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- Title
Recycling of the hyperaccumulator Brassica juncea L.: synthesis of carbon nanotube-Cu/ZnO nanocomposites.
- Authors
Qu, Jiao; Luo, Chunqiu; Cong, Qiao; Yuan, Xing
- Abstract
The methods of synthesizing carbon nanotube (CNTs)-Cu/ZnO nanocomposites using a Cu hyperaccumulator ( Brassica juncea L.) constitute a new insight into the recycling of hyperaccumulators and provide a new route for the further development of green nanostructure syntheses. In this paper, CNTs-Cu/ZnO nanocomposites have been synthesized using B. juncea plants as the sources of C, Cu, and Zn. The synthesized CNTs-Cu/ZnO nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectra (EDS). The synthesized CNTs were characterized further by selected area diffraction (SAD) patterns and Raman spectroscopy. The results demonstrated that the structure of individual CNTs was middle-hollow, with an outer diameter of about 80 nm. The synthesized CNTs were not at all crystalline and there were a few defects in the walls. The outer diameter of CNTs-Cu/ZnO nanocomposites was 110 nm. The diameters of Cu/ZnO nanoparticles were 29.5/32.7 nm, respectively. Cu/ZnO nanoparticles that had grown onto the CNT surface were nonuniform and agglomerated. The Cu/ZnO nanoparticles were pure.
- Subjects
WASTE recycling; SYNTHESIS of Nanocomposite materials; HYPERACCUMULATOR plants; CARBON nanotubes; ZINC oxide; COPPER oxide; BRASSICA juncea
- Publication
Journal of Material Cycles & Waste Management, 2014, Vol 16, Issue 1, p162
- ISSN
1438-4957
- Publication type
Article
- DOI
10.1007/s10163-013-0156-3