Preparation method and application of photoelectrochemical biosensor for detecting beta-lactoglobulin
A biosensor, lactoglobulin technology, applied in the field of functional nanomaterials, can solve the problems of weak surface adsorption capacity, small specific surface area, poor photoelectric active electron hole separation ability, etc., and achieves good reproducibility, high sensitivity, and detection. quick effect
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Embodiment 1
[0030] Embodiment 1 prepares CdWO 4 ,Proceed as follows:
[0031] Take 1.0 mmol Cd(NO 3 ) 2 4H 2 O and 1.0 mmol Na 2 WO 4 2H 2 O was dissolved in 12.5 mL of deionized water and marked as A and B respectively; solution B was added dropwise to solution A under stirring, and after continuous stirring for 30 min, the mixture was transferred to a 50 mL polytetrafluoroethylene-lined stainless steel high-pressure The reaction was carried out at 180 °C for 24 h in an autoclave; after natural cooling to room temperature, the product was collected by centrifugation, washed with ethanol and deionized water three times each, and then vacuum-dried at 50 °C.
Embodiment 2
[0032] Embodiment 2 prepares CdWO 4 ,Proceed as follows:
[0033] Take 1.25 mmol Cd(NO 3 ) 24H 2 O and 1.25 mmol Na 2 WO 4 2H 2 O was dissolved in 12.5 mL of deionized water and marked as A and B respectively; solution B was added dropwise to solution A under stirring, and after continuous stirring for 30 min, the mixture was transferred to a 50 mL polytetrafluoroethylene-lined stainless steel high-pressure The reaction was carried out at 180 °C for 24 h in an autoclave; after natural cooling to room temperature, the product was collected by centrifugation, washed with ethanol and deionized water three times each, and then vacuum-dried at 50 °C.
Embodiment 3
[0034] Example 3 Preparation of CdWO 4 ,Proceed as follows:
[0035] Take 1.5 mmol Cd(NO 3 ) 2 4H 2 O and 1.5 mmol Na 2 WO 4 2H 2 O was dissolved in 12.5 mL of deionized water and marked as A and B respectively; solution B was added dropwise to solution A under stirring, and after continuous stirring for 30 min, the mixture was transferred to a 50 mL polytetrafluoroethylene-lined stainless steel high-pressure The reaction was carried out at 180 °C for 24 h in an autoclave; after natural cooling to room temperature, the product was collected by centrifugation, washed with ethanol and deionized water three times each, and then vacuum-dried at 50 °C.
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