Abstract
Nitrogen dioxide is one origin of air pollution from fossil fuels with the potential to cause great harm to human health in low concentrations. Therefore, low-cost, low-power-consumption sensors for low-concentration NO2 detection are essential. Herein, heterojunction by SnO2 quantum wires, a traditional metal oxide NO2 sensing material, and Ti3C2Tx MXene, a novel type of 2D layered material, was synthesized using a simple solvothermal method for enhancing gas-sensing performance and reducing operating temperature. The operating temperature was reduced to 80 °C, with a best performance of 27.8 and a fast response and recovery time (11 s and 23 s, respectively). The SnO2 and Ti3C2Tx MXene composite exhibits high speed and low detection limit due to the construction of the heterojunction with high conductive Ti3C2Tx MXene. The selectivity and stability of gas sensors are carried out. This could enable the realization of fast response, high-sensitivity, and selective NO2 sensing under low operating temperatures.
Funder
Key Research and Development Program of Guangdong Province
Special Projects in Key Fields of Colleges in Guangdong Province
Research Project in Fundamental and Application Fields of Guangdong Province
Guangdong Basic and Applied Basic Research Foundation
Shenzhen Science & Technology Project
National Natural Science Foundation of China
Natural Science Foundation of Nanjing Vocational University of Industry Technology
Subject
General Materials Science,General Chemical Engineering
Reference50 articles.
1. Electrochemical Detection of Environmental Pollutants Based on Graphene Derivatives: A Review;Kumunda;Front. Mater.,2021
2. Mirzaei, A., Ansari, H.R., Shahbaz, M., Kim, J.Y., Kim, H.W., and Kim, S.S. (2022). Metal Oxide Semiconductor Nanostructure Gas Sensors with Different Morphologies. Chemosensors, 10.
3. High-performance NO2-gas sensing of ultrasmall ZnFe2O4 nanoparticles based on surface charge transfer;Li;J. Mater. Chem. A,2019
4. The coronavirus is most deadly if you are old and male;Mallapaty;Nature,2020
5. Selective ppb-level NO2 gas sensor based on SnO2-boron nitride nanotubes;Sharma;Sens. Actuators B Chem.,2021
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