CAS OpenIR
Exploration of accessibility of internal pore surface by using rigid nanoparticles as a probe for constructing the integrated nanocomposites
Lv, Haozheng1; Xing, Yi1; Wang, Yabin2; Li, Xiaoyu3; Zhang, Xueji1; Du, Xin1
2020-01-30
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume815Pages:13
AbstractMany 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.
KeywordAccessibility of pore surface Pore sizes and structures Hexagonal ordered mesopores Center-radial pores Rigid nanoparticles Integrated nanocomposites
DOI10.1016/j.jallcom.2019.152641
Language英语
WOS KeywordMESOPOROUS SILICA NANOPARTICLES ; GOLD NANOPARTICLES ; FIBROUS NANOSILICA ; DRUG-DELIVERY ; CATALYSIS ; SHELL ; ADSORPTION ; PARTICLES ; PLATFORM ; RELEASE
Funding ProjectFundamental 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 Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationFundamental 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
WOS IDWOS:000502521900174
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38485
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Yabin; Li, Xiaoyu; Du, Xin
Affiliation1.Univ Sci & Technol Beijing, Res Ctr Bioengn & Sensing Technol, Dept Chem & Biol Engn, Beijing Key Lab Bioengn & Sensing Technol, Beijing 100083, Peoples R China
2.Yanan Univ, Coll Chem & Chem Engn, Shaanxi Key Lab Chem React Engn, Yanan 716000, Shaanxi, 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
Recommended Citation
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.
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