Photoluminescence spectroscopy of NaTaO3 and NaTaO3 : Bi3+ photocatalysts

	Photoluminescence spectroscopy of NaTaO3 and NaTaO3 : Bi3+ photocatalysts
	Shi Jian-Ying; Chen Tao; Guo-Hua, Zhou; Feng Zhao-Chi; Ying Pin-Liang; Li Can
刊名	chemical journal of chinese universities-chinese
	2007-04-10
卷号	28 期号:4 页码:692-695
关键词	photoluminescence spectroscopy NaTaO3 NaTaO3 : Bi3+
英文摘要	natao3 and bi3+ doped natao3 were prepared by conventional high temperature solid state reactions and characterized by the photoluminescence spectroscopy. the luminescence characterization of natao3 is sensitive to its preparation condition. under the condition of na scarcity, two luminescence bands of 515 nm and 745 nm are observed in the photoluminescence spectra, which are ascribed to the antisite defects of ta-na(center dot center dot center dot) and v-na defects, respectively. under the condition of na enough, the luminescence band shifts to about 460 nm, which are originated from the intrinsic tantalate groups. the introduction of bi3+ causes the emission band shifts from 515 to 455 nm, namely, the ta-na(center dot center dot center dot) defects are replaced by bi-na(center dot center dot) defects and the luminescence characterization of natao3 is shift to the direction of a higher n( na )(center dot)/n( ta ) ratio. the present work also demonstrates that the photoluminescence spectroscopy is a powerful technique to characterize the defect chemistry in semiconductor materials and it is especially useful in the study of photocatalysts.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	luminescence ; water ; linbo3 ; o-2 ; h-2 ; bi3+ ; li
收录类别	SCI
语种	英语
WOS记录号	WOS:000245874300022
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140555]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Shi Jian-Ying,Chen Tao,Guo-Hua, Zhou,et al. Photoluminescence spectroscopy of NaTaO3 and NaTaO3 : Bi3+ photocatalysts[J]. chemical journal of chinese universities-chinese,2007,28(4):692-695.
APA	Shi Jian-Ying,Chen Tao,Guo-Hua, Zhou,Feng Zhao-Chi,Ying Pin-Liang,&Li Can.(2007).Photoluminescence spectroscopy of NaTaO3 and NaTaO3 : Bi3+ photocatalysts.chemical journal of chinese universities-chinese,28(4),692-695.
MLA	Shi Jian-Ying,et al."Photoluminescence spectroscopy of NaTaO3 and NaTaO3 : Bi3+ photocatalysts".chemical journal of chinese universities-chinese 28.4(2007):692-695.