| The roles of density-tunable surface oxygen vacancy over bouquet-like Bi2O3 in enhancing photocatalytic activity | |
| Department | OSSO国家重点实验室 |
Wu YQ(吴玉琪) ; Lu GX(吕功煊); Lv GX(吕功煊)
| |
| The second department | erc国家工程研究中心 |
| 2014 | |
| Source Publication | Physical Chemistry Chemical Physics
 |
| ISSN | 1463-9076 |
| Volume | 16Issue:9Pages:4165-4175 |
| Abstract | Bouquet-like hierarchical Bi2O3 photocatalyst materials with high-density surface oxygen vacancy are synthesized via a hydrothermal method by the synergetic control of NaOH and a polyvinyl alcohol (PVA) stabilizer. The OH- ion addition led to the formation of more relaxed PVA macromolecular clusters, as a result, a thinner PVA film was formed, the species adsorbed on the surface of the produced Bi2O3 crystal nucleus could tune both the surface microstructure size and oxygen vacancy density via controlling the velocity, transfer and reaction of the OH- ions. The significant enhancement of photocatalytic performances could be attributed to the high density of the surface oxygen vacancy which was propitious to the charge separation efficiencies, distribution characteristic, and its role in a photo-redox reaction. A turnable-bending self-assembly mechanism was proposed to clarify the formation process of the bouquet-like hierarchical structure. |
| Subject Area | 环境催化与清洁能源 |
| DOI | 10.1039/c3cp54461c |
| Funding Organization | the 973 and 863 Programs of Department of Sciences and Technology of China (2013CB632404;2012AA051501;2009CB220003);the NSF of China (grant no. 21173242) |
| Indexed By | SCI |
| If | 4.493 |
| Language | 英语 |
| Funding Project | 环境催化与清洁能源研究组;环境催化与氢能源研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/5085 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Lv GX(吕功煊) |
| Affiliation | Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Wu YQ,Lu GX,Lv GX. The roles of density-tunable surface oxygen vacancy over bouquet-like Bi2O3 in enhancing photocatalytic activity[J]. Physical Chemistry Chemical Physics,2014,16(9):4165-4175. |
| APA | Wu YQ,Lu GX,&吕功煊.(2014).The roles of density-tunable surface oxygen vacancy over bouquet-like Bi2O3 in enhancing photocatalytic activity.Physical Chemistry Chemical Physics,16(9),4165-4175. |
| MLA | Wu YQ,et al."The roles of density-tunable surface oxygen vacancy over bouquet-like Bi2O3 in enhancing photocatalytic activity".Physical Chemistry Chemical Physics 16.9(2014):4165-4175. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| PCCP,2014,16(9),4165（3328KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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