Abstract
The dispersion of anatase TiO2 on diatomic material was a prospective route to avoid agglomerates of these particles. In this work, the TiO2/diatomite composites were prepared using a solvothermal process and a non-hydrolytic sol-gel method at low temperature on the raw (TDB) and the purified (TDS) diatomite. The synthesized samples were characterized utilizing various techniques. These given that TiO2 anatase was impregnated well on the surface of diatomite, and the immobilization of these particles tends to increase the thermal stability of the composite as compared to the raw diatomite. In addition, the photodegradation of crystal violet (CV) in solution was in the direction of TDB > TDS > TiO2. The 99.996% of CV can be degraded in 210 min of irradiation time at pH 10. These results revealed that the immobilization of titanium on diatomite improves the photocatalytic degradation by reducing the crystallite size of anatase TiO2.
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