Thiol-Functionalized Mesoporous Silica for Effective Trap of Mercury in Rats

Figure 4

Evaluation of mercury adsorption ability of the materials. (a) Mercury adsorption isotherms (obtained at 20°C and pH = 1.2) and (b) Langmuir linear plots of all materials. (c) The influence of pH on the mercury adsorption of SBA15-SH-10. (d) Competitive adsorption experiments in vitro were tested in aqueous system in the presence of SBA15-SH-10 and a mixture of Hg (II), Ca (II), and Mg (II). The results are indicated as the concentration of the metal ions before and after the adsorption; (e) shows the water dispersibility of the materials.

(a)

(b)

(c)

(d)

(e)