1
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Li Z, Huang Y, Li H, Zhang F, Ren Y, Shi W, Liu Q, Wang X. Single-Walled Cluster Nanotubes for Single-Atom Catalysts with Precise Structures. J Am Chem Soc 2024; 146:450-459. [PMID: 38151238 DOI: 10.1021/jacs.3c09752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Spatially confining isolated atomic sites in low-dimensional nanostructures is a promising strategy for preparing high-performance single-atom catalysts (SACs). Herein, fascinating polyoxometalate cluster-based single-walled nanotubes (POM-SWNTs) with atomically precise structures, uniform diameter, and single-cluster wall thickness are constructed by lacunary POM clusters (PW11 and P2W17 clusters). Isolated metal centers are accurately incorporated into the PW11-SWNTs and P2W17-SWNTs supports. The structures of the resulting MPW11-SWNTs and MP2W17-SWNTs are well established (M = Cu, Pt). Molecular dynamics simulations demonstrate the stability of POM-SWNTs. Furthermore, the turnover frequency of PtP2W17-SWNTs is 20 times higher than that of PtP2W17 cluster units and 140 times higher than that of Pt nanoparticles in the alcoholysis of dimethylphenylsilane. Theoretical studies indicate that incorporating a Pt atom into the P2W17 support induces straightforward electron transfer between them, combining the nanoconfined environment to enhance the catalytic activity of PtP2W17-SWNTs. This work shows the feasibility of using subnanometric POM clusters to assemble single-walled cluster nanotubes, highlighting their potential to prepare superior SACs with precise structures.
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Affiliation(s)
- Zhong Li
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yunwei Huang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haoyang Li
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fenghua Zhang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yazhou Ren
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wenxiong Shi
- Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Qingda Liu
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xun Wang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
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2
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Zhu J, Ma J, Liu L, Zhang S, Zhao L, Jin H, Zhang K. Carbon supported "core-shell structure" of Fe nanoparticles for enhanced Fenton reaction activity and magnetic separation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:7207-7217. [PMID: 36031677 DOI: 10.1007/s11356-022-22754-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Effectively facilitating Fe3+/Fe2+ cycles and expanding its operating pH range are keys to optimizing the traditional Fenton reaction. In this exploration, we used chitosan and ferrous sulfate as precursors to prepare a multicomponent magnetic Fe/C Fenton-like catalyst, which exhibited extraordinary catalytic properties and excellent stability performance in a pH range of 4~8. Besides, it could be easily separated from the solution by a magnet. The characterization showed that the supported Fe species include troilite-2H (FeS), lepidocrocite (FeOOH), and pyrrhotite-6T (Fe1 - xS) with a unique "core-shell structure." The presence of reductive iron sulfide core in the system can accelerate the reduction of Fe(III). Meanwhile, the graphite-like structure formed after calcination can adsorb and enrich priority pollutants near the active site through π-π coupling and strengthen electron transfer, which endows its high catalytic performance and enables it invulnerable to dissolved organic compounds.
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Affiliation(s)
- Jiahao Zhu
- College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China
- School of Civil Engineering and Architecture, NingboTech University, Ningbo, 315100, China
| | - Jianqing Ma
- School of Civil Engineering and Architecture, NingboTech University, Ningbo, 315100, China.
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China.
| | - Liang Liu
- Blue City Ecological Co., Ltd., Ningbo, 315100, China
| | - Shali Zhang
- School of Civil Engineering and Architecture, NingboTech University, Ningbo, 315100, China
| | - Liaoyuan Zhao
- Blue City Ecological Co., Ltd., Ningbo, 315100, China
| | - Huixia Jin
- School of Civil Engineering and Architecture, NingboTech University, Ningbo, 315100, China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China
| | - Kefeng Zhang
- School of Civil Engineering and Architecture, NingboTech University, Ningbo, 315100, China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, China
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3
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Rivero-Crespo M, Oliver-Meseguer J, Kapłońska K, Kuśtrowski P, Pardo E, Cerón-Carrasco JP, Leyva-Pérez A. Cyclic metal(oid) clusters control platinum-catalysed hydrosilylation reactions: from soluble to zeolite and MOF catalysts. Chem Sci 2020; 11:8113-8124. [PMID: 34123084 PMCID: PMC8163423 DOI: 10.1039/d0sc02391d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/05/2020] [Indexed: 12/19/2022] Open
Abstract
The Pt-catalysed addition of silanes to functional groups such as alkenes, alkynes, carbonyls and alcohols, i.e. the hydrosilylation reaction, is a fundamental transformation in industrial and academic chemistry, often claimed as the most important application of Pt catalysts in solution. However, the exact nature of the Pt active species and its mechanism of action is not well understood yet, particularly regarding regioselectivity. Here, experimental and computational studies together with an ad hoc graphical method show that the hydroaddition of alkynes proceeds through Pt-Si-H clusters of 3-5 atoms (metal(oid) association) in parts per million amounts (ppm), which decrease the energy of the transition state and direct the regioselectivity of the reaction. Based on these findings, new extremely-active (ppm) microporous solid catalysts for the hydrosilylation of alkynes, alkenes and alcohols have been developed, paving the way for more environmentally-benign industrial applications.
