Self-cleaning cotton by porphyrin-sensitized visible-light photocatalysis

Shabana Afzal, Walid Daoud, Steven James Langford

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51 Citations (Scopus)


Self-assembled monolayers of meso-tetra(4-carboxyphenyl) porphyrin (TCPP) were formed on anatase coated-cotton fabric to confer visible-light sensitized self-cleaning properties. A complete degradation of methylene blue in 110 min and removal of coffee and red wine stains in 16 h indicate that TiO2/ TCPP-coated cotton fabrics exhibit superior visible-light self-cleaning performance as compared to bare TiO2-coated cotton. The fabrics were characterized by UV-Vis, FESEM, XRD and fluorescence spectroscopy. Visible-light induced self-cleaning cotton offers a great potential for indoor self-cleaning applications.
Original languageEnglish
Pages (from-to)4083 - 4088
Number of pages6
JournalJournal of Materials Chemistry
Issue number9
Publication statusPublished - 2012

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