Figure 5

The optimized molecular adsorption model. (a) Molecular model for the optimized calcite (1 − 1 2) surface adsorbed tannin; (b) molecular model for the optimized calcite (1 − 1 2) surface adsorbed sodium humate; (c) molecular model for the optimized fluorite (1 − 1 2) surface adsorbed tannin; (d) molecular model for the optimized fluorite (1 − 1 2) surface adsorbed sodium humate; (e) molecular model for the optimized calcite (1 − 1 2) surface molecular model for adsorption of tannin and sodium humate.