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Achieving maximum photo-oxidation reactivity of Cs0.68Ti1.83O4-xNx photocatalysts through valence band fine-tuning
Liu, Gang1; Niu, Ping1; Wang, Lianzhou2,3; Lu, Gao Qing (Max)2,3; Cheng, Hui-Ming1
Corresponding AuthorLiu, Gang()
2011
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume1Issue:2Pages:222-225
AbstractDoes 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.
Funding OrganizationMinistry of Science and Technology of China ; NSFC ; Solar Energy Initiative of the Chinese Academy of Sciences
DOI10.1039/c0cy00029a
Indexed BySCI
Language英语
Funding ProjectMinistry of Science and Technology of China[2009CB220001] ; NSFC[50921004] ; NSFC[51002160] ; NSFC[21090343] ; Solar Energy Initiative of the Chinese Academy of Sciences
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000294009000007
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/106463
Collection中国科学院金属研究所
Corresponding AuthorLiu, Gang
Affiliation1.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
Recommended Citation
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.
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