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基于荧光硅纳米粒子的乙醇检测应用研究
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Abstract:
在常温常压下，以N-(2-氨乙基)-3-氨丙基三乙氧基硅烷作为硅源，以2,4-二氨基苯酚盐酸盐作为还原剂，在一定条件下，通过一锅合成法，成功制备了具有荧光性质同时对乙醇响应的硅纳米粒子。这一制备方法克服了激光等离子体辅助合成法、电化学刻蚀法、微波辅助合成法等制备方法操作复杂，设备要求高等缺点，该方法不仅操作简便，而且能够通过优化实验条件，进一步优化硅纳米粒子的荧光性能。制备的硅纳米粒子不仅具有优异的光学性能，并且对乙醇具有灵敏的响应能力，在较大的浓度范围内，硅纳米粒子的荧光强度与乙醇的浓度之间呈现良好的线性关系，为其在乙醇的检测领域的应用提供了可能性，并拓展了硅纳米粒子在更多领域的应用前景。
Under normal temperature and pressure, silicon nanoparticles with fluorescent properties and response to ethanol were successfully prepared by a one-pot synthesis method using N-(2- aminoethyl)-3-aminopropyltriethoxysilane as the silicon source and 2,4-diaminophenol hydrochloride as the reducing agent. This method overcomes the shortcomings of laser plasma-assisted synthesis, electrochemical etching, microwave-assisted synthesis and other preparation methods with complex operation and high equipment requirements, and the method is not only easy to operate, but also can further optimize the fluorescence performance of silicon nanoparticles by optimizing the experimental conditions. The prepared silicon nanoparticles not only have excellent optical properties, but also have a sensitive response to ethanol, and there is a good linear relationship between the fluorescence intensity of silicon nanoparticles and the concentration of ethanol in a large concentration range, which provides the possibility of its application in the field of ethanol detection and expands the application prospect of silicon nanoparticles in more fields.
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