兰州大学机构库 >化学化工学院
Gold nanoparticles self-assemble on the thiol-functionalized fibrous silica microspheres to produce a robust catalyst
Meng, Jianqi1; Ma, Haojie2; Shu, Junhao1; Li, Ruxia1; Jin, Ruifa3; Li, SW(李树文)1; Yang, HL(杨洪蕾)1
2023-03-01
Source PublicationJOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   Impact Factor & Quartile
ISSN0022-3697
Volume174
AbstractA new type of catalyst based on thiol-functionalized fibrous nano-silica material (DFNS-SH) with unique fibrous structure as support and gold nanoparticles (Au NPs) as active sites (DFNS-SH/Au) has been prepared through a facile and environment-friendly self-assembly approach. The synthetic procedure involves the Au NPs prepared in mild conditions instantaneously self-assembled onto the DFNS-SH. The as-synthesized catalyst exhibits a remarkable higher catalytic activity in the reduction of 4-nitrophenol compared with other recently reported related catalysts. Furthermore, DFNS-SH/Au has an outstanding recyclability, after repeated use for many times, obvious activity loss did not occur until the eleventh time. The excellent catalytic activity and robust recyclability are attributed to the synergistic effect between the DFNS-SH and Au NPs. Numerous nano-fibers appear on DFNS-SH, which effectively enhance the mass diffusion and transport in catalytic reactions. Additionally, the enough strong interaction between the Au NPs and thiol groups onto the surface of DFNS can efficiently protect the Au NPs from aggregation and also endow the DFNS-SH/Au with enhanced stability. Thiol groups are also beneficial for improving the Au loading, decreasing the NPs size, reducing their aggregation and improving the catalytic performance of Au NPs anchored on the DFNS-SH as much as possible. This synthetic method discovers an eco-friendly path to effectively prepare low-budget Au-based catalysts and is promising for the development of other excellent materials. © 2022 Elsevier Ltd
KeywordAgglomeration Budget control Catalysis Catalyst activity Fiber optic sensors Metal nanoparticles Microspheres Nanofibers Self assembly Silica % reductions 4-Nitrophenol Au nanoparticle Functionalized Gold nanoparticle Reduction of 4-nitrophenol Reusable catalysts Silica microspheres Thiol-functionalized fibrous silicum microsphere ]+ catalyst
PublisherElsevier Ltd
DOI10.1016/j.jpcs.2022.111190
Indexed ByEI
Language英语
EI Accession Number20225213290318
EI KeywordsGold nanoparticles
EI Classification Number741.1.2 Fiber Optics ; 761 Nanotechnology ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 933 Solid State Physics ; 951 Materials Science
Original Document TypeJournal article (JA)
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/500486
Collection化学化工学院
Corresponding AuthorYang, Honglei
Affiliation
1.State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou; 730000, China;
2.Key Laboratory of New Energy & New Functional Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Shaanxi, Yan'an; 716000, China;
3.Inner Mongolia Key Laboratory of Photoelectric Functional Materials, College of Chemistry and Life Sciences, Chifeng University, Chifeng; 024000, China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Meng, Jianqi,Ma, Haojie,Shu, Junhao,et al. Gold nanoparticles self-assemble on the thiol-functionalized fibrous silica microspheres to produce a robust catalyst[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2023,174.
APA Meng, Jianqi.,Ma, Haojie.,Shu, Junhao.,Li, Ruxia.,Jin, Ruifa.,...&Yang, Honglei.(2023).Gold nanoparticles self-assemble on the thiol-functionalized fibrous silica microspheres to produce a robust catalyst.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,174.
MLA Meng, Jianqi,et al."Gold nanoparticles self-assemble on the thiol-functionalized fibrous silica microspheres to produce a robust catalyst".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 174(2023).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Meng, Jianqi]'s Articles
[Ma, Haojie]'s Articles
[Shu, Junhao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Meng, Jianqi]'s Articles
[Ma, Haojie]'s Articles
[Shu, Junhao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Meng, Jianqi]'s Articles
[Ma, Haojie]'s Articles
[Shu, Junhao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.