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Needle-Shaped WO3 Nanorods for Triethylamine Gas Sensing
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-08-10 , DOI: 10.1021/acsanm.0c01731 Qi Hu 1, 2, 3 , Jiaqi He 1 , Junyu Chang 1, 3 , Jianmei Gao 1, 3 , Jiahui Huang 2 , Liang Feng 1
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-08-10 , DOI: 10.1021/acsanm.0c01731 Qi Hu 1, 2, 3 , Jiaqi He 1 , Junyu Chang 1, 3 , Jianmei Gao 1, 3 , Jiahui Huang 2 , Liang Feng 1
Affiliation
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The accurate and rapid monitoring of triethylamine (TEA) is highly desired for human health, environmental protection, and food safety. Herein, we have fabricated a WO3 sample with a morphology of needle-shaped nanorods via a simple hydrothermal method and subsequent calcination. The WO3 needle-shaped nanorods with 5 μm length and 400 nm diameter possess a uniform and homogeneous morphology, which avails large-scale industrialization. The sensing based on needle-shaped WO3 nanorods exhibits an ultrasensitive response to TEA, with a response up to 6.7 toward 1 ppm TEA at 250 °C. The outstanding selectivity and repeatability are observed as well. The excellent sensing performance is tentatively attributed to the uniform and large-scale morphology, highly active C–N bonds in TEA, and the effective interaction between WO3 and TEA. Furthermore, the sensor is directly employed to monitor the TEA given off from a grass carp in 48 h, and a good linearity (R2 = 0.996) between the response and preserving time is obtained, proving its promising prospect in daily use. The architecture strategy opens an available route for large-scale practical fabrication of WO3 needle-shaped nanorods, and it is a pioneering attempt to apply the sensor for trace TEA detection in marine food safety testing.
中文翻译：
三乙胺气体感测的针状WO 3纳米棒
准确，快速地监测三乙胺（TEA）对于人类健康，环境保护和食品安全是非常需要的。在这里，我们通过简单的水热法和随后的煅烧制备了具有针状纳米棒形态的WO 3样品。长度为5μm，直径为400 nm的WO 3针状纳米棒具有均一且均匀的形态，可以大规模工业化。基于针状WO 3的传感纳米棒表现出对TEA的超灵敏响应，在250°C下对1 ppm TEA的响应高达6.7。还观察到了出色的选择性和可重复性。优异的感测性能暂时归因于均匀且大规模的形貌，TEA中的高活性C–N键以及WO 3与TEA之间的有效相互作用。此外，该传感器可直接用于监测草鱼在48小时内释放的TEA，并且在响应和保存时间之间具有良好的线性关系（R 2 = 0.996），证明了其在日常使用中的广阔前景。该体系结构策略为WO 3的大规模实际制造开辟了一条可行的途径。 针状纳米棒，这是将传感器用于海洋食品安全测试中痕量TEA检测的开创性尝试。
更新日期：2020-09-25
中文翻译：
三乙胺气体感测的针状WO 3纳米棒
准确，快速地监测三乙胺（TEA）对于人类健康，环境保护和食品安全是非常需要的。在这里，我们通过简单的水热法和随后的煅烧制备了具有针状纳米棒形态的WO 3样品。长度为5μm，直径为400 nm的WO 3针状纳米棒具有均一且均匀的形态，可以大规模工业化。基于针状WO 3的传感纳米棒表现出对TEA的超灵敏响应，在250°C下对1 ppm TEA的响应高达6.7。还观察到了出色的选择性和可重复性。优异的感测性能暂时归因于均匀且大规模的形貌，TEA中的高活性C–N键以及WO 3与TEA之间的有效相互作用。此外，该传感器可直接用于监测草鱼在48小时内释放的TEA，并且在响应和保存时间之间具有良好的线性关系（R 2 = 0.996），证明了其在日常使用中的广阔前景。该体系结构策略为WO 3的大规模实际制造开辟了一条可行的途径。 针状纳米棒，这是将传感器用于海洋食品安全测试中痕量TEA检测的开创性尝试。
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