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Wang Y, He H, Sun J, Zhang X, Zulpya M, Zheng X, Xu L, Dong B. In situ infrared CO detection using silver loaded EMT zeolite films. NANOSCALE ADVANCES 2023; 5:3934-3941. [PMID: 37496618 PMCID: PMC10367965 DOI: 10.1039/d3na00238a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 06/05/2023] [Indexed: 07/28/2023]
Abstract
Ag cluster catalyst-based oxidation of CO to CO2 is an important way to remove CO at low temperatures. However, the instability of silver clusters seriously limits the catalytic application. Herein, sub-nanosized EMT zeolite nanoparticles served as Ag cluster carriers with high selectivity, low coordination, and unsaturated atom active sites. The silver clusters with sub-nanometer size can be controlled with different charge states and loading rates. A detection film with 500 nm was further prepared by assembling the Ag-EMT composites with a small amount of Nalco as an adhesive. For CO detection, a completely enclosed gas sensing device based on in situ infrared spectroscopy was employed without air interference. CO was accurately introduced into the detection chamber and catalysed into CO2 by silver loaded EMT zeolite films, and the whole process was accurately recorded by infrared spectroscopy. CO with a detection range of 2-50 ppm was realized, showing great application potential in gas monitoring.
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Affiliation(s)
- Yuda Wang
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Haitao He
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Jiao Sun
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Xinyao Zhang
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Mahmut Zulpya
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Xianhong Zheng
- Department of Cell Biology, College of Basic Medical Science, Jilin University China
| | - Lin Xu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University China
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Huang Z, Cao S, Yu J, Tang X, Guo Y, Guo Y, Wang L, Dai S, Zhan W. Total Oxidation of Light Alkane over Phosphate-Modified Pt/CeO 2 Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9661-9671. [PMID: 35695747 DOI: 10.1021/acs.est.2c00135] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing efficient catalysts for the total oxidation of light alkane at low temperatures is challenging. In this study, superior catalytic performance in the total oxidation of light alkane was achieved by modulating the acidity and redox property of a Pt/CeO2 catalyst through phosphorus modification. Surface modification with phosphorus resulted in electron withdrawal from Pt, leading to platinum species with high valency and the generation of Brönsted acid sites, leading to increased acidity of the Pt/CeO2 catalyst. Consequently, the ability of the Pt/CeO2 catalyst to activate the C-H bond increased with increasing P content in the catalyst owing to the synergistic effect of Ptδ+-(CeO2-POx)δ- dipolar catalytic sites. In contrast, the redox property of the Pt/CeO2 catalyst weakened at first; subsequently, it was partially restored owing to the recovery of a part of the bare ceria surface with increasing P content. The turnover frequency in propane oxidation over the phosphate-modified Pt/CeO2 catalyst with a P/Ce atomic ratio of 0.06 was 10-fold higher than that over the unmodified Pt/CeO2 catalyst at 220 °C. This comprehensive study not only sheds light on the mechanism underlying the surface modification process but also offers a strategy for realizing higher catalytic activity in the total oxidation of light alkanes.
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Affiliation(s)
- Zhenpeng Huang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Shiying Cao
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jihang Yu
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Centre, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yanglong Guo
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yun Guo
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Li Wang
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Centre, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, PR China
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials and Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai 200237, PR China
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Dai Q, Zhang Z, Yan J, Wu J, Johnson G, Sun W, Wang X, Zhang S, Zhan W. Phosphate-Functionalized CeO 2 Nanosheets for Efficient Catalytic Oxidation of Dichloromethane. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13430-13437. [PMID: 30372062 DOI: 10.1021/acs.est.8b05002] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tuning the nature and profile of acidic and basic sites on the surface of redox-active metal oxide nanostructures is a promising approach to constructing efficient catalysts for the oxidative removal of chlorinated volatile organic compounds (CVOCs). Herein, using dichloromethane (DCM) oxidation as a model reaction, we report that phosphate (PO x) Brønsted acid sites can be incorporated onto a CeO2 nanosheet (NS) surface via an organophosphate-mediated route, which can effectively enhance the CeO2's catalytic performance by promoting the removal of chlorine poisoning species. From the systematic study of the correlation between PO x composition, surface structure (acid and basic sites), and catalytic properties, we find that the incorporated Brønsted acid sites can also function to decrease the amount of medium-strong basic sites (O2-), reducing the formation of chlorinated organic byproduct monochloromethane (MCM) and leading to the desirable product, HCl. At the optimized P/Ce ratio (0.2), the PO x-CeO2 NSs can perform a stable DCM conversion of 65-70% for over 10 h at 250 °C and over 95% conversion at 300 °C, superior to both pristine and other phosphate-modified CeO2 NSs. Our work clearly identifies the critical role of acid and basic sites over functionalized CeO2 for efficient catalytic CVOCs oxidation, guiding future advanced catalyst design for environmental remediation.
