聚苯胺/碳化丝布复合材料的制备及其用作pH传感的性能探究

Preparation of Polyaniline/Carbonized Silk Fabrics Composite and Its Performance as pH Sensor

采用电化学聚合法,以苯胺为前驱体,碳化丝布为基底,成功制备了聚苯胺/碳化丝布(PANI/CSF)复合材料。以此复合材料为工作电极,探究了其作为pH传感器的性能。结果表明,基于PANI/CSF复合材料的pH传感器具有优异的传感性能:灵敏度高(50.5 mV/pH)、线性范围宽(pH: 3~11)、响应迅速(27.52 s/pH)以及良好的稳定性。此外,该传感器在弯曲的状态下依然能够保持优异的传感性能,这证明了其在柔性和可穿戴pH传感器领域的潜在应用。

The polyaniline/carbonized silk fabrics(PANI/CSF)composites were successfully fabricated by using carbonized silk cloth as the substrate and aniline as the precursor via chemical polymeriza-tion method.Afterward,we used this composite as work electrode to investigate its performance as a pH sensor.As a result,the as-prepared pH sensor shows excellent properties:high sensitivity(50.5 mV/pH),good linear range(pH:3-11),fast response(27.52 s/pH)and good stability.Fur-thermore,the sensor can reserve the excellent performance even under bending state,which in-dicates its potential application in flexible and wearable pH sensor.