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Green in-situ synthesis of TiO$_2$ in combination with Curcuma longa for the tailoring of multifunctional cotton fabric
ID Tomšič, Brigita (Author), ID Savnik, Nika (Author), ID Shapkova, Elena (Author), ID Cimperman, Laura (Author), ID Šoba, Lara (Author), ID Gorjanc, Marija (Author), ID Simončič, Barbara (Author)

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Abstract
The introduction of green chemistry has become urgent in the development of innovative, high-performance functional textiles to reduce the environmental footprint of their production. This study aims to develop a new eco-friendly process for the hydrothermal in-situ synthesis of TiO$_2$ in cotton fabric and dyeing with curcumin natural dye to produce a photocatalytically active coloured textile platform with simultaneous UV protection properties. Two approaches were developed: classical, which included dyeing of the cotton samples with Curcuma longa (turmeric) extracts at different concentrations (5 g/L, 10 g/L and 15 g/L) and subsequent hydrothermal in-situ synthesis of TiO$_2$ in the presence of the dyed cotton samples, and greener, in which simultaneous dyeing with turmeric extracts and hydrothermal in-situ synthesis of TiO$_2$ were carried out. Since increasing the turmeric concentration hindered the photocatalytic performance of TiO$_2$ in the chemically modified cotton samples, 5 g/L was selected as the most suitable turmeric concentration. A comparison of the chemical modification processes shows that the simultaneous dyeing of cotton with turmeric extract and hydrothermal in-situ synthesis of TiO$_2$ was beneficial and resulted in a UV protection factor 50+, which corresponds to excellent protection category. The photocatalytic activity of TiO$_2$ was maintained in the presence of turmeric, indicating the compatibility of both players in the chemically modified cotton, but not the creation of a turmeric–TiO$_2$ heterojunction with visible-light-driven photocatalysis. The presence of TiO$_2$ inhibited the photodegradation of the curcumin dye, further confirming the compatibility of the two players.

Language:English
Keywords:cotton, TiO$_2$, turmeric extract, photocatalytic activity, UV protection
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:NTF - Faculty of Natural Sciences and Engineering
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:Str. 321-338
Numbering:Vol. 66, no. 4
PID:20.500.12556/RUL-164736 This link opens in a new window
UDC:677
ISSN on article:0351-3386
DOI:10.14502/tekstilec.66.2023075 This link opens in a new window
COBISS.SI-ID:177712899 This link opens in a new window
Publication date in RUL:08.11.2024
Views:735
Downloads:224
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Record is a part of a journal

Title:Tekstilec : glasilo slovenskih tekstilcev
Shortened title:Tekstilec
Publisher:Zveza inženirjev in tehnikov tekstilcev, Splošno združenje tekstilne industrije, Zveza inženirjev in tehnikov tekstilcev, Splošno združenje tekstilne industrije, Društvo inženirjev in tehnikov tekstilcev, Univerza v Ljubljani, Naravoslovnotehniška fakulteta, Oddelek za tekstilstvo, Založba Univerze v Ljubljani
ISSN:0351-3386
COBISS.SI-ID:763396 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Title:Zelena in situ sinteza TiO$_2$ v prisotnosti ekstrakta kurkume za izdelavo večfunkcionalne bombažne tkanine
Abstract:
Pri razvoju inovativnih, visokozmogljivih funkcionalnih tekstilij je za zmanjšanje okoljskega odtisa pri njihovi proizvodnji postala vpeljava zelene kemije nujna. Zato je bil namen raziskave razviti nov okolju prijazen postopek hidrotermalne in situ sinteze TiO$_2$ na bombažni tkanini in barvanja z naravnim barvilom kurkume za proizvodnjo fotokatalitsko aktivne obarvane tekstilije s hkratnimi UV-zaščitnimi lastnostmi. Razvita sta bila dva pristopa, in sicer klasični, ki je vključeval barvanje vzorcev bombaža z izvlečki kurkume različnih koncentracij (5 g/L, 10 g/L in 15 g/L) in naknadno hidrotermalno in situ sintezo TiO$_2$ v prisotnosti pobarvanih vzorcev bombaža, in bolj zeleni, kjer sta sočasno potekala barvanje z izvlečki kurkume in hidrotermalna in situ sinteza TiO$_2$. Ker je povečanje koncentracije kurkume oviralo fotokatalitsko delovanje TiO$_2$ v kemično modificiranih vzorcih, je bila kot najprimernejša koncentracija kurkume izbrana 5 g/L. Iz primerjave postopkov kemične modifikacije je razvidno, da sta bila sočasno barvanje bombaža z izvlečkom kurkume in hidrotermalna in situ sinteza TiO$_2$ zelo učinkovita, s čimer je tkanina dobila UV-zaščitni faktor 50+, kar je kategorizirano kot odlična zaščita. Fotokatalitska aktivnost TiO$_2$ se je v prisotnosti kurkume ohranila, kar je kaže na združljivost obeh akterjev v kemično modificiranem bombažu, ni pa se tvoril kompozit kurkuma-TiO$_2$ s povečano fotokatalitsko aktivnostjo pri osvetljevanju z vidno svetlobo. Prisotnost TiO$_2$ je zavrla fotorazgradnjo kurkume, kar dodatno potrjuje združljivost obeh komponent.

Keywords:bombaž, TiO$_2$, ekstrakt kurkume, fotokatalitska aktivnost, UV-zaščita

Projects

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0213
Name:Tekstilije in ekologija

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:I0-0022
Name:Mreža raziskovalnih infrastrukturnih centrov Univerze v Ljubljani (MRIC UL)

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