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DOI | 10.1126/science.aat6752 |
High-affinity adsorption leads to molecularly ordered interfaces on TiO2 in air and solution | |
Balajka, Jan1; Hines, Melissa A.2; DeBenedetti, William J. I.2; Komora, Mojmir1,3,4; Pavelec, Jiri1; Schmid, Michael1; Diebold, Ulrike1 | |
2018-08-24 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 361期号:6404页码:786-788 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; USA; Czech Republic |
英文摘要 | Researchers around the world have observed the formation of molecularly ordered structures of unknown origin on the surface of titanium dioxide (TiO2) photocatalysts exposed to air and solution. Using a combination of atomic-scale microscopy and spectroscopy, we show that TiO2 selectively adsorbs atmospheric carboxylic acids that are typically present in parts-per-billion concentrations while effectively repelling other adsorbates, such as alcohols, that are present in much higher concentrations. The high affinity of the surface for carboxylic acids is attributed to their bidentate binding. These self-assembled monolayers have the unusual property of being both hydrophobic and highly water-soluble, which may contribute to the self-cleaning properties of TiO2. This finding is relevant to TiO2 photocatalysis, because the self-assembled carboxylate monolayers block the undercoordinated surface cation sites typically implicated in photocatalysis. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442828700041 |
WOS关键词 | TIO2(110) SURFACE ; ACID |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/199425 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Tech Univ Wien, Inst Appl Phys, Wiedner Hauptstr 8-10-134, A-1040 Vienna, Austria; 2.Cornell Univ, Dept Chem, Ithaca, NY 14853 USA; 3.Cent European Inst Technol, Purkynova 123, Brno 61200, Czech Republic; 4.Brno Univ Technol, Inst Phys Engn, Tech 2896 2, Brno 61669, Czech Republic |
推荐引用方式 GB/T 7714 | Balajka, Jan,Hines, Melissa A.,DeBenedetti, William J. I.,et al. High-affinity adsorption leads to molecularly ordered interfaces on TiO2 in air and solution[J]. SCIENCE,2018,361(6404):786-788. |
APA | Balajka, Jan.,Hines, Melissa A..,DeBenedetti, William J. I..,Komora, Mojmir.,Pavelec, Jiri.,...&Diebold, Ulrike.(2018).High-affinity adsorption leads to molecularly ordered interfaces on TiO2 in air and solution.SCIENCE,361(6404),786-788. |
MLA | Balajka, Jan,et al."High-affinity adsorption leads to molecularly ordered interfaces on TiO2 in air and solution".SCIENCE 361.6404(2018):786-788. |
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