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Affiliation(s)
- Miguel Rivero-Crespo
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avda. de los Naranjos s/n 46022 Valencia Spain +34963877809 +34963877800
| | - Judit Oliver-Meseguer
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avda. de los Naranjos s/n 46022 Valencia Spain +34963877809 +34963877800
| | - Klaudia Kapłońska
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Piotr Kuśtrowski
- Faculty of Chemistry, Jagiellonian University Gronostajowa 2 30-387 Krakow Poland
| | - Emilio Pardo
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia 46980 Paterna Valencia Spain
| | | | - Antonio Leyva-Pérez
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avda. de los Naranjos s/n 46022 Valencia Spain +34963877809 +34963877800
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4
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Asensio JM, Bouzouita D, van Leeuwen PWNM, Chaudret B. σ-H-H, σ-C-H, and σ-Si-H Bond Activation Catalyzed by Metal Nanoparticles. Chem Rev 2019; 120:1042-1084. [PMID: 31659903 DOI: 10.1021/acs.chemrev.9b00368] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Activation of H-H, Si-H, and C-H bonds through σ-bond coordination has grown in the past 30 years from a scientific curiosity to an important tool in the functionalization of hydrocarbons. Several mechanisms were discovered via which the initially σ-bonded substrate could be converted: oxidative addition, heterolytic cleavage, σ-bond metathesis, electrophilic attack, etc. The use of metal nanoparticles (NPs) in this area is a more recent development, but obviously nanoparticles offer a much richer basis than classical homogeneous and heterogeneous catalysts for tuning reactivity for such a demanding process as C-H functionalization. Here, we will review the surface chemistry of nanoparticles and catalytic reactions occurring in the liquid phase, catalyzed by either colloidal or supported metal NPs. We consider nanoparticles prepared in solution, which are stabilized and tuned by polymers, ligands, and supports. The question we have addressed concerns the differences and similarities between molecular complexes and metal NPs in their reactivity toward σ-bond activation and functionalization.
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Affiliation(s)
- Juan M Asensio
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Donia Bouzouita
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Piet W N M van Leeuwen
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Bruno Chaudret
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
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5
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Wu Y, Wang T, Wang H, Wang X, Dai X, Shi F. Active catalyst construction for CO 2 recycling via catalytic synthesis of N-doped carbon on supported Cu. Nat Commun 2019; 10:2599. [PMID: 31197203 PMCID: PMC6565717 DOI: 10.1038/s41467-019-10633-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/21/2019] [Indexed: 11/17/2022] Open
Abstract
Bridging homogeneous and heterogeneous catalysis is a long-term pursuit in the field of catalysis. Herein, we report our results in integration of nano- and molecular catalysis via catalytic synthesis of nitrogen doped carbon layers on AlOx supported nano-Cu which can finely tune the catalytic performance of the supported copper catalyst. This synthetic catalytic material, which can be generated in situ by the reaction of CuAlOx and 1,10-Phen in the presence of hydrogen, could be used for controllable synthesis of N,N-dimethylformamide (DMF) from dimethylamine and CO2/H2 via blocking reaction pathways of further catalytic hydrogenation of DMF to N(CH3)3. Detailed characterizations and DFT calculations reveal that the presence of N-doped layered carbon on the surface of the nano-Cu particles results in higher activation energy barriers during the conversion of DMF to N(CH3)3. Our primary results could promote merging of homogeneous catalysis and heterogeneous catalysis and CO2 recycling. Bridging homogeneous and heterogeneous catalysis is a long-term pursuit in the field of catalysis. Here, the authors present results on integration of nano- and molecular catalysis via catalytic synthesis of nitrogen doped carbon layers on AlOx supported nano-Cu which can finely tune the catalytic performance of the supported copper catalyst.
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Affiliation(s)
- Yajuan Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, 730000, Lanzhou, China.,University of Chinese Academy of Sciences, No. 19A, Yuquan Road, 100049, Beijing, China
| | - Tao Wang
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Hongli Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, 730000, Lanzhou, China
| | - Xinzhi Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, 730000, Lanzhou, China.,University of Chinese Academy of Sciences, No. 19A, Yuquan Road, 100049, Beijing, China
| | - Xingchao Dai
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, 730000, Lanzhou, China.,University of Chinese Academy of Sciences, No. 19A, Yuquan Road, 100049, Beijing, China
| | - Feng Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, 730000, Lanzhou, China.
