Visible and UV functionality of TiO2 ternary nanocomposites on cotton

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)447-456
Journal / PublicationApplied Surface Science
Volume321
Online published12 Oct 2014
Publication statusPublished - 1 Dec 2014

Abstract

This research intends to increase the photocatalytic efficiency of cotton fabrics coated with TiO2-based nanocomposites under illumination particularly visible light. The fabrics were functionalized using a low-temperature sol-gel method of TiO2/Metal/SiO2 nanocomposite systems. Integrating silica and noble metals into TiO2 sol was put forth for boosting its functionality. Three noble metals (gold (Au), platinum (Pt) and silver (Ag)) with four different concentrations were employed. The photocatalytic activity of the functionalized fabrics was assessed through coffee stain-removal test and photodecomposition of methylene blue (MB) under UV and visible light. The impact of coating layers on fabrics' hydrophilicity was analyzed through measuring the water contact angle as well as the water absorption time. The fabrics were characterized using XRD, SEM and EDS. It was corroborated that the presence of silica enhanced the self-stain-removal capability of fabrics under UV. Moreover, the self-cleaning property of fabrics improved under both UV and visible light after integrating the metals into the colloids. In the same line, the self-cleaning activity threshold of fabrics was shifted to visible region.

Research Area(s)

  • Cotton, Nanocomposite, Photocatalytic activity, Sol-gel, Visible light

Citation Format(s)

Visible and UV functionality of TiO2 ternary nanocomposites on cotton. / Pakdel, Esfandiar; Daoud, Walid A.; Sun, Lu; Wang, Xungai.

In: Applied Surface Science, Vol. 321, 01.12.2014, p. 447-456.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review