Effect of the Mg/Al Ratio on Activated Sol-Gel Hydrotalcites for Photocatalytic Degradation of 2,4,6-Trichlorophenol

Figure 1

X-ray diffraction of Mg/Al mixed oxides after and before 2,4,6-trichlorophenol. HT: hydrotalcite; P: periclase; polyoxycations of aluminum in solid state.

(a) Uncalcined hydrotalcites

(b) Hydrotalcite 500°C, before photoreaction

(c) Restructured hydrotalcite, after photoreaction