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6
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Ghanbari Resketi F, Salehi S, Bahramian B, Mirzaee M. Immobilization of [MoO
2
(acac)
2
] on surface of hydroxyapatite nanoparticles: A heterogeneous and reusable catalyst for olefin epoxidation reactions. J PHYS ORG CHEM 2018. [DOI: 10.1002/poc.3921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Samie Salehi
- Department of Chemistry, Faculty of SciencesFerdowsi University of Mashhad Mashhad Iran
- Department of ChemistryUniversity of Mazandaran Babolsar Iran
| | - Bahram Bahramian
- Faculty of ChemistryShahrood University of Technology Shahrood Iran
| | - Mahdi Mirzaee
- Faculty of ChemistryShahrood University of Technology Shahrood Iran
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7
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Neary MC, Quinlivan PJ, Parkin G. Zerovalent Nickel Compounds Supported by 1,2-Bis(diphenylphosphino)benzene: Synthesis, Structures, and Catalytic Properties. Inorg Chem 2017; 57:374-391. [DOI: 10.1021/acs.inorgchem.7b02636] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Michelle C. Neary
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Patrick J. Quinlivan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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8
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Kaya U, Tran UPN, Enders D, Ho J, Nguyen TV. N-Heterocyclic Olefin Catalyzed Silylation and Hydrosilylation Reactions of Hydroxyl and Carbonyl Compounds. Org Lett 2017; 19:1398-1401. [DOI: 10.1021/acs.orglett.7b00306] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Uǧur Kaya
- School
of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Uyen P. N. Tran
- School
of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Dieter Enders
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Junming Ho
- Institute
of High
Performance Computing, Agency for Science Technology and Research, 1 Fusionopolis Way, #16-16
Connexis North, Singapore 138632
| | - Thanh V. Nguyen
- School
of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
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9
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Lin JD, Bi QY, Tao L, Jiang T, Liu YM, He HY, Cao Y, Wang YD. Wettability-Driven Palladium Catalysis for Enhanced Dehydrogenative Coupling of Organosilanes. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03233] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian-Dong Lin
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Qing-Yuan Bi
- State Key Laboratory of
High Performance Ceramics and Superfine Microstructures, Shanghai
Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
| | - Lei Tao
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Tao Jiang
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Yong-Mei Liu
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - He-Yong He
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Yong Cao
- Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, People’s Republic of China
| | - Yang-Dong Wang
- SINOPEC Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, People’s Republic of China
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10
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Wang C, Zhang Z, Yang G, Chen Q, Yin Y, Jin M. Creation of Controllable High-Density Defects in Silver Nanowires for Enhanced Catalytic Property. NANO LETTERS 2016; 16:5669-5674. [PMID: 27532689 DOI: 10.1021/acs.nanolett.6b02317] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Structural defects have been proven to determine many of the materials' properties. Here, we demonstrate a unique approach to the creation of Ag nanowires with high-density defects through controllable nanoparticles coalescence in one-dimensional pores of mesoporous silica. The density of defects can be easily adjusted by tuning the annealing temperature during synthetic process. The high-density defects promote the adsorption and activation of more reactants on the surface of Ag nanowires during catalytic reactions. As a result, the as-prepared Ag nanowires exhibit enhanced activities in catalyzing dehydrogenative coupling reaction of silane in terms of apparent activation energy and turnover frequency (TOF). We show further that the silane conversion rate can be enhanced by maximizing the defect density and thus the number of active sites on the Ag nanowires, reaching a remarkable TOF of 8288 h(-1), which represents the highest TOF that has been achieved by far on Ag catalysts. This work not only proves the important role of structural defects in catalysis but also provides a new and general strategy for constructing high-density defects in metal catalysts.
