Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning

doi:10.1039/c0cy00029a

IMR OpenIR

	Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning
	Liu, Gang 1; Niu, Ping 1; Wang, Lianzhou 2,3; Lu, Gao Qing (Max)2,3; Cheng, Hui-Ming 1
通讯作者	Liu, Gang()
	2011
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
ISSN	2044-4753
卷号	1 期号:2 页码:222-225
摘要	Does a wider absorption range of the photocatalyst always result in a higher photoreactivity? By investigating a set of Cs0.68Ti1.83O4-xNx (x = 0-0.31) photocatalysts with a continuously tuned absorption edge, we found that although the absorption edge of Cs0.68Ti1.83O4-xNx is gradually shifted to the low-energy region with the increase of the nitrogen dopant, the photoreactivity of the photocatalyst in terms of generating the-OH radical does not correspondingly increase under the irradiation of monochromatic light of 254 nm and continuous spectrum of > 300 nm. The fundamental mechanism of the anion dopant enhanced photocatalytic activity through the interplay of three key factors-absorbance, oxidative potential and mobility of charge carriers-is proposed to explain the observed photocatalytic activity change.
资助者	Ministry of Science and Technology of China ; NSFC ; Solar Energy Initiative of the Chinese Academy of Sciences
DOI	10.1039/c0cy00029a
收录类别	SCI
语种	英语
资助项目	Ministry of Science and Technology of China[2009CB220001] ; NSFC[50921004] ; NSFC[51002160] ; NSFC[21090343] ; Solar Energy Initiative of the Chinese Academy of Sciences
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:000294009000007
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/106465
专题	中国科学院金属研究所
通讯作者	Liu, Gang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Queensland, ARC Ctr Excellence Funct Nanomat, Sch Engn, Brisbane, Qld 4072, Australia 3.Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia
推荐引用方式 GB/T 7714	Liu, Gang,Niu, Ping,Wang, Lianzhou,et al. Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning[J]. CATALYSIS SCIENCE & TECHNOLOGY,2011,1(2):222-225.
APA	Liu, Gang,Niu, Ping,Wang, Lianzhou,Lu, Gao Qing ,&Cheng, Hui-Ming.(2011).Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning.CATALYSIS SCIENCE & TECHNOLOGY,1(2),222-225.
MLA	Liu, Gang,et al."Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning".CATALYSIS SCIENCE & TECHNOLOGY 1.2(2011):222-225.