TY - JOUR
T1 - Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNOx properties
AU - Wei, Yuelin
AU - Huang, Yunfang
AU - Wu, Jihuai
AU - Wang, Min
AU - Guo, Chongshen
AU - Qiang, Dong
AU - Yin, Shu
AU - Sato, Tsugio
N1 - Funding Information:
The project was jointly supported by the Provincial Natural Science Foundation of Fujian Province ( 2010J01290 ), Natural Science Foundation of Quanzhou City ( 2011G4 ) and the Fundamental Research Funds for the Central Universities ( JB-ZR1109 , JB-ZR1212 ).
PY - 2013/3/5
Y1 - 2013/3/5
N2 - This paper presents novel and facile methods for the fabrication of a series ZnO spheres by template-free, carbon template and hydrated-salt assisted solvothermal process, respectively. Phase purity and crystalline structure of the products were studied by X-ray diffraction analysis. SEM was employed to investigate the morphology and the fabrication of the monodisperse. BET analysis revealed that the as-prepared samples possessed huge specific surface area. UV-vis diffuse reflectance spectroscopy showed that these ZnO hollow spheres have a higher absorption. The as-prepared samples showed excellent photocatalytic activity for the decomposition of NOx gas under both visible-light and UV light irradiation (λ>510, 400, 290nm), being superior to that of commercial TiO2 powders.
AB - This paper presents novel and facile methods for the fabrication of a series ZnO spheres by template-free, carbon template and hydrated-salt assisted solvothermal process, respectively. Phase purity and crystalline structure of the products were studied by X-ray diffraction analysis. SEM was employed to investigate the morphology and the fabrication of the monodisperse. BET analysis revealed that the as-prepared samples possessed huge specific surface area. UV-vis diffuse reflectance spectroscopy showed that these ZnO hollow spheres have a higher absorption. The as-prepared samples showed excellent photocatalytic activity for the decomposition of NOx gas under both visible-light and UV light irradiation (λ>510, 400, 290nm), being superior to that of commercial TiO2 powders.
KW - Hierarchical structure
KW - Photocatalytic activity
KW - ZnO
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U2 - 10.1016/j.jhazmat.2013.01.012
DO - 10.1016/j.jhazmat.2013.01.012
M3 - Article
C2 - 23357509
AN - SCOPUS:84873843152
SN - 0304-3894
VL - 248-249
SP - 202
EP - 210
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1
ER -