1
|
Hao B, Lu G, Zhang S, Li Y, Ding A, Huang X. Gold nanoparticles standing on PEG/PAMAM/thiol-functionalized nanographene oxide as aqueous catalysts. Polym Chem 2020. [DOI: 10.1039/d0py00471e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Gold nanoparticles were aptly in situ grown on PEG/PAMAM/thiol-functionalized nanographene oxide platforms for aqueous catalysis.
Collapse
Affiliation(s)
- Bingjie Hao
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Sen Zhang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Yongjun Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Aishun Ding
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
| |
Collapse
|
2
|
Yang M, Shi X. Biosynthesis of Ag 2S/TiO 2 nanotubes nanocomposites by Shewanella oneidensis MR-1 for the catalytic degradation of 4-nitrophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:12237-12246. [PMID: 30835063 DOI: 10.1007/s11356-019-04462-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 02/03/2019] [Indexed: 06/09/2023]
Abstract
Biosynthesized nanocomposites are attracting growing interests because they are environmentally friendly. Ag2S nanoparticles (Ag2S NPs) are deposited in situ on the surfaces of TiO2 nanotubes (TNTs) via Shewanella oneidensis MR-1 to form Ag2S/TNT nanocomposites. The prepared Ag2S/TNTs nanocomposites are characterized using high-resolution transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and energy-dispersive X-ray spectroscopy. The results show that Ag2S NPs smaller than 8 nm are successfully synthesized and fabricated on the TNT surfaces with relatively uniform distribution. The catalytic performance of the Ag2S/TNT nanocomposites is evaluated for catalytic reduction in the presence of NaBH4 and the photocatalytic degradation of 4-nitrophenol (4-NP) under visible light. The Ag2S/TNT nanocomposites show excellent catalytic activity and good stability in the 4-NP reduction process. The 4-NP degradation ratio reaches 98.3% in 50 min, and 87% conversion was achieved after eight cycles. The Ag2S/TNT nanocomposites also exhibit excellent photocatalytic activity for 4-NP at a rate of 0.69 h-1, and the complete degradation of 4-NP was observed within 5 h. Therefore, this study offers an environmentally friendly approach to synthesize nanocomposites for practical applications.
Collapse
Affiliation(s)
- Mi Yang
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Xianyang Shi
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China.
| |
Collapse
|
3
|
Lopa NS, Rahman MM, Ahmed F, Ryu T, Sutradhar SC, Lei J, Kim J, Kim DH, Lee YH, Kim W. Simple, low-cost, sensitive and label-free aptasensor for the detection of cardiac troponin I based on a gold nanoparticles modified titanium foil. Biosens Bioelectron 2018; 126:381-388. [PMID: 30469076 DOI: 10.1016/j.bios.2018.11.012] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/26/2018] [Accepted: 11/10/2018] [Indexed: 01/17/2023]
Abstract
This research demonstrated the electrochemical modification of low-cost titanium (Ti) metal substrate with gold nanoparticles (AuNPs) for the aptamer-based detection of cardiac troponin I (cTnI). AuNPs were deposited onto Ti sheets by the potential-step deposition method with high density and homogeneity as well as good crystallinity. It was then applied as a transducer to immobilize a thiol-functionalized DNA aptamer via the self-assembled monolayer mechanism for the specific binding of cTnI. This was verified through electrochemical and morphological analyses. The aptasensor could detect cTnI in a linear range of 1-1100 pM with a detection limit of ca. 0.18 pM. The aptasensor showed high sensitivity and specificity to cTnI over other interfering compounds with good recoveries in the diluted human serum samples.
Collapse
Affiliation(s)
- Nasrin Siraj Lopa
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Md Mahbubur Rahman
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea.
| | - Faiz Ahmed
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Taewook Ryu
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | | | - Jin Lei
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Jaewoong Kim
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Dae Ho Kim
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Yong Hoon Lee
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea
| | - Whangi Kim
- Department of Energy and Materials, Konkuk University, Chungju 27478, Republic of Korea.
| |
Collapse
|
4
|
Zhu XY, Lv ZS, Feng JJ, Yuan PX, Zhang L, Chen JR, Wang AJ. Controlled fabrication of well-dispersed AgPd nanoclusters supported on reduced graphene oxide with highly enhanced catalytic properties towards 4-nitrophenol reduction. J Colloid Interface Sci 2018; 516:355-363. [DOI: 10.1016/j.jcis.2018.01.047] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/12/2018] [Accepted: 01/12/2018] [Indexed: 11/26/2022]
|
5
|
Zhang Q, Fan X, Wang H, Chen S, Quan X. Fabrication of Au/CNT hollow fiber membrane for 4-nitrophenol reduction. RSC Adv 2016. [DOI: 10.1039/c6ra07705f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An Au/CNT hollow fiber membrane is synthesized for the reduction of 4-nitrophenol to 4-aminophenol.
