Optimizing the photocatalytic properties and the synergistic effects of graphene and nano titanium dioxide immobilized on cotton fabric

a b s t r a c tThe purpose of this work is to obtain photocatalytic fabrics based on reduced graphene oxide (RGO) and TiO 2 coatings on polyester fabrics. The influence of the applied number of RGO coatings on properties such as light absorption, conductivity, electroactivity and photocatalytic properties of the fabrics was established. An improvement of these properties with the number of RGO coatings applied was obtained. FESEM, EDX, XPS and FTIR-ATR showed the incorporation of the TiO 2 nanoparticles on the fabrics. FTIR-ATR showed the formation of a bidentate carboxylic ligand with titanium atoms. The photocatalytic properties of the fabrics were tested with Rhodamine B dye solutions. Photocatalytic efficiency increased with the number of RGO coatings, due to the increased light absorption, and better electrical properties. The charge transfer resistance (R ct ) and its time constant ( ) decreased, indicating a better electron transfer which helps to increase the lifetime of the pair electron/hole.

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“…The employment of graphene/TiO 2 nanocomposites applied on fabrics has also been recently reported and has shown its advantages [49,50].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

Molina

Fernandes

Fernández

et al. 2015

Materials Science and Engineering: B

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“…Carbon nano tubes (CNT) have several mechanical characteristics such as a high modulus and high tensile strength [64][65][66][67]. When the carbon nano tubes are used as reinforcement in composite, it is so hard to string them and this is a disadvantage of CNTs.…”

Section: Cntmentioning

confidence: 99%

Review for application of electrospinning and electrospun nanofibers technology in textile industry

2016

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“…Montazer and Seifollahzadeh used nano‐TiO 2 and enzyme treatment for the generation of superior self‐cleaning wool/polyester‐blended fabrics . Some studies have also focused on the combination of photocatalysts with carbonaceous nanomaterials for producing multifunctional textiles .…”

Section: Introductionmentioning

confidence: 99%

Simultaneous coloration and functional finishing of cotton fabric using Ag/ZnO nanocomposite

2017

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In this study, colored cotton fabric with special functions, including self‐cleaning, anti‐bacterial, and ultraviolet (UV) blocking were prepared by applying zinc oxide as a photocatalyst and using silver nanoparticles as both a novel class of colorant for coloration and an agent capable of modifying the zinc oxide nanoparticles. The homogenous distribution of Ag/ZnO nanocomposite on the fibre surface was confirmed by field emission scanning electron microscopy (FE‐SEM), Energy‐dispersive X‐ray spectroscopy (EDS) and X‐ray mapping. X‐ray diffraction patterns showed the presence of the nanocomposite on the treated cotton fabric. The results indicated that adding silver nanoparticles to zinc oxide led to better self‐cleaning properties, even the photocatalytic activity of ZnO had no negative effect on fabric colour. Moreover, this process imparted proper anti‐bacterial properties and UV‐blocking activity to cotton fabrics.

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Optimizing the photocatalytic properties and the synergistic effects of graphene and nano titanium dioxide immobilized on cotton fabric

Cited by 57 publications

References 43 publications

Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

Review for application of electrospinning and electrospun nanofibers technology in textile industry

Simultaneous coloration and functional finishing of cotton fabric using Ag/ZnO nanocomposite

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