We have prepared a type of magnetic mesoporous nanomaterial with aggregation-induced emission properties (Fe₃O₄@mSiO₂@TPA@BA, hence abbr. FSTB) to detect and remove cyanide ions (CN⁻) under magnetic conditions. FSTB has a large specific surface area and improved fluorescence performance to identify CN⁻, and its superparamagnetic behavior plays an important role in removing CN⁻. The magnetic sensor FSTB shows excellent selectivity and anti-interference for the detection of CN⁻ in aqueous solutions. It is obvious from the equation LOD = 3δ/S that the limit of detection (LOD) of FSTB for CN⁻ is significantly lower than the permissible level of CN⁻ in drinkable water recommended by the World Health Organization. Therefore, the magnetic sensor FSTB has a wide range of applications for detecting and removing harmful CN⁻.

中文翻译：

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具有 AIE 特性的磁性介孔纳米材料用于在磁性条件下选择性检测和去除水中的 CN-

我们制备了一种具有聚集诱导发射特性的磁性介孔纳米材料（Fe ₃ O ₄ @mSiO ₂ @TPA@BA，因此缩写为FSTB），以在磁性条件下检测和去除氰化物离子（CN ^-）。FSTB具有较大的比表面积和改进的荧光性能来识别 CN ^-，其超顺磁行为在去除 CN ^-方面起着重要作用。磁性传感器FSTB在检测水溶液中的 CN ^-方面表现出出色的选择性和抗干扰性。从方程 LOD = 3 δ / S很明显FSTB对 CN ^-的检测限 (LOD)显着低于世界卫生组织推荐的饮用水中 CN ^-的允许水平。因此，磁传感器FSTB在检测和去除有害CN ^-方面具有广泛的应用。