Photocatalytic reduction of CO2 to methane over HNb3O8 nanobelts

被引：61
作者：
Li, Xiukai [1 ,2 ,3 ]
Pan, Huiqi [1 ,2 ,3 ]
Li, Wei [1 ,2 ,3 ]
Zhuang, Zongjin [1 ,2 ,3 ]
机构：
[1] Jiangsu Univ, Sci Res Acad, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, China Australia Joint Res Ctr Funct Mol Mat, Zhenjiang 212013, Peoples R China
[3] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
来源：
APPLIED CATALYSIS A-GENERAL | 2012年 / 413卷
基金：
中国国家自然科学基金;
关键词：
Niobic acid; Nanobelt; CO2; Photoreduction; Methane; VISIBLE-LIGHT IRRADIATION; LAMELLAR NIOBIC ACID; PHOTOREDUCTION; WATER; TIO2; NANOCOMPOSITES; CATALYSTS; HYDROGEN; DIOXIDE; OXIDES;
D O I：
10.1016/j.apcata.2011.10.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
KNb3O8 and HNb3O8 nanobelts were prepared by hydrothermal synthesis. The characteristics of samples were investigated by XRD, SEM, and UV-vis diffuse reflectance spectroscopy. The KNb3O8 and HNb3O8 nanobelts exhibited much higher activities for CO2 photoreduction to methane than commercial TiO2 (Degussa P25), and the KNb3O8 and HNb3O8 particles prepared by conventional solid state reaction. It was also found that either the HNb3O8 nanobelts or the HNb3O8 particles performed better than the corresponding KNb3O8 counterpart. It is proposed that the nanobelt-like morphology and the protonic acidity contribute to the higher photocatalytic activity of the HNb3O8 nanobelts. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：103 / 108
页数：6
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