Self-template synthesis of ATiO(3) (A = Ba, Pb and Sr) perovskites for photocatalytic removal of NO
Cai, SY; Yu, S; Wan, WC; Wen, W; Zhou, Y
2017
发表期刊RSC ADVANCES
ISSN2046-2069
卷号7期号:44页码:27397-27404
文章类型期刊论文
摘要In this study, we report a self-template hydrothermal method for the synthesis of ATiO(3) (A = Ba, Pb, and Sr) perovskites using anatase TiO2 nanosheets as precursors. Under hydrothermal conditions, ATiO(3) with different structures and morphology can be obtained. These samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The growth mechanism of ATiO(3) was explored by XRD evaluation over different reaction time, and it was observed that PbTiO3 grows most slowly among all the samples including BaTiO3, SrTiO3, BaxPb1-xTiO3 and SrxPb1-xTiO3. The diffusion of A site sources to the solid surface and the reaction at solid/liquid interface could dominate the growth of ATiO(3). All the as-prepared samples exhibited activities toward photocatalytic oxidation of NO at ppb level. Specifically, PbTiO3 has revealed the highest activity under both full spectrum and visible-light irradiation (lambda > 420 nm), whereas BaTiO3 exhibited best selectivity for the formation of ionic species (NO3-), which could be ascribed to different electronic structures and charge separation efficiency of ATiO(3). This study provides some important hints to tune the photocatalytic performances (activity and selectivity) of ATiO(3) through the modification of A site elements.
DOI10.1039/c7ra02433a
收录类别SCI
语种英语
WOS记录号WOS:000402166600026
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27439
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Cai, SY,Yu, S,Wan, WC,et al. Self-template synthesis of ATiO(3) (A = Ba, Pb and Sr) perovskites for photocatalytic removal of NO[J]. RSC ADVANCES,2017,7(44):27397-27404.
APA Cai, SY,Yu, S,Wan, WC,Wen, W,&Zhou, Y.(2017).Self-template synthesis of ATiO(3) (A = Ba, Pb and Sr) perovskites for photocatalytic removal of NO.RSC ADVANCES,7(44),27397-27404.
MLA Cai, SY,et al."Self-template synthesis of ATiO(3) (A = Ba, Pb and Sr) perovskites for photocatalytic removal of NO".RSC ADVANCES 7.44(2017):27397-27404.
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