A preparation method and application of an electrochemical diethylstilbestrol sensor based on a titanium dioxide-based two-dimensional nanocomposite material
A technology of diethylstilbestrol and titanium dioxide, which is applied in the direction of scientific instruments, analytical materials, and material analysis by electromagnetic means, can solve the problems of unfavorable practical application, poor conductivity, and low sensitivity of electrochemical sensors, so as to increase electron transfer capacity and improve Effects of strength and stability, enhancement of resonance energy transfer capability
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Embodiment 1
[0034] Example 1 FeCo-N@TiO 2 preparation of
[0035]First, add 0.8 mmol of iron salt, 0.8 mmol of cobalt salt and 1 mmol of ammonium salt into 5 mL of tetrabutyl titanate, slowly add 0.5 mL of hydrofluoric acid during stirring, and react in the reactor at 160 °C for 24 hours , cooled to room temperature, centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum-dried at 50 °C; then, the ground powder was put into a muffle furnace with a heating rate of 1 °C / min at 480 °C Calcined for 60 min; finally, the calcined powder was cooled to room temperature to obtain FeCo-N@TiO 2 ;
[0036] Described iron salt is ferric sulfate;
[0037] Described cobalt salt is cobalt sulfate;
[0038] Described ammonium salt is ammonium sulfate.
Embodiment 2
[0039] Example 2 FeCo-N@TiO 2 preparation of
[0040] First, add 0.8 mmol of iron salt, 1.0 mmol of cobalt salt and 1 mmol of ammonium salt into 5 mL of tetrabutyl titanate, slowly add 0.65 mL of hydrofluoric acid during stirring, and react in the reactor at 180 °C for 21 hours , cooled to room temperature, centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum-dried at 50 °C; then, the ground powder was put into a muffle furnace with a heating rate of 2 °C / min, at 520 °C Calcined for 30 min; finally, the calcined powder was cooled to room temperature to obtain FeCo-N@TiO 2 ;
[0041] Described iron salt is ferric chloride;
[0042] Described cobalt salt is cobalt chloride;
[0043] Described ammonium salt is ammonium chloride.
Embodiment 3
[0044] Example 3 FeCo-N@TiO 2 preparation of
[0045] First, add 0.8 mmol of iron salt, 1.2 mmol of cobalt salt and 1 mmol of ammonium salt into 5 mL of tetrabutyl titanate, slowly add 0.8 mL of hydrofluoric acid during stirring, and react in the reactor at 200 °C for 18 hours , after cooling to room temperature, centrifuged and washed three times with ultrapure water and absolute ethanol, and then vacuum-dried at 50°C; then, the ground powder was put into a muffle furnace with a heating rate of 3°C / min, at 560°C Calcined for 10 min; finally, the calcined powder was cooled to room temperature to obtain FeCo-N@TiO 2 ;
[0046] Described iron salt is ferric nitrate;
[0047] Described cobalt salt is cobalt nitrate;
[0048] Described ammonium salt is ammonium nitrate.
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