Figure 4 | Scientific Reports

Figure 4

From: Optimization of biochar preparation from the stem of Eichhornia crassipes using response surface methodology on adsorption of Cd2+

Figure 4

Three-dimensional (3D) response surface plot and contour diagram of the interaction of heating time and heating temperature for removal rate: (a) three-dimensional (3D) response surface plot for removal rate; (b) three-dimensional (3D) response surface plot for adsorption capacity; (c) contour diagram for removal rate; (d) contour diagram for adsorption capacity.

Back to article page