Effect of Nd2O3 addition on the surface phase of TiO2 and photocatalytic activity studied by UV Raman spectroscopy
文献类型：期刊论文
| 作者 | Yuan, Mengqiong1; Zhang, Jing1; Yan, Song1; Luo, Genxiang1; Xu, Qian2; Wang, Xiang2; Li, Can2 |
| 刊名 | journal of alloys and compounds
 |
| 出版日期 | 2011-05-26 |
| 卷号 | 509期号:21页码:6227-6235 |
| 关键词 | TiO2 modified with Nd2O3 Co-precipitation method Surface crystal phase UV Raman spectroscopy Photocatalysis |
| 英文摘要 | tio2 modified with nd2o3 (nd-tio2) nanoparticles were prepared by a co-precipitation method and utilized as the photocatalysts for the degradation of rhodamine b (rhb). the influence of nd2o3 on the bulk and surface phase, surface area, particle size, and optical response of tio2 was investigated by x-ray diffraction (xrd), uv raman spectroscopy, transmission electron microscopy (tem), bet, and uv-visible diffuse reflectance spectra. it is found that the crystalline phase and phase composition in the bulk and surface region of nd-tio2 calcined at high temperatures can be tuned by changing the amount of nd2o3. based on the results from xps, edx, xrd, and uv raman spectra, it is assumed that nd3+ ions do not enter the tio2 lattice, but highly disperse onto the nd-tio2 particle surface in the form of nd2o3 crystallites. these crystallites inhibit the agglomeration, growth in crystal size, and anatase-to-rutile phase transformation of tio2. in the photocatalytic degradation of rhb reaction, nd-tio2 nanoparticles with higher surface area and wider optical response are more reactive in case of the same surface anatase phase. when the mixed phases of anatase and rutile exist in the surface region of nd-tio2, the synergetic effect over surface area and optical response is the important parameter which determines optimal photocatalytic activity. crown copyright (c) 2011 published by elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; materials science, multidisciplinary ; metallurgy & metallurgical engineering |
| 研究领域[WOS] | chemistry ; materials science ; metallurgy & metallurgical engineering |
| 关键词[WOS] | sol-gel method ; doped tio2 ; nanoparticles ; degradation ; anatase ; rutile ; transformation ; calcination ; powders ; size |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000290441700020 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142396]  |
| 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 | 1.Liaoning Shihua Univ, Sch Chem & Mat Sci, Fushun 113001, Liaoning, Peoples R China 2.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 | Yuan, Mengqiong,Zhang, Jing,Yan, Song,et al. Effect of Nd2O3 addition on the surface phase of TiO2 and photocatalytic activity studied by UV Raman spectroscopy[J]. journal of alloys and compounds,2011,509(21):6227-6235. |
| APA | Yuan, Mengqiong.,Zhang, Jing.,Yan, Song.,Luo, Genxiang.,Xu, Qian.,...&Li, Can.(2011).Effect of Nd2O3 addition on the surface phase of TiO2 and photocatalytic activity studied by UV Raman spectroscopy.journal of alloys and compounds,509(21),6227-6235. |
| MLA | Yuan, Mengqiong,et al."Effect of Nd2O3 addition on the surface phase of TiO2 and photocatalytic activity studied by UV Raman spectroscopy".journal of alloys and compounds 509.21(2011):6227-6235. |
入库方式： OAI收割
来源：大连化学物理研究所
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