Collapse
Affiliation(s)
- Qi Zhang
- Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province
- School of Fisheries and Life Science
- Dalian Ocean University
- Dalian 116023
- China
| | - Xinfei Fan
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Hua Wang
- Engineering Research Center of Shellfish Culture and Breeding in Liaoning Province
- School of Fisheries and Life Science
- Dalian Ocean University
- Dalian 116023
- China
| | - Shuo Chen
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| | - Xie Quan
- Faculty of Chemical
- Environmental and Biological Science and Technology
- Dalian University of Technology
- Dalian 116024
- China
| |
Collapse
|
6
|
A facile approach to prepare hybrid nanoparticles with morphology controlled by the thickness of glyco-shell. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.05.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
7
|
Palladium nanostructures: Solvent-less, one-pot mechano-chemical synthesis using poly(vinylpyrolidone) and catalytic activity. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
8
|
Premkumar T, Geckeler KE. Facile synthesis of silver nanoparticles using unmodified cyclodextrin and their surface-enhanced Raman scattering activity. NEW J CHEM 2014. [DOI: 10.1039/c3nj01375h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
9
|
Li J, Zhu J, Liu X. Ultrafine silver nanoparticles obtained from ethylene glycol at room temperature: catalyzed by tungstate ions. Dalton Trans 2014; 43:132-7. [DOI: 10.1039/c3dt52242c] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
10
|
Hu HW, Xin JH, Hu H. Highly Efficient Graphene-Based Ternary Composite Catalyst with Polydopamine Layer and Copper Nanoparticles. Chempluschem 2013; 78:1483-1490. [DOI: 10.1002/cplu.201300124] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 07/24/2013] [Indexed: 11/08/2022]
|
11
|
Wu T, Ma J, Wang X, Liu Y, Xu H, Gao J, Wang W, Liu Y, Yan J. Graphene oxide supported Au-Ag alloy nanoparticles with different shapes and their high catalytic activities. NANOTECHNOLOGY 2013; 24:125301. [PMID: 23459126 DOI: 10.1088/0957-4484/24/12/125301] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A simple method was developed to fabricate Au-Ag nanoparticle/graphene oxide nanocomposites (Au-Ag/GO) by using simultaneous redox reactions between AgNO3, HAuCl4 and GO. The Au-Ag/GO was characterized by x-ray photoelectron spectroscopy, transmission electron microscopy and energy dispersive x-ray spectroscopy. The GO nanosheets acted as the reducing agent and the support for the Au-Ag alloy nanoparticles. In addition, Au-Ag alloy nanoparticles with different shapes including core-shell-like, dendrimer-like and flower-like were obtained by simply modifying the concentration of the reactants and the reaction temperature. With no reducing or stabilizing agents added, the Au-Ag/GO nanocomposites show superior catalytic performance for the reduction of 4-nitrophenol and for the aerobic homocoupling of phenylboronic acid.
Collapse
Affiliation(s)
- Tao Wu
- School of Science, Tianjin University, Tianjin, 300072, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Ren Z, Kim E, Pattinson SW, Subrahmanyam KS, Rao CNR, Cheetham AK, Eder D. Hybridizing photoactive zeolites with graphene: a powerful strategy towards superior photocatalytic properties. Chem Sci 2012. [DOI: 10.1039/c1sc00511a] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|
13
|
Chi Y, Zhao L, Yuan Q, Yan X, Li Y, Li N, Li X. In situ auto-reduction of silver nanoparticles in mesoporous carbon with multifunctionalized surfaces. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31854g] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
Li J, Liu CY, Liu Y. Au/graphene hydrogel: synthesis, characterization and its use for catalytic reduction of 4-nitrophenol. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16386a] [Citation(s) in RCA: 753] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
15
|
Zhang P, Shao C, Zhang Z, Zhang M, Mu J, Guo Z, Liu Y. In situ assembly of well-dispersed Ag nanoparticles (AgNPs) on electrospun carbon nanofibers (CNFs) for catalytic reduction of 4-nitrophenol. NANOSCALE 2011; 3:3357-63. [PMID: 21761072 DOI: 10.1039/c1nr10405e] [Citation(s) in RCA: 332] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Carbon nanofibers/silver nanoparticles (CNFs/AgNPs) composite nanofibers were fabricated by two steps consisting of the preparation of the CNFs by electrospinning and the hydrothermal growth of the AgNPs on the CNFs. The as-prepared nanofibers were characterized by scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, resonant Raman spectra, thermal gravimetric and differential thermal analysis, and X-ray photoelectron spectroscopy, respectively. The results indicated that not only were AgNPs (25-50 nm) successfully grown on the CNFs but also the AgNPs were distributed without aggregation on the CNFs. Further more, by adjusting the parameters in hydrothermal processing, the content of silver supported on the CNFs could be easily controlled. The catalytic activities of the CNFs/AgNPs composite nanofibers to the reduction of 4-nitrophenol (4-NP) with NaBH(4) were tracked by UV-visible spectroscopy. It was suggested that the CNFs/AgNPs composite nanofibers exhibited high catalytic activity in the reduction of 4-NP, which might be attributed to the high surface areas of AgNPs and synergistic effect on delivery of electrons between CNFs and AgNPs. And, the catalytic efficiency was enhanced with the increasing of the content of silver on the CNFs/AgNPs composite nanofibers. Notably, the CNFs/AgNPs composite nanofibers could be easily recycled due to their one-dimensional nanostructural property.
Collapse
Affiliation(s)
- Peng Zhang
- Center for Advanced Optoelectronic Functional Materials Research, Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|