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Du J, Hu Y, Wan X, Tie S, Lan S, Gao X. Constructing Type-II and S-Scheme Heterojunctions of Cu 2O@Cu 4(SO 4)(OH) 6·H 2O Polyhedra by In Situ Etching Cu 2O with Different Exposed Facets for Enhanced Photocatalytic Sterilization and Degradation Performance. Inorg Chem 2023. [PMID: 37257171 DOI: 10.1021/acs.inorgchem.3c01220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The construction of type-II or S-scheme heterojunctions can effectively accelerate the directional migration of charge carriers and inhibit the recombination of electron-hole pairs to improve the catalytic performance of the composite catalyst; therefore, the construction and formation mechanism of a heterojunction are worth further investigation. Herein, Cu2O@Cu4(SO4)(OH)6·H2O core-shell polyhedral heterojunctions were fabricated via in situ etching Cu2O with octahedral, cuboctahedral, and cubic shapes by sodium thiosulfate (Na2S2O3). Cu2O@Cu4(SO4)(OH)6·H2O polyhedral heterojunctions demonstrated obviously enhanced sterilization and degradation performance than the corresponding single Cu2O polyhedra and Cu4(SO4)(OH)6·H2O. When Cu2O with a different morphology contacts with Cu4(SO4)(OH)6·H2O, a built-in electric field is established at the interface due to the difference in Fermi level (Ef); meanwhile, the direction of band bending and the band alignment are determined. These lead to the different migration pathways of electrons and holes, and thereby, a type-II or S-scheme heterojunction is constructed. The results showed that octahedral o-Cu2O@Cu4(SO4)(OH)6·H2O is an S-scheme heterojunction; however, cuboctahedral co-Cu2O@Cu4(SO4)(OH)6·H2O and cubic c-Cu2O@Cu4(SO4)(OH)6·H2O are type-II heterojunctions. By means of X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), diffuse reflectance spectra (DRS), and Mott-Schottky analyses, the band alignments, Fermi levels, and band offsets (ΔECB, ΔEVB) of Cu2O@Cu4(SO4)(OH)6·H2O polyhedral heterojunctions were estimated; the results indicated that the catalytic ability of the composite catalyst is determined by the type of heterojunction and the sizes of band offsets. Cubic c-Cu2O@Cu4(SO4)(OH)6·H2O has the strongest driving force (namely, biggest band offsets) to accelerate charge migration and effectively separate charge carriers, so it exhibits the strongest catalytic bactericidal and degrading abilities.
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Zhao W, Ji J, Ma K, Yu H, Tang C, Dong L, Li L, Wang J. Improved K-Resistance of a Cu-Modified TiO 2/CeO 2 Catalyst for SCR of NO x at Low Temperatures. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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3
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Zhou Y, Li M, Zhang T, Chen Y, Li X, Jia H, Xu P, Li X. Cooperative Characterization of In Situ TEM and Cantilever-TGA to Optimize Calcination Conditions of MnO 2 Nanowire Precursors. NANO LETTERS 2023; 23:2412-2420. [PMID: 36719107 DOI: 10.1021/acs.nanolett.2c04756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Calcination plays a vital role during material preparation. However, the calcination conditions have often been determined empirically or have been based on trial and error. Herein we present a cooperative characterization approach to optimize calcination conditions by gas-cell in situ TEM in collaboration with microcantilever-based thermogravimetric analysis (cantilever-TGA) techniques. The morphological evolution of precursors under atmospheric conditions is observed with in situ TEM, and the right calcination temperature is provided by cantilever-TGA. The proposed approach successfully optimizes the calcination conditions of fragile MnO2 nanowire precursors with multiple valence products. The cantilever-TGA shows that a calcination temperature above 560 °C is required to transform the MnO2 precursor to Mn3O4 under an N2 atmosphere, but the in situ TEM indicates that the nanowire structure is destroyed within only 30 min under calcination conditions. Our method further suggests that heating the precursor at 400 °C using an H2-containing atmosphere can produce Mn3O4 nanowires with good electrical properties.
