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发明授权
CN105891287B 微囊藻毒素分子印迹功能化TiO2@CNTs光电传感电极及采用该电极的光电分析方法 失效 - 权利终止

微囊藻毒素分子印迹功能化TiO2@CNTs光电传感电极及采用该电极的光电分析方法
摘要：
本发明涉及一种微囊藻毒素分子印迹功能化TiO2@CNTs光电传感电极及采用该电极的光电分析方法，该电极由基底电极及覆在基底电极表面的MI‑TiO2@CNTs纳米材料组成，所述的MI‑TiO2@CNTs纳米材料由多壁碳纳米管及包裹在多壁碳纳米管外表面的具有MC‑LR原位分子印迹位点的TiO2纳米颗粒层构成。与现有技术相比，本发明的电极大大提高了光电催化性能，对MC‑LR的选择性识别和吸附富集的性能好，光电检测灵敏度高，检测限达到1.0×10‑12mol·L‑1，同时，制备方法简单，分析方法快速简便，且具有良好的重现性，可应用于痕量污染物的检测分析。
摘要（英）：

The invention relates to a microcystic toxin molecular imprinting functionalization TiO2@CNTs photoelectric sensor electrode and a photoelectric analysis method with the same. The electrode is composed of a substrate electrode and an MI-TiO2@CNTs nano-material covering the surface of the substrate electrode. The MI-TiO2@CNTs nano-material is composed of a multiwalled carbon nanotube and a TiO2 nano-particle layer, wherein the TiO2 nano-particle layer wraps the outer surface of the multiwalled carbon nanotube and is provided with MC-LR in-situ molecular imprinting sites. Compared with the prior art, the electrode greatly improves the photoelectric catalytic performance, and is good in selective recognition performance and adsorption enrichment performance for MC-LR and high in photoelectric detection sensitivity, and the limit of detection reaches 1.0*(10-12) mol.L-1; meanwhile, a preparation method is simple, an analysis method is quick and simple, good repeatability is achieved, and the method can be applied to detection analysis on trace contaminants.

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