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The Scientific World Journal
/
2013
/
Article
/
Tab 3
/
Research Article
Design and Synthesis of Metal Complexes of (2
E
)-2-[(2
E
)-3-Phenylprop-2-en-1-ylidene]hydrazinecarbothioamide and Their Photocatalytic Degradation of Methylene Blue
Table 3
Decolorization of dyes using Cu(II), Ni(II), and Co(II) complexes.
Dye/metal complex (5 mg)
% of removal at pH’s without UV
% of removal at pH’s with UV
3.0
8.2
12.0
3.0
8.2
12.0
Methylene blue
No change
13.82
24.0
5.69
29.93
47.73
Co(
L
)
2
Cl
2
14.78
14.78
44.66
9.24
9.24
83.07
Ni(
L
)
2
7.9
29.93
35.72
38.8
22.18
80.44
Cu(
L
)
2
Cl
2
·2H
2
O
33.92
8.83
33.44
43.33
3.3
88.80