A preparation method of photoelectrochemical furazolidone sensor based on bimetallic co-doped two-dimensional photosensitizer
A technology of furazolidone and photoelectrochemistry, which is applied in the field of preparation of photoelectrochemical furazolidone sensors, can solve the problems of low sensitivity of photoelectrochemical sensors, weakening of photoelectric signals, unfavorable practical applications, etc., and achieve broadening the range of photosensitive wavelengths, saving time, increasing The effect of photocatalytic activity
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Embodiment 1
[0042] Example 1 FeMn-TiO 2 / MoS 2 preparation of
[0043] (1) Add 0.6 g of molybdenum disulfide powder, 0.2 mmol of iron salt and 0.2 mmol of manganese salt into 3 mL of n-butyllithium solution, and stir for 12 hours under nitrogen protection at 60 °C to obtain the reacted solution;
[0044] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 60 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain iron , Molybdenum disulfide nanomaterials co-intercalated with manganese;
[0045] (3) Add 500 mg of molybdenum disulfide nanomaterials co-intercalated with iron and manganese prepared in step (2) into 5 mL of tetrabutyl titanate, and after stirring for 1 hour, slowly add 0.5 mL of hydrofluoric acid while stirring acid, then reacted in a reactor at 160°C for 18 hours;
[0046] (4) The reaction product obtained in step (3) was centrifuged and washed thre...
Embodiment 2
[0052] Example 2 FeMn-TiO 2 / MoS 2 preparation of
[0053] (1) Add 0.6 g of molybdenum disulfide powder, 1.0 mmol of iron salt and 1.0 mmol of manganese salt into 5 mL of n-butyllithium solution, and stir for 24 hours under nitrogen protection at 30 °C to obtain the reacted solution;
[0054] (2) Wash the reacted solution in step (1) with a non-polar solvent, and then perform ultrasonic treatment in a water bath at 30 °C. After the treatment, wash the treated solution with a non-polar solvent, and dry it in vacuum to obtain iron , Molybdenum disulfide nanomaterials co-intercalated with manganese;
[0055] (3) Add 200 mg of molybdenum disulfide nanomaterials co-intercalated with iron and manganese prepared in step (2) into 5 mL of tetrabutyl titanate, stir for 1 hour, then slowly add 0.6 mL of hydrofluoric acid while stirring acid, then reacted in a reactor at 180°C for 20 hours;
[0056] (4) The reaction product obtained in step (3) was centrifuged and washed three times w...
Embodiment 3
[0062] The preparation method of embodiment 3 photoelectrochemical furazolidone sensor
[0063] (1) Use an ITO conductive glass with a width of 1 cm and a length of 4 cm as a working electrode, and drop-coat 8 µL of FeMn-TiO on the surface of the electrode 2 / MoS 2 Sol, dry at room temperature;
[0064] (2) Wash the electrode obtained in step (1) with the buffer solution PBS, continue to drop-coat 8 µL of 10 µg / mL furazolidone antibody solution on the surface of the electrode, and store it in a refrigerator at 4 °C to dry;
[0065] (3) Wash the electrode obtained in step (2) with PBS, continue to drip-coat 8 µL of bovine serum albumin solution with a concentration of 100 µg / mL on the surface of the electrode, and store it in a refrigerator at 4 °C to dry;
[0066] (4) Wash the electrode obtained in step (3) with PBS, continue to drip-coat 6 µL of alkaline phosphatase solution with a concentration of 20 µg / mL on the surface of the electrode, and store it in a refrigerator at ...
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