Research on nonenzymatic glucose biosensor based on Pd/ZnS nanocomposite
The detection of glucose is of great significance in many fields such as food,medicine,chemical industry,spinning and weaving,printing and dyeing,and energy.The article uses zinc acetate,sodium sulfide and palladium chloride as raw materials,polyethylene glycol as a surfactant to control the morphology of the material,and ascorbic acid as a reducing agent to synthesize Pd/ZnS nanocomposites under ultrasound conditions.The synthesized nanocomposites are characterized using methods such as field emission scanning electron microscope(FESEM)and energy dispersive X-ray spectroscopy(EDS).The nonenzymatic glucose sensor is constructed based on Pd/ZnS nanocomposite modified glassy carbon electrode(GCE).The cyclic voltammetry(CV)is studied the electrochemical behavior of glucose.The performance of the sensor,including detection potential and catalyst amount,is studied using the current time(i-t)curve method,and the optimal experimental conditions for detecting glucose are explored.Under the optimal experimental conditions,the linear range of glucose is 0.763 4-35.710 0 mmol/L,and the detection limit is 0.139 9 mmol/L(S/N=3).
electrochemical detectionnonenzymatic sensorPd/ZnS nanocompositethe detection of glucose
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