کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
222544 | 464276 | 2013 | 5 صفحه PDF | دانلود رایگان |

• Hexagonal brick-shaped SnO2 (HBSS) was synthesized by using o-phthalic acid.
• Well-dispersed HBSS exhibits a good selectivity and response to triethylamine.
• HBSS is an efficient material for detecting low-concentration amine gases.
Nanosized tin dioxide was synthesized by one-step method using o-phthalic acid and tin tetrachloride as raw materials. The morphology and structure were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The gas-sensing properties of as-synthesized SnO2 were also investigated. The as-synthesized SnO2 shows hexagonal brick-like shape and its size is about 50 nm. The hexagonal brick-shaped SnO2 (HBSS) exhibits high sensitivity and selectivity to low-concentration triethylamine (TEA) at low operating temperature. The maximum response of the well-dispersed HBSS to 1 ppm and 100 ppm TEA is 3 and 70, respectively. The response and recovery time upon exposure to 1 ppm TEA is 3 s and 9 s, respectively, which suggests that the well-dispersed HBSS is an efficient sensor material for detecting low-concentration triethylamine gas.
Journal: Journal of Environmental Chemical Engineering - Volume 1, Issue 4, December 2013, Pages 1380–1384