Microwave-assisted synthesis and highly photocatalytic activity of MWCNT/ZnSe heterostructures

The multi-walled carbon nanotubes (MWCNTs) coated with the face-center cubic ZnSe nanoparticles with a uniform and small diameter have been prepared to form MWCNT/ZnSe heterostructures by microwave irradiation. The morphology, loading quantity and size of the ZnSe nanoparticles in the range of 15–50...

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Published inMaterials chemistry and physics Vol. 113; no. 2; pp. 539 - 543
Main Authors Wu, Hua-Qiang, Wang, Qiang, Yao, You-Zhi, Qian, Cheng, Cao, Pei-Pei, Zhang, Xiao-Jun, Wei, Xian-Wen
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.02.2009
Subjects
Carbon nanotubes
Microwave irradiation
Photocatalytic activity
ZnSe
Carbon nanotubes
Microwave irradiation
Photocatalytic activity
ZnSe
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Summary:The multi-walled carbon nanotubes (MWCNTs) coated with the face-center cubic ZnSe nanoparticles with a uniform and small diameter have been prepared to form MWCNT/ZnSe heterostructures by microwave irradiation. The morphology, loading quantity and size of the ZnSe nanoparticles in the range of 15–50 nm can be controlled easily by adjusting the microwave power, pH value of the initial solution, the molar ratios of the Zn(AC) 2/MWCNTs and the appropriate complexing agent. The photoluminescence measurement indicates that the MWCNT/ZnSe heterostructures are blue-shifted compared to reported bulk ZnSe. The UV–vis absorption spectra of the heterostructures appears two sharp absorption peaks at 336 and 344 nm, respectively. It was demonstrated that the heterostructures could photodegrade the fuchsine acid in the solution with highly photocatalytic activity.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2008.08.004