Exploration of accessibility of internal pore surface by using rigid nanoparticles as a probe for constructing the integrated nanocomposites
文献类型：期刊论文
| 作者 | Lv, Haozheng2; Xing, Yi2; Wang, Yabin1; Li, Xiaoyu3; Zhang, Xueji2; Du, Xin2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-01-30 |
| 卷号 | 815页码:13 |
| 关键词 | Accessibility of pore surface Pore sizes and structures Hexagonal ordered mesopores Center-radial pores Rigid nanoparticles Integrated nanocomposites |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2019.152641 |
| 英文摘要 | Many mesoporous materials with different morphologies, dimensions, pore sizes and structures have been fabricated and served as carriers to load a wide range of guest species. The high accessibility of pore interiors should be of very significance for efficient loading in the nanocarriers and resultant performance of the formed nanocomposites. In this work, by electrostatic self-assembly, the rigid nanoparticles (NPs) were used as probes to detect the accessibility of internal surface of different pore channels of two typical porous materials, i.e., conventional mesoporous silica nanospheres (MSNs) with uniform hexagonal ordered mesopores and recently created dendritic porous silica NPs (DPSNs) with center-radial porous structure. Interestingly, even 1.6 +/- 0.4 nm of ultrafine Au NPs have an uneven and low density distribution on the internal pore surface of MSNs owing to small tubular pores with only two openings. On the contrary, the rigid NPs with different particle sizes from 1.6 +/- 0.4 nm to 7.8 +/- 1.9 nm can enter DPSNs through open center-radial large pores with 360 degrees diffusion direction, and achieve a high density and well-dispersed loading on the surface of internal pore channels. Besides, based on the size effect, the integrated DPSNs-NH2@Au@Pt nanocomposite with hierarchical spatial distributions of large Au NPs on particle surface and small Pt NPs on both internal pore surface and particle surface were successfully constructed. These results provide an important insight into the accessibility of internal pore surface toward rigid NPs and the smart construction of multifunctional nanocomposites. (C) 2019 Elsevier B.V. All rights reserved. |
| WOS关键词 | MESOPOROUS SILICA NANOPARTICLES ; GOLD NANOPARTICLES ; FIBROUS NANOSILICA ; DRUG-DELIVERY ; CATALYSIS ; SHELL ; ADSORPTION ; PARTICLES ; PLATFORM ; RELEASE |
| 资助项目 | Fundamental Research Funds for the Central Universities[2302015-06500017] ; Fundamental Research Funds for the Central Universities[FRF-BD-18017A] ; Fundamental Research Funds for the Central Universities[FRF-BR-17-032A] ; Fundamental Research Funds for the Central Universities[FRF-BR-17-002B] ; Fundamental Research Funds for the Central Universities[FRF-BD-17-016A] ; National Natural Science Foundation of China[21501009] ; National Natural Science Foundation of China[51671181] ; Natural Science Basic Research Plan in Shaanxi Province of China[2019JQ-104] ; Beijing Municipal Science and Technology Commission[z131102002813058] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000502521900174 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; Beijing Municipal Science and Technology Commission |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/38484]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Yabin; Li, Xiaoyu; Du, Xin |
| 作者单位 | 1.Yanan Univ, Coll Chem & Chem Engn, Shaanxi Key Lab Chem React Engn, Yanan 716000, Shaanxi, Peoples R China 2.Univ Sci & Technol Beijing, Res Ctr Bioengn & Sensing Technol, Dept Chem & Biol Engn, Beijing Key Lab Bioengn & Sensing Technol, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Haozheng,Xing, Yi,Wang, Yabin,et al. Exploration of accessibility of internal pore surface by using rigid nanoparticles as a probe for constructing the integrated nanocomposites[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,815:13. |
| APA | Lv, Haozheng,Xing, Yi,Wang, Yabin,Li, Xiaoyu,Zhang, Xueji,&Du, Xin.(2020).Exploration of accessibility of internal pore surface by using rigid nanoparticles as a probe for constructing the integrated nanocomposites.JOURNAL OF ALLOYS AND COMPOUNDS,815,13. |
| MLA | Lv, Haozheng,et al."Exploration of accessibility of internal pore surface by using rigid nanoparticles as a probe for constructing the integrated nanocomposites".JOURNAL OF ALLOYS AND COMPOUNDS 815(2020):13. |
入库方式： OAI收割
来源：过程工程研究所
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