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Table 1 Optimizing the influencing parameters in treatment process of sewage water sample

From: Rapid ecosynthesis of TiO2@CuO@Chromite nanocatalyst for environmentally friendly applications: solventless cyanation of aldehydes and high efficient treatment of sewage waters

Entry

Sewage sample (mL)

TiO2@CuO@Chromite NCs (mg)

NaBH4 (M)

Temperature (°C)

Appearance

Time (h)

1

100

3

5 × 10−3

RT

Cloudy

24

2

100

3

8 × 10−3

50

Cloudy

12

3

100

5

3 × 10−3

RT

Cloudy

5

4

100

5

6 × 10−3

RT

Clear

1

5

100

5

8 × 10−3

50

Clear

1

6

100

7

5 × 10−3

RT

Clear

1

7

100

7

8 × 10−3

50

Clear

1

8

100

10

5 × 10−3

RT

Clear

1

9

100

10

8 × 10−3

50

Clear

1

10

100

15

0

50

Cloudy

15

11

100

No catalyst

8 × 10−3

50

No change

48