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Affiliation(s)
- Chaoqi Wang
- Frontier Institute of Science and Technology and School of Chemical Engineering and Technology, Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, China
| | - Zhaorui Zhang
- Frontier Institute of Science and Technology and School of Chemical Engineering and Technology, Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, China
| | - Guang Yang
- Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, China
| | - Qiang Chen
- Frontier Institute of Science and Technology and School of Chemical Engineering and Technology, Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, China
| | - Yadong Yin
- Department of Chemistry, University of California , Riverside, California 92521, United States
| | - Mingshang Jin
- Frontier Institute of Science and Technology and School of Chemical Engineering and Technology, Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University , Xi'an, Shaanxi 710049, China
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11
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Xue B, Qin M, Wu J, Luo D, Jiang Q, Li Y, Cao Y, Wang W. Electroresponsive Supramolecular Graphene Oxide Hydrogels for Active Bacteria Adsorption and Removal. ACS APPLIED MATERIALS & INTERFACES 2016; 8:15120-15127. [PMID: 27244345 DOI: 10.1021/acsami.6b04338] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bacteria contamination in drinking water and medical products can cause severe health problems. However, currently available sterilization methods, mainly based on the size-exclusion mechanism, are typically slow and require the entire contaminated water to pass through the filter. Here, we present an electroresponsive hydrogel based approach for bacteria adsorption and removal. We successfully engineered a series of graphene oxide hydrogels using redox-active ruthenium complexes as noncovalent cross-linkers. The resulting hydrogels can reversibly switch their physical properties in response to the applied electric field along with the changes of oxidation states of the ruthenium ions. The hydrogels display strong bacteria adsorbing capability. A hydrogel of 1 cm(3) can adsorb a maximum of 1 × 10(8) E. coli. The adsorbed bacteria in the hydrogels can then be inactivated by a high voltage electric pulse and removed from the hydrogels subsequently. Owing to the high bacteria removal rate, reusability, and low production cost, these hydrogels represent promising candidates for the emergent sterilization of medical products or large-scale purification of drinking water.
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Affiliation(s)
| | | | | | - Dongjun Luo
- Department of Hepatobiliary Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University , 321 Zhong Shan North Road, Nanjing, Jiangsu 210008, P.R. China
| | | | - Ying Li
- Jiangsu Engineering Technology Research Centre of Environmental Cleaning Materials, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology , 219 Ningliu Road, Nanjing, Jiangsu 210044, P.R. China
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12
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Frindy S, El Kadib A, Lahcini M, Primo A, García H. Isotropic and Oriented Copper Nanoparticles Supported on Graphene as Aniline Guanylation Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00995] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sana Frindy
- Instituto
de Tecnología Química (CSIC-UPV) and Departamento de
Química (UPV), Universitat Politècnica de València, Av.
de los Naranjos s/n, 46022 Valencia, Spain
- Laboratory
of Organometallic and Macromolecular Chemistry-Composites Materials,
Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue
Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Abdelkrim El Kadib
- Euromed
Research Institute, Engineering Division, Euro-Mediterranean University of Fes (UEMF), Fès-Shore, Route de Sidi Hrazem, 30070 Fès, Morocco
| | - Mohamed Lahcini
- Laboratory
of Organometallic and Macromolecular Chemistry-Composites Materials,
Faculty of Sciences and Technologies, Cadi Ayyad University, Avenue
Abdelkrim Elkhattabi, B.P. 549, 40000 Marrakech, Morocco
| | - Ana Primo
- Instituto
de Tecnología Química (CSIC-UPV) and Departamento de
Química (UPV), Universitat Politècnica de València, Av.
de los Naranjos s/n, 46022 Valencia, Spain
| | - Hermenegildo García
- Instituto
de Tecnología Química (CSIC-UPV) and Departamento de
Química (UPV), Universitat Politècnica de València, Av.
de los Naranjos s/n, 46022 Valencia, Spain
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13
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High catalytic activity of oriented 2.0.0 copper(I) oxide grown on graphene film. Nat Commun 2015; 6:8561. [PMID: 26509224 PMCID: PMC4634216 DOI: 10.1038/ncomms9561] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/04/2015] [Indexed: 11/09/2022] Open
Abstract
Metal oxide nanoparticles supported on graphene exhibit high catalytic activity for oxidation, reduction and coupling reactions. Here we show that pyrolysis at 900 °C under inert atmosphere of copper(II) nitrate embedded in chitosan films affords 1.1.1 facet-oriented copper nanoplatelets supported on few-layered graphene. Oriented (1.1.1) copper nanoplatelets on graphene undergo spontaneous oxidation to render oriented (2.0.0) copper(I) oxide nanoplatelets on few-layered graphene. These films containing oriented copper(I) oxide exhibit as catalyst turnover numbers that can be three orders of magnitude higher for the Ullmann-type coupling, dehydrogenative coupling of dimethylphenylsilane with n-butanol and C–N cross-coupling than those of analogous unoriented graphene-supported copper(I) oxide nanoplatelets. Supported metal nanoparticles have been widely used as heterogeneous catalysts. Here, the authors report the synthesis of (1.1.1) copper on few layer graphene which oxidize to orientated (2.0.0) copper(I) oxide nanoplatelets which display high catalytic activity for a number of organic coupling reactions.
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14
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Sattler W, Ruccolo S, Rostami Chaijan M, Nasr Allah T, Parkin G. Hydrosilylation of Aldehydes and Ketones Catalyzed by a Terminal Zinc Hydride Complex, [κ3-Tptm]ZnH. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00506] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Wesley Sattler
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Serge Ruccolo
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | | | - Tawfiq Nasr Allah
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department
of Chemistry, Columbia University, New York, New York 10027, United States
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