مهندسی نساجی گیلان:. گیل تکس

مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک
مهندسی نساجی گیلان:. گیل تکس

مهندسی نساجی گیلان:. گیل تکس

سایت تخصصی نساجی و پوشاک

Wool Textile Fibres Coated by Titanium Dioxide Film: Synthesis,

Wool Textile Fibres Coated by Titanium Dioxide Film: Synthesis, Characterization and Prolonged Self Cleaning Properties
Abdollah Fallah Shojaee, Ali Shams Nateri,and Hadi Fallah Moafi
Abstract
 The photocatalytic activity of titanium dioxide -coated wool fibers was investigated through the self-cleaning of methylene blue (MB). It was shown that titanium dioxide species could be produced at temperatures of 100 C by using a sol gel method with
acceptable photo-activity on polymeric materials. The original and treated samples have been characterized by several techniques such as scanning electron microscope, energy dispersive spectroscopic, fourier transform infrared spectroscopy, diffuse reflectance
spectroscopy and x-ray diffraction. The titanium dioxide microparticles, have been found to form a homogeneous thin film on the fibre surface, which shows efficient photocatalytic properties when exposed to ultraviolet light. These films show high photodecomposition
efficiency and the supporting material is stable under prolonged illumination. The photocatalytic activity, tested by measuring the degradation of adsorbed methylene blue
(MB) is maintained upon several numbers of washing. The titanium dioxide covered wool fibres show high efficiency in MB photodegradation, so suggesting high photocatalytic self cleaning properties under uv-vis light. The fibre structure is not altered upon light exposure. This preparation technique can be also applied to new fabrics to create self-cleaning and uv
irradiation protection properties in them.
 Keywords: Wool, Titanium dioxide, Sol gel, Photocatalysis, Self cleaning


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مدیر سایت دوشنبه 2 اردیبهشت‌ماه سال 1392 ساعت 11:44 ق.ظ
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