Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties

The main aim of the present study was to investigate the effect of microwave irradiation time on the photocatalytic and physiological comfort characteristics of zinc-oxide-nanorod-coated cotton fabrics. An ultra-fast technique was employed to grow the zinc oxide nanorods on cotton fabrics using a mi...

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Autores principales:	Muhammad Zaman Khan, Jiri Militky, Michal Petru, Blanka Tomková, Azam Ali, Asif Javed, Musaddaq Azeem, Dana Křemenáková
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	nanorods microwave self-cleaning photocatalytic physiological comfort Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/ab8172c8cf324aa48c249fe20ace5e60
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spelling	oai:doaj.org-article:ab8172c8cf324aa48c249fe20ace5e602021-11-25T17:15:52ZUltra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties10.3390/coatings111113092079-6412https://doaj.org/article/ab8172c8cf324aa48c249fe20ace5e602021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1309https://doaj.org/toc/2079-6412The main aim of the present study was to investigate the effect of microwave irradiation time on the photocatalytic and physiological comfort characteristics of zinc-oxide-nanorod-coated cotton fabrics. An ultra-fast technique was employed to grow the zinc oxide nanorods on cotton fabrics using a microwave-assisted hydrothermal method. The axial (length) and lateral (diameter) growth of the zinc oxide nanorods was observed to increase with microwave irradiation time. The ZnO nanorods uniformly and entirely covered the cotton fibers. The surface morphology, topography and chemical characteristics of the ZnO nanorods were investigated by scanning electron microscopy (SEM), EDS analysis, X-ray diffraction (XRD), atomic force microscopy (AFM) and inductively coupled plasma-optical emission spectrometry (<i>ICP</i>-<i>OES</i>). The degradation of orange II dye under UV light irradiation was observed to assess photocatalytic self-cleaning and solution discoloration ability. The ZnO-nanorod-coated cotton fabrics exhibited excellent photocatalytic activity, as the stains of orange II dye disappeared predominantly within 4 h and the coated fabrics became almost white after 6 h. Analyses of thermal properties, water vapor permeability (WVP), air permeability and stiffness were also performed to investigate the physiological comfort of the ZnO-nanorod-coated fabrics. The thermal conductivity and thermal absorptivity were observed to increase with an increase in the size and density of the ZnO nanorods. Moreover, non-significant reductions in water vapor permeability and air permeability were observed with application of the ZnO nanorods. The stiffness of the ZnO-nanorod-coated cotton fabric increased due to the complete coverage of fibers by the uniform growth of the ZnO nanorods. The ZnO-nanorod-coated cotton fabrics also showed good washing durability and reusability.Muhammad Zaman KhanJiri MilitkyMichal PetruBlanka TomkováAzam AliAsif JavedMusaddaq AzeemDana KřemenákováMDPI AGarticlenanorodsmicrowaveself-cleaningphotocatalyticphysiological comfortEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1309, p 1309 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanorods microwave self-cleaning photocatalytic physiological comfort Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	nanorods microwave self-cleaning photocatalytic physiological comfort Engineering (General). Civil engineering (General) TA1-2040 Muhammad Zaman Khan Jiri Militky Michal Petru Blanka Tomková Azam Ali Asif Javed Musaddaq Azeem Dana Křemenáková Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
description	The main aim of the present study was to investigate the effect of microwave irradiation time on the photocatalytic and physiological comfort characteristics of zinc-oxide-nanorod-coated cotton fabrics. An ultra-fast technique was employed to grow the zinc oxide nanorods on cotton fabrics using a microwave-assisted hydrothermal method. The axial (length) and lateral (diameter) growth of the zinc oxide nanorods was observed to increase with microwave irradiation time. The ZnO nanorods uniformly and entirely covered the cotton fibers. The surface morphology, topography and chemical characteristics of the ZnO nanorods were investigated by scanning electron microscopy (SEM), EDS analysis, X-ray diffraction (XRD), atomic force microscopy (AFM) and inductively coupled plasma-optical emission spectrometry (<i>ICP</i>-<i>OES</i>). The degradation of orange II dye under UV light irradiation was observed to assess photocatalytic self-cleaning and solution discoloration ability. The ZnO-nanorod-coated cotton fabrics exhibited excellent photocatalytic activity, as the stains of orange II dye disappeared predominantly within 4 h and the coated fabrics became almost white after 6 h. Analyses of thermal properties, water vapor permeability (WVP), air permeability and stiffness were also performed to investigate the physiological comfort of the ZnO-nanorod-coated fabrics. The thermal conductivity and thermal absorptivity were observed to increase with an increase in the size and density of the ZnO nanorods. Moreover, non-significant reductions in water vapor permeability and air permeability were observed with application of the ZnO nanorods. The stiffness of the ZnO-nanorod-coated cotton fabric increased due to the complete coverage of fibers by the uniform growth of the ZnO nanorods. The ZnO-nanorod-coated cotton fabrics also showed good washing durability and reusability.
format	article
author	Muhammad Zaman Khan Jiri Militky Michal Petru Blanka Tomková Azam Ali Asif Javed Musaddaq Azeem Dana Křemenáková
author_facet	Muhammad Zaman Khan Jiri Militky Michal Petru Blanka Tomková Azam Ali Asif Javed Musaddaq Azeem Dana Křemenáková
author_sort	Muhammad Zaman Khan
title	Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
title_short	Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
title_full	Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
title_fullStr	Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
title_full_unstemmed	Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties
title_sort	ultra-fast growth of zno nanorods on cotton fabrics and their self-cleaning and physiological comfort properties
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ab8172c8cf324aa48c249fe20ace5e60
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Ultra-Fast Growth of ZnO Nanorods on Cotton Fabrics and Their Self-Cleaning and Physiological Comfort Properties

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