Reactive Blue-25 dye/TiO 2 coated cotton fabrics with self-cleaning and UV blocking properties

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Cotton fabrics have been used in a variety of applications due to its attractive properties of softness, comfort, warmth, biodegradability and breathability. Coating cotton fabrics with photocatalytic materials can extend their use as self-cleaning and other practical applications. In this study, coating of cotton fabrics with dye sensitized/TiO 2 for self-cleaning and UV blocking properties has been reported. Phthalocyanine based reactive dye, Reactive Blue-25 (RB-25), has been used as a visible light scavenger for TiO 2 . RB-25/TiO 2 hybrid sol was prepared by sol–gel method and coated on the cotton fabrics via dip-pad-dry-cure method. The coated cotton fabric was characterized by FTIR-ATR, UV–Visible absorption, XRD, SEM and reflectance measurements. The surface studies confirmed the stable attachment of RB-25/TiO 2 on the cotton fabric while photocatalytic and UV absorption studies shown that the RB-25/TiO 2 coated cotton fabric exhibit substantial visible light driven self-cleaning and UV blocking properties. Rhodamine B (RhB) dye was used as to examine the photocatalytic efficiency of the coated cotton fabric. 91% RhB was degraded in 180 min when exposed to visible light in the presence of RB-25/TiO 2 coated cotton fabric.

Original languageEnglish
Pages (from-to)2821-2832
Number of pages12
JournalCellulose
Volume26
Issue number4
DOIs
Publication statusPublished - 15 Mar 2019

Keywords

  • Cotton
  • Reactive Blue 25
  • Self-cleaning
  • TiO coating
  • UV blocking

ASJC Scopus subject areas

  • Polymers and Plastics

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