DOI: 10.1016/j.jcou.2016.08.007
Scopus记录号: 2-s2.0-84986205305
论文题名: CO2 utilization for fast preparation of nanocrystalline hydrozincite
作者: Turianicová E. ; Kaňuchová M. ; Zorkovská A. ; Holub M. ; Bujňáková Z. ; Dutková E. ; Baláž M. ; Findoráková L. ; Balintová M. ; Obut A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 16 起始页码: 328
结束页码: 335
语种: 英语
英文关键词: CO2 storage
; Mechanochemical processing
; Mineral carbonation
; Nanomaterial
Scopus关键词: Carbon dioxide
; Crystal structure
; Decomposition
; Emission spectroscopy
; Fourier transform infrared spectroscopy
; Nanocrystals
; Nanostructured materials
; Optical properties
; Particle size
; Reaction kinetics
; X ray diffraction analysis
; Brunauer-emmett-teller surface areas
; Fourier transform infra reds
; Mechano-chemical processing
; Mechanochemical process
; Mineral carbonation
; Physicochemical property
; Temperature and pressures
; Ultraviolet visible absorption
; X ray photoelectron spectroscopy
英文摘要: In this study, gaseous CO2, solid ZnO and liquid H2O were converted to nanocrystalline (13 nm) hydrozincite, i.e. Zn5(CO3)2(OH)6 via fast one-step mechanochemical process at ambient temperature and pressure. The mechanically induced conversion of the three-phase mixture, studied by X-ray diffraction analysis, Fourier-transform infrared and X-ray photoelectron spectroscopies, completed in 10 min. X-ray diffraction and Fourier-transform infrared spectroscopy indicated the presence of disorder in the crystal structure of mechanosynthesized hydrozincite The physico-chemical properties of the mechanosynthesized hydrozincite, characterized in the view of surface and optical properties, were compared with the commercial hydrozincite. It was found that the Brunauer-Emmett-Teller surface area was almost 2 times higher (56.7 m2/g) than the corresponding value of the commercial material, which is related to the smaller particle size (∼230 nm). Both the ultraviolet-visible absorption and photoluminescence emission spectra recorded for the mechanosynthesized hydrozincite indicated size effect. The weight loss (26.5%) obtained during thermal decomposition of the mechanosynthesized material is close to the theoretical weight loss value of hydrozincite. © 2016 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52865
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Turianicová E.,Kaňuchová M.,Zorkovská A.,et al. CO2 utilization for fast preparation of nanocrystalline hydrozincite[J]. Journal of CO2 Utilization,2016-01-01,16