1
|
Jiang P, Zhang L, Liu X, Ye C, Zhu P, Tan T, Wang D, Wang Y. Tuning oxidant and antioxidant activities of ceria by anchoring copper single-site for antibacterial application. Nat Commun 2024; 15:1010. [PMID: 38307902 PMCID: PMC10837451 DOI: 10.1038/s41467-024-45255-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024] Open
Abstract
The reaction system of hydrogen peroxide (H2O2) catalyzed by nanozyme has a broad prospect in antibacterial treatment. However, the complex catalytic activities of nanozymes lead to multiple pathways reacting in parallel, causing uncertain antibacterial results. New approach to effectively regulate the multiple catalytic activities of nanozyme is in urgent need. Herein, Cu single site is modified on nanoceria with various catalytic activities, such as peroxidase-like activity (POD) and hydroxyl radical antioxidant capacity (HORAC). Benefiting from the interaction between coordinated Cu and CeO2 substrate, POD is enhanced while HORAC is inhibited, which is further confirmed by density functional theory (DFT) calculations. Cu-CeO2 + H2O2 system shows good antibacterial properties both in vitro and in vivo. In this work, the strategy based on the interaction between coordinated metal and carrier provides a general clue for optimizing the complex activities of nanozymes.
Collapse
Affiliation(s)
- Peng Jiang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ludan Zhang
- Center of Digital Dentistry/Department of Prosthodontics, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, NHC Research Center of Engineering and Technology for Computerized Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Xiaolong Liu
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, China
| | - Chenliang Ye
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Peng Zhu
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Ting Tan
- Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China.
| | - Yuguang Wang
- Center of Digital Dentistry/Department of Prosthodontics, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, NHC Research Center of Engineering and Technology for Computerized Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China.
| |
Collapse
|
2
|
Li Z, Zhang Y, Jiang Q, Xu L, Han ZK, Baiker A, Li G. CuCeO x/CuO Catalyst Derived from the Layered Double Hydroxide Precursor: Catalytic Performance in NO Reduction with CO in the Presence of Water and Oxygen. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6957-6963. [PMID: 37162390 DOI: 10.1021/acs.langmuir.2c03258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Valencies of metal species and lattice defects, such as oxygen vacancies, play a pivotal role in metal oxide-catalyzed reactions. Herein, we report a promising synthetic strategy for preparing CuO-supported CuCeOx catalysts (CuCeOx/CuO) by calcination of a hydrotalcite precursor [Cu6Ce2(OH)16]CO3·nH2O. The structural and chemical properties of catalysts were characterized by XRD, ICP-AES, TEM, TPR, NH3-TPD, XPS, Raman spectroscopy, and N2 adsorption, which revealed that the thermal pretreatment in an oxidative atmosphere caused segregation and reconstitution processes of the precursor, resulting in a mesoporous catalyst consisting of well-dispersed CuO-supported CuCeOx clusters of 1.8-3.2 nm in size with a high population of oxygen vacancies. The as-prepared catalyst shows excellent catalytic performance in the reduction of NO by CO in the absence as well as in the presence of water and oxygen. This behavior is attributed to its high oxygen defect concentration facilitating the interplay of the redox equilibria between Cu2+ and reduced copper species (Cu+/Cu0) and (Ce4+/Ce3+). The high surface population of oxygen vacancies and in situ-generated metallic copper species have been evidenced by Raman spectroscopy and X-ray photoelectron spectroscopy. The layered double hydroxide-derived CuCeOx/CuO also showed good water tolerance and long-term stability. In situ infrared spectroscopy investigations indicated that adsorbed hyponitrite species are the main reaction intermediates of the NO conversion as also corroborated by theoretical simulations.
Collapse
Affiliation(s)
- Zhiwen Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, CAS, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yifei Zhang
- College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China
| | - Qike Jiang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, CAS, Dalian 116023, China
| | - Liangliang Xu
- Electrical and Biomedical Engineering Multidisciplinary Computational Laboratory, Hanyang University Ringgold Standard Institution, Seoul 04763, Republic of Korea
| | - Zhong-Kang Han
- School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Alfons Baiker
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Hönggerberg, HCl, CH-8093 Zurich, Switzerland
| | - Gao Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, CAS, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| |
Collapse
|
3
|
Investigation of Cu-doped ceria through a combined spectroscopic approach: involvement of different catalytic sites in CO oxidation. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
|
4
|
Wang Y, Zhang Y, Jiang Q, Guo S, Baiker A, Li G. Ternary CuCrCeOx Solid Solution Enhances N2‐Selectivity in the NO Reduction with CO in the Presence of Water and Oxygen. ChemCatChem 2022. [DOI: 10.1002/cctc.202200203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuhang Wang
- Shenyang Normal University Institute of Catalysis for Energy and Environment CHINA
| | - Yifei Zhang
- Shenyang Normal University Institute of Catalysis for Energy and Environment 110034 Shenyang CHINA
| | - Qike Jiang
- Dalian Institute of Chemical Physics State Key Laboratory of Catalysis State Key Laboratory of Catalysis CHINA
| | - Song Guo
- Dalian Institute of Chemical Physics State Key Laboratory of Catalysis State Key Laboratory of Catalysis CHINA
| | - Alfons Baiker
- ETH Zurich: Eidgenossische Technische Hochschule Zurich Department of Chemistry and Applied Biosciences Wolfgang Pauli Strasse 12 CH-8093 Zürich SWITZERLAND
| | - Gao Li
- Dalian Institute of Chemical Physics State Key Laboratory of Catalysis State Key Laboratory of Catalysis CHINA
| |
Collapse
|
5
|
Kerkar RD, Salker AV. The low-temperature simultaneous detoxification of NO and CO over precious metal-free nanocomposite metal oxides. NEW J CHEM 2022. [DOI: 10.1039/d2nj00771a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The high performance of a Co–Cu–Mn catalyst for NO–CO redox conversion was demonstrated, which is attributed to the formation of CuO species that interact with one another to produce high synergy in the Co–Cu–Mn oxide system.
Collapse
Affiliation(s)
- R. D. Kerkar
- School of Chemical Sciences, Goa University, Taligao-Plateau, Panaji-Goa 403206
- Government College of Art Science and Commerce, Sanquelim-Goa
| | - A. V. Salker
- School of Chemical Sciences, Goa University, Taligao-Plateau, Panaji-Goa 403206
| |
Collapse
|
6
|
Abstract
We review the solution-based synthesis routes to cerium oxide materials where one or more elements are included in place of a proportion of the cerium, i.e., substitution of cerium is performed. The focus is on the solvothermal method, where reagents are heated above the boiling point of the solvent to induce crystallisation directly from the solution. This yields unusual compositions with crystal morphology often on the nanoscale. Chemical elements from all parts of the periodic table are considered, from transition metals to main group elements and the rare earths, including isovalent and aliovalent cations, and surveyed using the literature published in the past ten years. We illustrate the versatility of this synthesis method to allow the formation of functional materials with applications in contemporary applications such as heterogeneous catalysis, electrodes for solid oxide fuel cells, photocatalysis, luminescence and biomedicine. We pick out emerging trends towards control of crystal habit by use of non-aqueous solvents and solution additives and identify challenges still remaining, including in detailed structural characterisation, the understanding of crystallisation mechanisms and the scale-up of synthesis.
Collapse
|