Enhanced visible light photocatalytic activity in N-doped edge- and corner-truncated octahedral Cu2O
文献类型：期刊论文
| 作者 | Thomas, Tiju2; Zou, Mingming1; Liu, Honghong1; Feng, Lu1; Yang, Minghui1 |
| 刊名 | SOLID STATE SCIENCES
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 65页码:22-28 |
| 关键词 | Morphology Control Of Cu2o Ammonothermal Processing n Doping Visible Light Photoactivity |
| ISSN号 | 1293-2558 |
| DOI | 10.1016/j.solidstatesciences.2016.12.021 |
| 文献子类 | Article |
| 英文摘要 | Edge- and corner-truncated octahedral Cu2O is successfully synthesized using an aqueous mixture of CuCl2, sodium dodecyl sulfate, NaOH, and NH2OH3 center dot HCI. Cu2O1-xNx(150 degrees C, 30 min) samples are synthesized by nitridation of Cu2O using an ammonotherinal process. Cu retains a formal valence state through and beyond the nitridation process. N concentration in this sample is 1.73 at%, out of which 1.08 at% is substitutional in nature. Photocatalytic activity of Cu2O1-xNx(150 degrees C, 30 min) sample is investigated and compared to that of pristine edge- and corner-truncated octahedral Cu2O. Results show that Cu2O1-xNx(150 degrees C, 30 min) sample with dominant {110} facets has a higher photocatalytic activity than the pristine Cu2O material. Higher surface energy and a greater density of the "Cu" dangling bonds on {110} facets of edge- and corner-truncated octahedral Cu2O1-xNx is the plausible reason for the observed optimum catalytic activity. Furthermore defect states induced by nitridation results in improved visible light adsorption. And also the band edge states changes which brought about by N doping. This is an interesting result since it bypasses the usual challenge faced by pristine Cu2O which have band edge states between which transitions are normally forbidden. Selective radical quenching experiments suggest that photocatalytic activity of Cu2O1-xNx is due to formation of hydroxyl radicals in water, subsequent to photogeneration of charge carriers in the photocatalyst. (C) 2017 Elsevier Masson SAS. All rights reserved. |
| WOS关键词 | SUPERCAPACITOR ELECTRODES ; NANOCRYSTALS ; TIO2 ; PERFORMANCE ; EVOLUTION ; CATALYSTS |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000395615700004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169376]  |
| 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 |
| 通讯作者 | Thomas, Tiju; Yang, Minghui |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Thomas, Tiju,Zou, Mingming,Liu, Honghong,et al. Enhanced visible light photocatalytic activity in N-doped edge- and corner-truncated octahedral Cu2O[J]. SOLID STATE SCIENCES,2017,65:22-28. |
| APA | Thomas, Tiju,Zou, Mingming,Liu, Honghong,Feng, Lu,&Yang, Minghui.(2017).Enhanced visible light photocatalytic activity in N-doped edge- and corner-truncated octahedral Cu2O.SOLID STATE SCIENCES,65,22-28. |
| MLA | Thomas, Tiju,et al."Enhanced visible light photocatalytic activity in N-doped edge- and corner-truncated octahedral Cu2O".SOLID STATE SCIENCES 65(2017):22-28. |
入库方式： OAI收割
来源：大连化学物理研究所
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