Abstract
Silicate-1 monolith was facilely synthesized in the precursor solution by combining sol–gel method and hydrothermal method. Characterization by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and transmission electron microscope revealed that silicate-1 particles were formed by transforming amorphous SiO2 into MFI-type structure and inlayed into the three-dimensional network of silica to form the monolith. Then, silicate-1 monolith was used as support to load TiO2 by dip-coating method. TiO2 nanoparticles were well dispersed in silicate-1 monolith. The photocatalytic properties of all samples were evaluated based on the degradation efficiency of Rhodamine B. And a scheme regarding photodegradation enhancement induced by dye enrichments has been proposed to illustrate the adsorption-photodegradation process.
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