Polyfunctional cotton fabrics with catalytic activity and antibacterial capacity

Nabil Bouazizi (1, 2) , A. El Achari (2) , C. Campagne (2) , Julien Vieillard (1) , A. Azzouz (3)

1 COBRA - Chimie Organique et Bioorganique : Réactivité et Analyse
2 GEMTEX - Génie et Matériaux Textiles
3 UQAM - Université du Québec à Montréal = University of Québec in Montréal

A novel, eco-friendly and cost-effective method involving cotton fabric (CF) coating with copper oxide and grafting of 3-chloropropyltriethoxisilane and diethanolamine resulted in a multifunctional material (CF@CuO-Si-N(OH)2). The latter exhibited catalytic activity in 4-nitrophenol (4-NP) reduction, Methylene Blue degradation and antibacterial activity. Scanning electron microscopy, energy dispersive X-ray-fluorescence, Fourier transform infrared and UV–visible spectroscopies, contact angle and thermogravimetric analysis revealed the key-role of amine grafting in changes in wettability, stability, morphological and thermal properties. 4-NP catalytic reduction was found to obey 1st-order kinetics, affording 98% conversion even after 7 successive reuses. CF@CuO-Si-N(OH)2 also exhibited appreciable antibacterial capacity against Staphylococcus epidermidis (S.epidermidis) and Escherichia coli (E. coli). These results open promising prospects for using textile fiber-based nanocomposites in diverse technological applications.

Mots clés: Copper oxide; Cotton fabric; Antibacterial capacity; Dye degradation; Diethanolamine; 4-Nitrophenol reduction

Domaines: Chimie

Nabil Bouazizi, A. El Achari, C. Campagne, Julien Vieillard, A. Azzouz. Polyfunctional cotton fabrics with catalytic activity and antibacterial capacity. Chemical Engineering Journal, 2018, 351, pp.328-339. ⟨10.1016/j.cej.2018.06.050⟩. ⟨hal-02024479⟩