| 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 Author | Liu, Gang() |
| 2011 | |
| Source Publication | CATALYSIS SCIENCE & TECHNOLOGY
 |
| ISSN | 2044-4753 |
| Volume | 1Issue:2Pages:222-225 |
| Abstract | 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. |
| Funding Organization | Ministry of Science and Technology of China ; NSFC ; Solar Energy Initiative of the Chinese Academy of Sciences |
| DOI | 10.1039/c0cy00029a |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Ministry of Science and Technology of China[2009CB220001] ; NSFC[50921004] ; NSFC[51002160] ; NSFC[21090343] ; Solar Energy Initiative of the Chinese Academy of Sciences |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000294009000007 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/106463 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, Gang |
| Affiliation | 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 |
| 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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