Table 1 Low- and high-level values for independent variables.

From: Cube-shaped Cobalt-doped zinc oxide nanoparticles with increased visible-light-driven photocatalytic activity achieved by green co-precipitation synthesis

Factor

Name

Units

Minimum

Maximum

Mean

Std. dev. ± 

A

Catalyst dosage

mg

20

100

60.00

18.19

B

Antibiotic dosage

mg/L

10

50

30.00

9.10

C

Shaking time

min

50

250

150.00

45.49

D

pH

 

3

11

7.00

1.82