Lasting superhydrophobicity and antibacterial activity of Cu nanoparticles immobilized on the surface of dopamine modified cotton fabrics

A simple two-step impregnation method was used to prepare copper nanoparticles coated cotton fabric. In which, dopamine firstly self-polymerized to polydopamine membrane on the cotton fabric surface, then copper nanoparticles were obtained and bound onto the cotton fabric using polydopamine as a red...

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Bibliographic Details
Published in:Surface & coatings technology 2017-01, Vol.309, p.149-154
Main Authors: Yang, Jiaying, Xu, Hong, Zhang, Linping, Zhong, Yi, Sui, Xiaofeng, Mao, Zhiping
Format: Article
Language:English
Subjects:
Antibacterial activity
Contact angle
Copper
Copper nanoparticles
Cotton
Cotton fabrics
Dopamine
Emission analysis
Emissions control
Fabrics
Field emission microscopy
Hydrophobic surfaces
Inductively coupled plasma
Nanoparticles
Polydopamine
Scanning electron microscopy
Spectrum analysis
Sticky superhydrophobicity
Studies
Ultrasonic testing
X ray photoelectron spectroscopy
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Summary:A simple two-step impregnation method was used to prepare copper nanoparticles coated cotton fabric. In which, dopamine firstly self-polymerized to polydopamine membrane on the cotton fabric surface, then copper nanoparticles were obtained and bound onto the cotton fabric using polydopamine as a reductant and binder. Field emission scanning electron microscopy (FE-SEM), X-ray photoelectron spectroscopy (XPS) and Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) were used to observe the surface morphology and analyze the elemental composition as well as their surface chemical states of all samples. The results confirmed the formation of polydopamine film and copper nanoparticles. The results of contact angle measurements and antibacterial tests showed that the modified cotton fabrics had durable sticky superhydrophobicity and considerable antibacterial activity. [Display omitted] •The uniform deposition of copper nanoparticles are formed by the in-situ reduction of dopamine.•The fabric has superhydrophobicity after 30 washing cycles and after dyeing.•The fabric has high antibacterial activity against E. coli after 50 washing cycles and after dyeing.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2016.11.058