Influence of plasma surface pretreatment and triarylmethane dye on the photocatalytic performance of TiO 2 -chitosan coating on textile

Grčić, Ivana; Erjavec, Boštjan; Vrsaljko, Domagoj; Guyon, Cédric; Tatoulian, Michaël

doi:10.1016/j.porgcoat.2017.01.014

Cited by 18 publications

(7 citation statements)

References 37 publications

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“…The presence of peaks at 1640 and at 1514 cm −1 is related to C=O stretching of COOH groups and C=C groups, respectively [4,43]. The broad absorption band in the range of 100-400 cm −1 is attributed to Ti-O and Ti-O-Ti vibrations [42,50]. In addition, for cotton fabrics there is a peak of around 1057 cm −1 corresponding to C-O stretching [4].…”

Section: Ftir Analysismentioning

confidence: 98%

The Photocatalytical Properties of RGO/TiO2 Coated Fabrics

et al. 2020

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The aim of this work was to immobilize reduced graphene oxide (RGO) and titanium dioxide (TiO2) on the surface of selected fibrous structures. Textile fabrics made of cotton (CO) and polyamide (PA) were used as a carrier. The following modification methods were applied: coating for modification of PA and dip-coating for modification of CO. In the dip-coating method, no auxiliaries were used, which is a huge advantage. The RGO/TiO2 coated fabrics were characterized using several techniques: ultraviolet–visible (UV–VIS) spectroscopy, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The obtained results showed the immobilization of RGO and TiO2 on the fabrics. Raw fabrics absorb much less radiation than coated ones, which is associated with strong absorption of radiation by applied modifiers (RGO and TiO2). Photocatalytic activity of functionalized textiles was determined using aqueous phenol solutions. Phenol removal efficiency obtained for RGO/TiO2 coated CO and RGO/TiO2 coated PA was 51% and 46%, respectively. The hydroxyl radicals play a major role in the phenol photocatalytic degradation. The phenol removal efficiency in the fifth cycle was higher (about 14% and 8% for RGO/TiO2 coated CO and RGO/TiO2 coated PA, respectively) compared to the first cycle.

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Section: Ftir Analysismentioning

confidence: 98%

The Photocatalytical Properties of RGO/TiO2 Coated Fabrics

et al. 2020

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“…Therefore, owing to ecological constraints, decreasing water resources and chemical waste problems the textile industry has been pushed to seek different alternatives, using more environmentalfriendly methods in finishing such as ultrasonic technique, microwave radiation 15 enzyme treatment, ultrasound, gamma radiation and plasma treatment. [15][16][17][18] Recently, plasma treatment of textile materials has become of significant interest as a pretreatment before the finishing process, [19][20][21][22][23] because it provides surface modification and markedly reduces the amount of chemicals required by the post-finishing-process and the concentration of the pollutants in the effluents, by changing the chemical properties of the applied materials. In particular, plasma treatment is an ecological, fast and dry process which could be an additive treatment or unique alternative to the conventional wet-chemical finishing applications utilised in the textile industry.…”

Section: Introductionmentioning

confidence: 99%

Investigation and feed‐forward neural network‐based estimation of dyeing properties of air plasma treated wool fabric dyed with natural dye obtained from Hibiscus sabdariffa

Başyiğit

Eyüpoğlu

et al. 2023

Coloration Technology

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In the colouring processes of textile products, more environmentally friendly chemicals and finishing methods should be used instead of conventional ones that harm the environment every day, so that alternative realistic ways to protect nature, both academically and industrially, could be possible. Due to some inconveniences caused by synthetic dyes that are widely used today, in this study, ultrasonic dyeing of wool fabric with Hibiscus sabdariffa was carried out after environmental‐friendly air vacuum plasma application which increased the absorption of the dyes into the textile material. According to the performance results, colour strengths of the wool fabrics were increased significantly. Surface morphology analysis was carried out and etching effects of air vacuum plasma treatment were clearly seen on the micrographs of the treated wool fabrics. An environmental‐friendly green process was achieved through this study and it was concluded that vacuum air plasma treatment could be an alternative green‐process as a pretreatment to increase the dye up‐take of natural dyeing treatment. Moreover, in this study, a feed‐forward neural network (FFNN) model was presented and used for predicting the dyeing properties (L, a, b and K/S) of samples. The experimental results showed that the presented model achieves the regression values greater than 0.9 for all dyeing properties. Consequently, it was considered that the proposed FFNN was successfully modelled and could be efficiently utilised for dyeing characteristics of wool fabrics dyed with natural dye extracted from Hibiscus sabdariffa.

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“…Other advanced oxidation approaches were utilized [16] to produce reactive free radicals having a higher oxidizing power in the TiO 2 photo-oxidation process for the destruction of contaminants, including sensitization of TiO 2 nanoparticles with both polymerpendant Ru(bpy) 3 complexes and dyes because of their more efficient visible light harvesting capability [17]. For example, triarylmethane dyes were used as a good sensitizer in the visible light region [18]. While the dye-sensitized TiO 2 nanoparticles are of low cost and have the flexibility of tunable photocatalytic activity in comparison with TiO 2 nanoparticles modified by using other techniques [19], most of the dyes used for the sensitization of TiO 2 are water soluble and these dye macromolecules anchored on TiO 2 surface are liable to be photodegraded and gradually lost in the photocatalysis process [20].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Activities of PET Filaments Deposited with N-Doped TiO2 Nanoparticles Sensitized with Disperse Blue Dyes

et al. 2020

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In this study, the enhanced photocatalytic activities of polyethylene terephthalate (PET) filaments deposited with N-doped Titanium dioxide (TiO2) nanoparticles sensitized with water insoluble disperse blue SE–2R dye were investigated. The PET filaments were loaded with two types of N-doped TiO2 nanoparticles, one with and the other without being sensitized with disperse blue SE–2R dye, in one-pot hydrothermal process respectively. The differences in photocatalytic activities between the N-doped TiO2 and the dye-sensitized N-doped TiO2 nanoparticles when exposed to both UV rays and visible lights were analyzed and compared by using their photodegradations of methylene blue (MB) dye. It was demonstrated that the disperse blue dye facilitated the electron–hole separation in N-doped TiO2 nanoparticles faster under UV irradiation than that under visible light irradiation. The enhanced photocatalytic activity of the PET filaments loaded with dye-sensitized N-doped TiO2 nanoparticles exposure to UV irradiation, in comparison with that under visible light irradiation, was attributed to both improved light absorption capacity and high separation efficiency of photo-generated electron–hole pairs. Furthermore, the conduction band and band gap of the PET filaments deposited with N-doped TiO2 nanoparticles sensitized with disperse blue SE–2R dye were influenced by the wavelength of light sources, while its valence band was not affected. The PET filaments deposited with dye-sensitized N-doped TiO2 nanoparticles have a potential application to degrade organic pollutants.

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Influence of plasma surface pretreatment and triarylmethane dye on the photocatalytic performance of TiO 2 -chitosan coating on textile

Cited by 18 publications

References 37 publications

The Photocatalytical Properties of RGO/TiO2 Coated Fabrics

The Photocatalytical Properties of RGO/TiO2 Coated Fabrics

Investigation and feed‐forward neural network‐based estimation of dyeing properties of air plasma treated wool fabric dyed with natural dye obtained from Hibiscus sabdariffa

Photocatalytic Activities of PET Filaments Deposited with N-Doped TiO2 Nanoparticles Sensitized with Disperse Blue Dyes

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