Knowledge Management System of Hefei Institute of Physical Science，CAS
| New insights into nanostructure/functionality-dependent catalysis of pollutants by arc-designing graphite-encapsulated silver nanoparticles | |
Wang, Tianhui1,2; Xiao, Jiang3; Yang, Xiaoli4; Zhao, Yonghui1,2; Hu, Rui1; Ding, Jianjun1; Gong, Yi1; Tian, Xingyou1
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| 2022-02-15 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
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| ISSN | 1385-8947 |
| Corresponding Author | Hu, Rui(ruihu@rntek.cas.cn) |
| Abstract | Encapsulation of plasmonic nanoparticles in nanoshells is a promising strategy to overcome their oxidationcoalescence in the heterogeneous catalysis process. Tailoring of nanostructure/functionality to enable the efficient synergistic integration of core and shell is highly desired to enhance the plasmonic catalysis. This study applied a one-step arc discharge to design graphite-encapsulated silver (Ag@G) catalysts with tunable morphologies (14.3-46.9 nm of cores, 1.38-3.43 nm of shells) and surface functionalities (hydrophobization, or amination with maximum 2.70 x 1017/mg of Ag@G). Highly nanostructure/functionality-dependent catalysis of aquatic pollutants was established. Specifically, tailoring defective shells with thinner thickness enabled the efficient synergism of strong 7C-7C coordination of 4-nitrophenol and effective electron transfer of donors. Aminated Ag@G with ultrathin shells presented an optimal reduction for Cr(VI), establishing a negative relation of thickness with formic acid-induced reduction. Amino with proper densities (9.6-20.9/nm2) induced the capture of Cr(VI) ultrafast. Moreover, reductive N heteroatoms with proper densities (e.g., 27.7 of N/nm2) provided abundant lone pair electrons without the dramatic decline of conductivity, ensuring a favorable reduction of Cr (VI). Since arc discharge was versatile for the industrial production of nanomaterials, our work would trigger a new upsurge to arc-design nanostructures/functionalities for the catalysis and decontamination. |
| Keyword | Arc nanosynthesis Nanostructure tailoring Surface amination Catalysis reduction Efficient adsorption Synergistic integration |
| DOI | 10.1016/j.cej.2021.132774 |
| WOS Keyword | CORE-SHELL NANOPARTICLES ; AG NANOPARTICLES ; LASER-ABLATION ; METAL ; REDUCTION ; DEGRADATION ; TRANSITION ; PARTICLES ; EVOLUTION ; THICKNESS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[21875257] |
| Funding Organization | National Natural Science Foundation of China |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:000729469100001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.hfcas.ac.cn:8080/handle/334002/126445 |
| Collection | 中国科学院合肥物质科学研究院 |
| Corresponding Author | Hu, Rui |
| Affiliation | 1.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China 4.North China Univ Water Resources & Elect Power, Sch Environm & Municipal Engn, Zhengzhou 450045, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Tianhui,Xiao, Jiang,Yang, Xiaoli,et al. New insights into nanostructure/functionality-dependent catalysis of pollutants by arc-designing graphite-encapsulated silver nanoparticles[J]. CHEMICAL ENGINEERING JOURNAL,2022,430. |
| APA | Wang, Tianhui.,Xiao, Jiang.,Yang, Xiaoli.,Zhao, Yonghui.,Hu, Rui.,...&Tian, Xingyou.(2022).New insights into nanostructure/functionality-dependent catalysis of pollutants by arc-designing graphite-encapsulated silver nanoparticles.CHEMICAL ENGINEERING JOURNAL,430. |
| MLA | Wang, Tianhui,et al."New insights into nanostructure/functionality-dependent catalysis of pollutants by arc-designing graphite-encapsulated silver nanoparticles".CHEMICAL ENGINEERING JOURNAL 430(2022). |
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