Figure 6

(a) XRD, (b) extracted yield and (c,d) content, using (c) XRD and (d) Cu-TET methods, of montmorillonite clay particles ($$showing different grinding time).

(a) XRD, (b) extracted yield and (c,d) content, using (c) XRD and (d) Cu-TET methods, of montmorillonite clay particles ($$showing different grinding time).