Preparation method and application of electrochemiluminescent bisphenol A biosensor based on nitrogen-doped titanium dioxide nanosheet
A biosensor, titanium dioxide technology, applied in chemiluminescence/bioluminescence, analysis through chemical reaction of materials, scientific instruments, etc., can solve the problems of low sensitivity, poor conductivity, and unfavorable practical application of electrochemiluminescence sensors , to achieve the effect of increasing the intensity of electrochemiluminescence, improving the intensity and stability, and improving the ability of resonance energy transfer
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Embodiment 1
[0037] Example 1 FeMn-NTiO 2 preparation of
[0038] First, take 0.8mmol of iron salt, 0.8mmol of manganese salt and 1mmol of ammonium salt and add them to 5mL of tetrabutyl titanate. During stirring, slowly add 0.5mL of hydrofluoric acid, react in the reactor at 160°C for 24 hours, and cool After reaching room temperature, centrifuge and wash with ultrapure water and absolute ethanol three times, then vacuum-dry at 50°C; then, put the ground powder into a muffle furnace with a heating rate of 1°C / min, and calcinate at 480°C for 60min ; Finally, the calcined powder is cooled to room temperature to obtain FeMn-NTiO 2 ;
[0039] Described iron salt is ferric sulfate;
Embodiment 2
[0042] Example 2 FeMn-NTiO 2 preparation of
[0043] First, add 0.8mmol of iron salt, 1.0mmol of manganese salt and 1mmol of ammonium salt into 5mL of tetrabutyl titanate. During stirring, slowly add 0.65mL of hydrofluoric acid, react in the reactor at 180°C for 21 hours, and cool After reaching room temperature, centrifuge and wash three times with ultrapure water and absolute ethanol, then vacuum-dry at 50°C; then, put the ground powder into a muffle furnace with a heating rate of 2°C / min, and calcinate at 520°C for 30min ; Finally, the calcined powder is cooled to room temperature to obtain FeMn-NTiO 2 ;
[0044] Described iron salt is ferric chloride;
[0045] Described manganese salt is manganese chloride;
[0046] Described ammonium salt is ammonium chloride.
Embodiment 3
[0047] Example 3 FeMn-NTiO 2 preparation of
[0048] First, take 0.8mmol of iron salt, 1.2mmol of manganese salt and 1mmol of ammonium salt and add them to 5mL of tetrabutyl titanate. During the stirring process, slowly add 0.8mL of hydrofluoric acid, react in the reactor at 200°C for 18 hours, and cool After reaching room temperature, centrifuge and wash three times with ultrapure water and absolute ethanol, and then vacuum-dry at 50°C; then, put the ground powder into a muffle furnace with a heating rate of 3°C / min, and calcinate at 560°C for 10 min ; Finally, the calcined powder is cooled to room temperature to obtain FeMn-NTiO 2 ;
[0049] Described iron salt is ferric nitrate;
[0050] Described manganese salt is manganese nitrate;
[0051] Described ammonium salt is ammonium nitrate.
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