SYNTHESIS OF NANOPARTICLE TiO2 – CHITOSAN AND TEMPLATE STARCH BY SOL-GEL METHOD ON COTTON FABRIC FOR UV BLOCKING IN TEXTILE APPLICATION

• Main Author: Komalasari, Maya
• Format: Theses
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/41042
• Institution: Institut Teknologi Bandung

Synthesis of TiO2 nanoparticles using a water-based alkaline pH present been successfully synthesized using sol-gel method and it was immobilized on Cotton materials using citric acid as a crosslinking agent with pad-dry-cure method. Synthesis process is done by using multiple parameters such as the concentration of precursor TiCl4 0.3 M, 0.5 M and 1.0 M, using templates starch 1%, the variation of calcination temperature (400?C, 500?C, 600?C) with a time of 2 hours. The nanoparticles then were applied to Cotton material using the pad-drycure method at temperatures of 120 ? C with a time of 3 minutes. Characterization of Scanning Electron Microscope (SEM) was conducted find out the morphology of the synthesized powders and morphology of TiO2 immobilization on Cotton fabric. Structural characterization was performed by X-Ray Diffraction (XRD), UV-Vis spectrophotometry characterization was carried out to check the band gap. Characterization of Brunauer Emmett Teller (BET) was done.to see the surface area, pores diameter. and the average pores volume, for application to textile materials characterization Fourier Transform Infra Red (FTIR). Based on the result of Scanning Electron Microscope (SEM) on particle morphology. It could be seen that, the nano particles had size less than 100 nm, alkaline pH was likely to produce smaller and agglomerated particles. After starch template was given, the distribution of particles was more uniform with particle size range from 170 nm to 200 nm. The characterization of X-Ray Diffraction (XRD) had a structure with three main peaks (100), (101) and (102,) anatase and rutile crystalline phases were formed crystalline phases anatase and rutile, with crystallite size 5-20 nm. UV-Vis spectrophotometry to provided an optical band gap value of 3.1 eV-3.5 eV and characterization of Brunauer Emmett Teller (BET) without starch templates resulted 1 % of the specific surface 40.65 m2/g, a total pore volume of 0.278 cm3/g with the addition of starch into smaller templates starch specific surface 35.44 m2/g with a total pore volume of 0.196 cm3/g, an average pores diameter of 20-30 nm. The best results of powder TiO2 nanoparticles was at a concentration of 0.3 M by the addition of starch template. Particles application characterization could be seen from morphology resulted by SEM, the particles had been successfully entered and immobilized into Cotton material with the addition of chitosan and citric acid as a crosslinking so it could be functioned as a UV blocking. Characterization results were confirmed by Fourier Transform Infra Red (FTIR), the 3495 cm-1 peak of the group O-H and NH, and there is a carboxylic acid at hidrogen bonded O - H at 2546 cm-1 peak, and there was Ti-O-Ti at peak 511 cm-1.