Table 2: Electrochemical data for cyclic voltammetry of dyes (5 × 10−5 M) at modified (ZSM-5) GCE in the presence of  0.1 M H2SO4.

Dye /s−1 /V /V /V /

100.2150.1730.0420.9316.02
200.2180.1720.0461.0512.71
400.2200.1700.0501.0411.50
Thionine600.2220.1700.0521.0311.00
1000.2250.1680.0570.9411.01
1500.2250.1680.0570.9510.32
2000.2290.1650.0640.9310.02
3000.2350.1600.0750.8510.20

100.0700.0300.0401.0045.03
200.0750.0290.0461.1135.40
400.0750.0290.0461.2128.71
Azure C600.0780.0280.0501.1428.49
1000.0800.0280.0521.0528.41
1500.0820.0260.0561.0227.70
2000.0840.0250.0590.9827.89
3000.0850.0240.0610.9327.30

100.0580.0140.0440.9123.00
200.0600.0150.0451.0017.72
400.0620.0160.0461.0316.01
Azure A600.0650.0160.0490.9715.49
1000.0660.0120.0540.9215.80
1500.0680.0100.0580.9015.71
2000.0700.0080.0620.8715.79
3000.0750.0090.0660.8215.62

100.0600.0300.0300.5752.50
200.0630.0300.0330.7440.69
400.0680.0300.0380.8832.50
Azure B600.0700.0310.0390.8929.51
1000.0720.0320.0400.8629.21
1500.0760.0300.0460.8628.40
2000.0780.0290.0490.8527.29
3000.0820.0260.0560.8127.30

100.0940.0600.0340.7255.01
200.0950.0600.0350.9142.50
400.0960.0600.0361.0033.72
Methylene blue600.0980.0580.0400.9631.59
1000.1000.0550.0450.9530.80
1500.1020.0540.0480.9129.59
2000.1050.0500.0550.9029.60
3000.1080.0480.0600.8728.22