Facile synthesis of high-thermostably ordered mesoporous TiO2/SiO2 nanocomposites: An effective bifunctional candidate for removing arsenic contaminations.High-thermostably ordered mesoporous TiO2/SiO2 nanocomposites are successfully prepared through evaporation-induced self-assembly method combined with ethylenediamine bounding strategy and subsequent high-temperature calcinations (700°C).  The prepared samples are characterized in detail by thermogravimetric-differential scanning calorimetry, X-ray diffraction, Raman, transmission electron microscopy and N2 adsorption.  Significantly, the experimental results show that the high-thermostably ordered mesoporous TiO2/SiO2 nanocomposites play bifunctional roles on effectively adsorbing As (III) and completely oxidizing higher toxic As (III) to lower toxic As (V) under various pH values by one time. 
THERM