TY - JFULL AU - Dionisios Panagiotaras and Elias Stathatos and Dimitrios Papoulis PY - 2014/10/ TI - Silver Modified TiO2/Halloysite Thin Films for Decontamination of Target Pollutants T2 - International Journal of Chemical and Molecular Engineering SP - 913 EP - 920 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9999189 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 93, 2014 N2 -  Sol-gel method has been used to fabricate nanocomposite films on glass substrates composed halloysite clay mineral and nanocrystalline TiO2. The methodology for the synthesis involves a simple chemistry method utilized nonionic surfactant molecule as pore directing agent along with the acetic acid-based solgel route with the absence of water molecules. The thermal treatment of composite films at 450oC ensures elimination of organic material and lead to the formation of TiO2 nanoparticles onto the surface of the halloysite nanotubes. Microscopy techniques and porosimetry methods used in order to delineate the structural characteristics of the materials. The nanocomposite films produced have no cracks and active anatase crystal phase with small crystallite size were deposited on halloysite nanotubes. The photocatalytic properties for the new materials were examined for the decomposition of the Basic Blue 41 azo dye in solution. These, nanotechnology based composite films show high efficiency for dye’s discoloration in spite of different halloysite quantities and small amount of halloysite/TiO2 catalyst immobilized onto glass substrates. Moreover, we examined the modification of the halloysite/TiO2 films with silver particles in order to improve the photocatalytic properties of the films. Indeed, the presence of silver nanoparticles enhances the discoloration rate of the Basic Blue 41 compared to the efficiencies obtained for unmodified films. ER -