanoparticle/TiO2 nanobelt heterostructures for near room temperature ethanol sensing. Issue 19 (15th February 2017)

• Record Type: Journal Article
• Authors: Li, Yujie; Yang, Hongru; Tian, Jian; Hu, Xiaolin; Cui, Hongzhi
• Is Part Of: RSC advances. Volume 7:Issue 19(2017)
• Page Start: 11503
• Page End: 11509
• Publication Date: 2017-02-15
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra00011a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The obtained In2 O3 nanoparticle/TiO2 nanobelt heterostructures exhibit a high sensitive toward ethanol at near room temperature of 45 °C and low detection limit of 1 ppm. Abstract : In2 O3 nanoparticle/TiO2 nanobelt heterostructures are prepared via a facile hydrothermal strategy. Plenty of smaller In2 O3 nanoparticles are uniformly deposited onto the surface of TiO2 nanobelts. Compared with pure TiO2 nanobelts and In2 O3 nanoparticles, the obtained In2 O3 nanoparticle/TiO2 nanobelt heterostructures exhibit enhanced ethanol sensing properties at a temperature as low as 45 °C and a low detection limit (1 ppm). The improved sensing properties are mainly attributed to the synergic effect of fast charge transfer of heterostructure and the formation of preferential adsorption sites by the small size of the In2 O3 nanoparticles.