Possible Monitoring and Removal of As(III) by an Integrated System of Electrochemical Sensor and Nanocomposite Materials

Figure 3

SEM images of (a) bare MNPs, (b) 5% PAni/MNPs, (c) 10% PAni/MNPs, and (d) 15% PAni/MNP nanocomposites.

(a)

(b)

(c)

(d)