Carboxylic

acids

Al2S3/MoS2

nanocomposite

103 k in

sec1

COD Values in mg/L

Photodegradation Efficiency %

Before

degradation

After

degradation

Cl3CCOOH

1.0 × 10−3

0.005 g

0.226

992

16

98.38

0.01 g

0.794

992

16

96.77

0.02 g

2.283

992

32

95.16

0.03 g

0.491

992

48

96.77

ClCH2COOH 1.0 × 10−3

0.005 g

0.218

704

16

95.45

0.01 g

0.525

704

16

97.72

0.02 g

1.443

704

24

93.18

0.03 g

0.230

704

32

97.72

CH3COOH

1.0 × 10−3

0.005 g

0.161

544

32

94.11

0.01 g

0.322

544

16

91.17

0.02 g

0.629

544

16

94.11

0.03 g

0.230

544

32

97.05