Mixed oxide-polyaniline composite-coated woven cotton fabrics for the visible light catalyzed degradation of hazardous o
- PDF / 7,118,475 Bytes
- 24 Pages / 547.087 x 737.008 pts Page_size
- 118 Downloads / 172 Views
(0123456789().,-volV) ( 01234567 89().,-volV)
ORIGINAL RESEARCH
Mixed oxide-polyaniline composite-coated woven cotton fabrics for the visible light catalyzed degradation of hazardous organic pollutants Fatima Mousli . Ahmed M. Khalil . Franc¸ois Maurel . Abdelaziz Kadri . Mohamed M. Chehimi
Received: 22 October 2019 / Accepted: 17 June 2020 Springer Nature B.V. 2020
Abstract Clean water and sea free of organic pollutants are among the 17 United Nation Sustainable Development Goals (SDGs). In this global concern, the design of efficient, stable and recyclable catalytic materials remains challenging. In this context, we designed a series of mixed oxide-modified cotton fabrics and their related composites and interrogated their propensity to catalyze the degradation of methyl orange (MO) (a model pollutant). More specifically, functional cotton fabrics (CF) coated with RuO2–TiO2 based-photocatalysts were obtained by dip-coating method at neutral pH. A layer of Polyaniline (PANI) was prepared by in situ oxidative polymerization of the aniline monomer on 4-diphenylamine diazonium salt (DPA) modified-RuO2–TiO2 nanoparticles (NPs) F. Mousli (&) A. Kadri Laboratoire de Physique et Chimie des Mate´riaux (LPCM), Faculte´ des Sciences, Universite´ Mouloud Mammeri, 15000 Tizi-Ouzou, Algeria e-mail: [email protected]
coated-CF. The modified CFs catalyzed photodegradation and mineralization of MO under visible light, which depended on polyaniline mass loading. The CF/ RuO2–TiO2/DPA@PANI obtained by in situ polymerization was the best catalyst due to DPA adhesive layer for polyaniline to RuO2–TiO2, and the strong attraction force between cellulose OH groups and anilinium during polymerization. The photodegradation rate constant was 0.101, 0.0532, 0.0775 and 0.0828 min-1 for RuO2–TiO2/DPA@PANI, RuO2– TiO2, RuO2–TiO2/PANI and RuO2–TiO2/DPA/PANI coated-CFs, respectively. The catalytic activity is favored by the photoactive species (OH,O 2 ) which are formed by the excitation of electrons under visible light but also by the electronic exchanges at the RuO2// TiO2, RuO2–TiO2//PANI and RuO2–TiO2/PANI//CF interfaces. CF/RuO2–TiO2/DPA/PANI photocatalyst was stable under simulated sunlight and reusable three times. A mechanism is proposed to account for the efficient CF catalytic properties.
F. Mousli F. Maurel Sorbonne Paris Cite´, Universite´ Paris Diderot, CNRS, ITODYS (UMR 7086), 75013 Paris, France A. M. Khalil Photochemistry Department, National Research Centre, 33 El-Buhouth Street, Dokki 12622, Giza, Egypt M. M. Chehimi (&) Universite´ Paris Est, CNRS, ICMPE (UMR 7182), 94320 Thiais, France e-mail: [email protected]
123
Cellulose
Graphic abstract
Keywords Cotton fabric RuO2–TiO2 Diazonium salt Polyaniline Photocatalysis
Introduction There is an ever growing demand for specialty textile with one specific or multiple functions. Indeed, much has been achieved recently in this domain, namely textiles with odour elimination property (Wang et al. 2019a, b; Zhu et al. 2019), textiles for tissue engine
Data Loading...
