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Titanium dioxide layer deposited at low temperature upon polyester fabrics

I. ZGURA1,* , S. FRUNZA1, L. FRUNZA1, M. ENCULESCU1, C. FLORICA1, C. P. GANEA1, C. C. NEGRILA1, L. DIAMANDESCU1

Affiliation

  1. National Institute of Materials Physics, PO Box Mg 07, 077125 Magurele, Romania

Abstract

TiO2 deposition by sputtering or sol-gel techniques was applied onto less thermal stable polyester textiles and onto a related poly(lactic acid) material. The temperature of deposition and of the further treatment was low enough as allowed by the support nature. Structural and spectroscopic characterization of the raw and coated samples has been performed. TiO2 coated particles are amorphous as indicated by X-ray diffraction and scanning electron microscopy. Sputtered layers consist in aggregates randomly distributed on the substrate while the sol gel layers show a uniform coverage of nanoparticles having a mosaic-like structure. The morphology of the sputtered layers depends on the deposition pressure as well. The loading degree estimated on the basis of the thermogravimetric data is rather low (ca. 2%), but the fabric properties are much influenced by the deposition. Photocatalytic activity also present on the coated surfaces was evaluated in the methylene blue degradation. TiO2 layer is quite adherent as checked by an ultra-sonication method..

Keywords

Polyester fabrics, Low temperature deposition, TiO2 deposition, Photocatalytic activity.

Submitted at: Oct. 20, 2014
Accepted at: June 24, 2015

Citation

I. ZGURA, S. FRUNZA, L. FRUNZA, M. ENCULESCU, C. FLORICA, C. P. GANEA, C. C. NEGRILA, L. DIAMANDESCU, Titanium dioxide layer deposited at low temperature upon polyester fabrics, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 1055-1063 (2015)