Synthesis of a montmorillonite-supported titania nanocomposite with grafted cellulose as a template and its application in photocatalytic degradation

We report a study on the synthesis of anatase titania (TiO 2 ) particles with the sol–gel method at room temperature. We immobilized the particles on a grafted-cellulose intercalated montmorillonite (MMT). This nanocomposite, cellulose- g -poly(4-vinyl pyridine)/MMT/TiO 2 , could be applied in the photocatalytic degradation of organic pollutants efficiently because of the addition of a sorbent, the grafted cellulose. The synthesized nanocomposite was characterized with Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Methyl orange was used as a model molecule to study photocatalytic degradation. The nanocomposite exhibited a better photocatalytic activity than in the absence of the grafted cellulose. The kinetics of the photocatalytic degradation could be described by pseudo-first-order rate law. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132 , 42627.