Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNOx properties

Yuelin Wei; Yunfang Huang; Jihuai Wu; Min Wang; Chongshen Guo; Dong Qiang; Shu Yin; Tsugio Sato

doi:10.1016/j.jhazmat.2013.01.012

Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNO_x properties

Yuelin Wei
, Yunfang Huang^*
, Jihuai Wu
, Min Wang
, Chongshen Guo
, Dong Qiang
, Shu Yin
, Tsugio Sato

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

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 NO_x gas under both visible-light and UV light irradiation (λ>510, 400, 290nm), being superior to that of commercial TiO₂ powders.

Original language	English
Pages (from-to)	202-210
Number of pages	9
Journal	Journal of Hazardous Materials
Volume	248-249
Issue number	1
DOIs	https://doi.org/10.1016/j.jhazmat.2013.01.012
State	Published - 5 Mar 2013
Externally published	Yes

Keywords

Hierarchical structure
Photocatalytic activity
ZnO

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10.1016/j.jhazmat.2013.01.012

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title = "Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNOx properties",

abstract = "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.",

keywords = "Hierarchical structure, Photocatalytic activity, ZnO",

author = "Yuelin Wei and Yunfang Huang and Jihuai Wu and Min Wang and Chongshen Guo and Dong Qiang and Shu Yin and Tsugio Sato",

year = "2013",

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doi = "10.1016/j.jhazmat.2013.01.012",

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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

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

UR - https://www.scopus.com/pages/publications/84873843152

U2 - 10.1016/j.jhazmat.2013.01.012

DO - 10.1016/j.jhazmat.2013.01.012

M3 - 文章

C2 - 23357509

AN - SCOPUS:84873843152

SN - 0304-3894

VL - 248-249

SP - 202

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1

ER -

Synthesis of hierarchically structured ZnO spheres by facile methods and their photocatalytic deNO_x properties

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Keywords

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