Synthesis of carbon nanotube/ZnO nanocomposites using absorbent cotton and their photocatalytic activity
Synthesis of carbon nanotube/ZnO nanocomposites using absorbent cotton and their photocatalytic activity
- Author(s): Jiao Qu ; Chunqiu Luo ; Qiao Cong
- DOI: 10.1049/mnl.2012.0619
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- Author(s): Jiao Qu 1, 2 ; Chunqiu Luo 1 ; Qiao Cong 1
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View affiliations
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Affiliations:
1: School of Chemistry and Chemical Engineering, Bohai University, Jinzhou, People's Republic of China
2: School of Urban and Environmental Sciences, Northeast Normal University, Changchun, People's Republic of China
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Affiliations:
1: School of Chemistry and Chemical Engineering, Bohai University, Jinzhou, People's Republic of China
- Source:
Volume 7, Issue 10,
October 2012,
p.
1064 – 1068
DOI: 10.1049/mnl.2012.0619 , Online ISSN 1750-0443
Carbon nanotubes (CNTs) and ZnO-coated carbon nanotubes (CNT/ZnO) nanocomposites were synthesised by a rapid heating of absorbent cotton and mixtures of suspension of Zn(OH)2/absorbent cotton at about 600°C, respectively. The products were characterised by X-ray diffraction, scanning electron microscopy, selected area diffraction, Raman spectrum, energy dispersive spectrum and infrared absorption spectroscopy. The photocatalytic activity of the CNT/ZnO nanocomposites for the degradation of rhodamine B (RhB) was investigated under ultraviolet (UV) light irradiation. The results show that the structure of the synthesised CNTs is middle-hollow, with inner and outer diameter of about 10 and 80 nm, and their average length is more than 1 µm. ZnO nanoparticles on the surface of CNTs are nonuniform with a sheet shape, and the outer diameter of the CNT/ZnO nanocomposites is about 110 nm. The degradation efficiency of RhB by the CNT/ZnO nanocomposites was higher than that by other catalysts such as CNTs, pure ZnO and the simple mechanical mixtures of CNTs and ZnO, which came up to 98% after 2 h UV light irradiation.
Inspec keywords: scanning electron microscopy; nanocomposites; photodissociation; X-ray chemical analysis; infrared spectra; catalysis; II-VI semiconductors; Raman spectra; rapid thermal processing; X-ray diffraction; carbon nanotubes; wide band gap semiconductors; zinc compounds; nanofabrication
Other keywords:
Subjects: Other heat and thermomechanical treatments; Methods of nanofabrication and processing; Heterogeneous catalysis at surfaces and other surface reactions; Infrared and Raman spectra in inorganic crystals; Photolysis and photodissociation by IR, UV and visible radiation; Ultraviolet, visible and infrared radiation effects; Electromagnetic radiation spectrometry (chemical analysis)
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