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

摘要: 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。

Abstract: 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.