Constructing cubic-orthorhombic surface-phase junctions of NaNbO3 towards significant enhancement of CO2 photoreduction

被引：88
作者：
Li, Peng [1 ]
Xu, Hua [2 ]
Liu, Lequan [1 ,4 ]
Kako, Tetsuya [1 ]
Umezawa, Naoto [1 ,2 ,3 ]
Abe, Hideki [1 ,2 ,3 ]
Ye, Jinhua [1 ,2 ,4 ]
机构：
[1] Natl Inst Mat Sci, Catalyt Mat Grp, Environm Remediat Mat Unit, Tsukuba, Ibaraki 3050044, Japan
[2] Tianjin Univ, Sch Mat Sci & Engn, TU NIMS Joint Res Ctr, Tianjin 300072, Peoples R China
[3] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan
[4] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 16期
关键词：
PHOTOCATALYTIC ACTIVITY; TIO2; PHOTOCATALYSIS; NIOBATE; DIOXIDE;
D O I：
10.1039/c4ta00105b
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：
A NaNbO3 photocatalyst with cubic-orthorhombic surface-junctions was synthesized by a polymerized-complex method. Compared with cubic and orthorhombic NaNbO3, the activity of mixed-phase NaNbO3 is enhanced by 30% and 200% in reducing CO2 into CH4, respectively. The enhancement of photoactivity over mixed-phase NaNbO3 was attributed to the cubic-orthorhombic surface-junctions which improved the charge separation.
引用
收藏
页码：5606 / 5609
页数：4
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