Abstract
An Al/Cu bifunctional mesoporous silica was successfully synthesized through an acidity-regulated method. AlCl3 instead of HCl was served as catalyst for the hydrolysis and condensation of siliceous source and forming the mesostructure. Cu and Al species were then feasibly incorporated into the matrix of mesoporous SiO2 under the mildly acidic conditions. The obtained Al/Cu-SiO2 bifunctional composite preserves structural ordering of the mesopores. Al is highly dispersed and Cu nanoparticles of ca. 54 nm are decorated on Al/Cu-SiO2. The Al/Cu-SiO2 material presents large adsorption capacity, remarkable catalytic behavior and good cycling performance in the degradation of organic methylene blue from aqueous solutions.
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