Effect of Thermal Treatment on Thermal Properties, Surface Chemistry, Crystalline Structure and Methylene Blue Removal of Polyvinyl Alcohol/TiO2 Nanocomposite Films

Sirinan Ratchawong; Sirirat Wacharawichanant; Siriporn Tanodekaew

doi:10.4028/www.scientific.net/MSF.998.96

Paper Titles

Enhancement of Photocatalytic Performance of Anatase by Silver Deposition through Chemical Reduction Process at Room Temperature
p.71

Effect of Anatase/Rutile Phase Ratio on the Photodegradation of Methylene Blue under UV Irradiation
p.78

Influence of Preparation Methods of TiO₂ Nano-Particle on Photodegradation of Methylene Blue
p.84

Changing of Particle Size and Pore Structures of Calcium Oxide during Calcinations of Industrial Eggshell Waste
p.90

Effect of Thermal Treatment on Thermal Properties, Surface Chemistry, Crystalline Structure and Methylene Blue Removal of Polyvinyl Alcohol/TiO₂ Nanocomposite Films
p.96

Characterization of Low-Pressure Nitrogen Plasma Discharge and Pre-Oxidation on the Surface Characteristics of Activated Carbons
p.102

Effect of Silver Addition on the Adsorption Properties of Y Zeolite
p.108

Pyrolysis Kinetics of Polypropylene and High Density Polyethylene Wastes Using Kaolin Catalyst
p.114

In Situ ATR Infrared Study of Cobalt-Borate Water Oxidation Catalysts
p.123

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Effect of Thermal Treatment on Thermal Properties, Surface Chemistry, Crystalline Structure and Methylene Blue Removal of Polyvinyl Alcohol/TiO₂ Nanocomposite Films

Abstract:

In this research, titanium dioxide (TiO₂) nanoparticles were immobilized into polyvinyl alcohol (PVA) matrix without and with surfactants via solution casting film combined with thermal treatment method. The dispersion and distribution of TiO₂ nanoparticles presented by scanning electron microscopy (SEM) showed the uniform distribution of TiO₂ nanoparticles in PVA matrix with surfactant. Fourier-transform infrared spectroscopy (FTIR) showed increasing intensity peak at 560-800 cm^-1 corresponding to Ti-O stretching vibration indicating interaction between PVA and TiO₂ after thermal treatment. X-ray diffraction (XRD) result showed peak of PVA crystal structure due to the thermal treatment, and the addition of surfactant could decrease the average crystallite size of TiO₂ in PVA/TiO₂ nanocomposite films. Photocatalytic activity was determined from the film efficiency on removal of methylene blue (MB) under ultraviolet (UV). The results showed the greater MB removal efficiency of the PVA/TiO₂ nanocomposite films with surfactant and thermal treatment than those without surfactant and thermal treatment.