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Affiliation(s)
- Qiguang Dai
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
| | - Zhiyong Zhang
- Department of Chemistry , University of Virginia , Charlottesville , Virginia 22904 , United States
| | - Jiaorong Yan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
| | - Jinyan Wu
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
| | - Grayson Johnson
- Department of Chemistry , University of Virginia , Charlottesville , Virginia 22904 , United States
| | - Wei Sun
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
| | - Xingyi Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
| | - Sen Zhang
- Department of Chemistry , University of Virginia , Charlottesville , Virginia 22904 , United States
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering , East China University of Science & Technology , Shanghai 200237 , P. R. China
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Lv Y, Tu R, Zhang C, Fan W, He Y, LEUNG MKH, Wang C. Phenyl Hypophosphorous Acid-Assisted Synthesis of Carbon-Modified Anatase-Brookite Bicrystal TiO 2
Nanoparticles with Enhanced Visible-Light Photocatalytic Performance. ChemistrySelect 2017. [DOI: 10.1002/slct.201700775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yingxia Lv
- State Key Laboratory of Materials-Oriented Chemical Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Rui Tu
- State Key Laboratory of Materials-Oriented Chemical Engineering; Nanjing Tech University; Nanjing 210009 China
| | - Chengxu Zhang
- Ability R&D Energy Research Centre; School Energy and Environment; City University of Hong Kong; Hong Kong China
| | - Wenguang Fan
- Ability R&D Energy Research Centre; School Energy and Environment; City University of Hong Kong; Hong Kong China
| | - Yun He
- Ability R&D Energy Research Centre; School Energy and Environment; City University of Hong Kong; Hong Kong China
| | - Michael K. H. LEUNG
- Ability R&D Energy Research Centre; School Energy and Environment; City University of Hong Kong; Hong Kong China
| | - Changsong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering; Nanjing Tech University; Nanjing 210009 China
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Feng J, Fan D, Wang Q, Ma L, Wei W, Xie J, Zhu J. Facile synthesis silver nanoparticles on different xerogel supports as highly efficient catalysts for the reduction of p-nitrophenol. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.041] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Synthesis and characterization of a phosphorus-doped TiO2 immobilized bed for the photodegradation of bisphenol A under UV and sunlight irradiation. REACTION KINETICS MECHANISMS AND CATALYSIS 2014. [DOI: 10.1007/s11144-014-0783-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kou T, Li D, Zhang C, Zhang Z, Yang H. Unsupported nanoporous Ag catalysts towards CO oxidation. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2013.10.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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ZHANG X, QU Z, YU F, WANG Y. Progress in carbon monoxide oxidation over nanosized Ag catalysts. CHINESE JOURNAL OF CATALYSIS 2013. [DOI: 10.1016/s1872-2067(12)60610-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zhang X, Qu Z, Yu F, Wang Y, Zhang X. Effects of pretreatment atmosphere and silver loading on the structure and catalytic activity of Ag/SBA-15 catalysts. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.01.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang X, Qu Z, Yu F, Wang Y. High-temperature diffusion induced high activity of SBA-15 supported Ag particles for low temperature CO oxidation at room temperature. J Catal 2013. [DOI: 10.1016/j.jcat.2012.10.019] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Zhang X, Qu Z, Jia J, Wang Y. Ag nanoparticles supported on wormhole HMS material as catalysts for CO oxidation: Effects of preparation methods. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2012.07.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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