DOI: 10.1016/j.marpolbul.2014.02.011
Scopus记录号: 2-s2.0-84906266788
论文题名: Photocatalytic splitting of seawater effected by (Ni-ZnO)@C nanoreactors
作者: Yang T.-C. ; Chang F.-C. ; Wang H.P. ; Wei Y.-L. ; Jou C.-J.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 85, 期: 2 起始页码: 696
结束页码: 699
语种: 英语
英文关键词: Core-shell
; Nanoreactors
; Photocatalysis
; Seawater
; Yolk-shell
Scopus关键词: Carbon
; Carbonization
; Nanoparticles
; Nanoreactors
; Photocatalysis
; Seawater
; Seawater effects
; Shells (structures)
; X ray diffraction
; Zinc oxide
; Collision frequency
; Core-shell
; Core-shell nanoparticles
; Photocatalytic splitting
; Scattering spectroscopy
; X-ray diffraction spectroscopy
; Yolk-shell
; Zinc oxide nanoparticles
; Nickel
; hydrogen
; nanoparticle
; nickel nanoparticle
; sea water
; unclassified drug
; zinc oxide nanoparticle
; beta cyclodextrin
; beta cyclodextrin derivative
; nanoparticle
; nickel
; water
; water pollutant
; zinc oxide
; catalysis
; catalyst
; isotopic ratio
; marine pollution
; nickel
; seawater
; X-ray diffraction
; zinc
; article
; atom
; chemical bond
; chemical structure
; nanoreactor
; particle size
; photocatalysis
; reactor
; analysis
; catalysis
; chemistry
; enzyme active site
; light
; nanotechnology
; photochemistry
; procedures
; radiation scattering
; spectrophotometry
; ultraviolet radiation
; water pollutant
; X ray diffraction
; beta-Cyclodextrins
; Catalysis
; Catalytic Domain
; Hydrogen
; Light
; Nanoparticles
; Nanotechnology
; Nickel
; Photochemistry
; Scattering, Radiation
; Seawater
; Spectrophotometry
; Ultraviolet Rays
; Water
; Water Pollutants, Chemical
; X-Ray Diffraction
; Zinc Oxide
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Novel photocatalysts i.e., metallic nickel and zinc oxide nanoparticles embedded in the carbon-shell ((Ni-ZnO)@C) have been used for photocatalytic splitting of seawater to generate H2. The (Ni-ZnO)@C core-shell nanoparticles having the Zn/Ni ratios of 0-3 were prepared by carbonization of Ni2+- and Zn2+-β-cyclodextrin at 673K for 2h. To increase the collision frequency of water and photoactive sites within the carbon-shell, Ni and ZnO are partially etched from the (Ni-ZnO)@C core-shell to form yolk-shell nanoparticles with a H2SO4 solution (2N). By X-ray diffraction spectroscopy, mainly Ni and ZnO crystallites are observed in the core- and yolk-shell nanoparticles. The sizes of the Ni and ZnO in the (Ni-ZnO)>C nanoreactors are between 7 and 23nm in diameters determined by TEM and small angel scattering spectroscopy. Under a 5-h UV-Vis light irradiation, 5.01μmol/hgcat of H2 are yielded from photocatalytic splitting of seawater effected by (Ni-ZnO)@C nanoreactors. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85357
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Department of Environmental Engineering, National Cheng-Kung University, Tainan 70101, Taiwan; The Experimental Forest, College of Bio-Resources and Agriculture, National Taiwan University, Nan-Tou 557, Taiwan; Department of Environmental Science and Engineering, Tunghai University, Taichung 407, Taiwan; Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Kaohsiung 811, Taiwan
Recommended Citation:
Yang T.-C.,Chang F.-C.,Wang H.P.,et al. Photocatalytic splitting of seawater effected by (Ni-ZnO)@C nanoreactors[J]. Marine Pollution Bulletin,2014-01-01,85(2)