Effect of CMC and HPC mixture on the photocatalytic activity of Nd-TiO2/SiO2 film under visible light irradiation

Authors : Parviz ABEROOMAND AZAR, Shahram MORADI DEHAGHI, Susan SAMADI

Pages : 37-44

Doi:10.3906/sag-1205-135

View : 9 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Neodymium-titania/silica films were prepared by the sol-gel method with the addition of various amounts of hydroxy propyl cellulose insert ignore into journalissuearticles values(HPC); and 5.09 \times 10-5 g g-1solution of carboxy methyl cellulose insert ignore into journalissuearticles values(CMC); in saturated conditions. The porous Nd-TiO2/SiO2 was obtained after heat treatment for 2 h at 500 °C, with the surface area up to 276 m2 g-1, which was measured using the Brunauer, Emmett, and Teller insert ignore into journalissuearticles values(BET); method. Scanning electron microscopy insert ignore into journalissuearticles values(SEM); showed that the particle size of Nd-TiO2/SiO2 decreased and the microstructure of the film became loose in suitable conditions with the addition of CMC to HPC. Subsequently, the photocatalytic activity of Nd-TiO2/SiO2 film under visible light irradiation was achieved to an optimum when the concentrations became 3.825 \times 10-3 and 5.09 \times 10-5g g-1sol. for HPC and CMC, respectively.
Keywords : Self cleaning, sol gel, photocatalysis, nanocomposite