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Affiliation(s)
- Yufan Zhou
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
| | - Ming Li
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
| | - Tao Zhang
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
| | - Ying Chen
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
| | - Xinyu Li
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
| | - Hao Jia
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
| | - Pengcheng Xu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
| | - Xinxin Li
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai200050, People's Republic of China
- University of Chinese Academy of Sciences, Beijing100049, People's Republic of China
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4
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Novel effects of copper precursors on the adsorption and desorption of elemental mercury over copper-based sulfides: Performance, mechanism, and kinetics. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2022.104636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Wang Z, Peng S, Zhu C, Wang B, Du B, Cheng T, Jiang Z, Sun L. Study of the denitration performance of a ceramic filter using a manganese-based catalyst. RSC Adv 2022; 13:344-354. [PMID: 36605665 PMCID: PMC9769093 DOI: 10.1039/d2ra06677g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
A MnO x /γ-Al2O3 catalyst was prepared by impregnation of manganese acetate and alumina. After optimizing the composition, it was loaded into a ceramic filter (CF) by a one-step coating method. The results show that MnO x /γ-Al2O3 had the best denitration activity when the Mn loading was 4 wt% with a calcination temperature of 400 °C. The MnO x /γ-Al2O3 catalyst ceramic filter (MA-CCF) was made by loading the CF twice with MnO x /γ-Al2O3. When face velocity (FV) was 1 m min-1, MA-CCF displayed more than 80% NO conversion at 125-375 °C and possessed a good resistance of H2O and SO2. The abundant surface adsorbed oxygen, dense membrane and high-density fiber structure on the outer layer of CF effectively protected the catalyst and could improve MA-CCF denitration activity. The multiple advantages of MA-CCF made it possible for good application prospects.
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Affiliation(s)
- Zhenzhen Wang
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China,Anhui Academy for Ecological and Environmental Science ResearchHefei230071China
| | - Shuchuan Peng
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China
| | - Chengzhu Zhu
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China
| | - Bin Wang
- CNBM Environmental Protection Research Institute(Jiangsu)Co., Ltd.Yancheng224051China
| | - Bo Du
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China
| | - Ting Cheng
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China
| | - Zhaozhong Jiang
- School of Resource and Environmental Engineering, Hefei University of TechnologyHefei230009China
| | - Lei Sun
- Anhui Academy for Ecological and Environmental Science ResearchHefei230071China
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Cai Y, Yang P, Liu Q, Ma K, Ma W, Song W, Qian Q, Gao F, Tan W, Dong L. Getting insights into gas-phase sulfation effect on catalytic performance of praseodymium oxides in NH3-SCR of NO. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Nano-insecticide: synthesis, characterization, and evaluation of insecticidal activity of ZnO NPs against Spodoptera litura and Macrosiphum euphorbiae. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02530-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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8
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Enhanced Water and Sulfur Resistance by Sm3+ Modification of Ce–Mn/TiO2 for NH3-SCR. Catal Letters 2022. [DOI: 10.1007/s10562-022-04023-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Fonzeu Monguen CK, El Kasmi A, Arshad MF, Kouotou PM, Daniel S, Tian ZY. Oxidative Dehydrogenation of Propane into Propene over Chromium Oxides. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cedric Karel Fonzeu Monguen
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Achraf El Kasmi
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- Laboratory LSIA UAE/U02ENSAH, ENSAH, Abdelmalek Essaadi University, Tetouan, Morocco
| | - Muhammad Fahad Arshad
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Patrick Mountapmbeme Kouotou
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- National Advanced School of Engineering of Maroua, University of Maroua, P.O. Box 46, Maroua, Cameroon
| | - Samuel Daniel
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen-Yu Tian
- Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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10
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Guo T, Pan H, Gao E, Zhang X, He Y. Mechanism of Propane Adsorption and the Following NO x Reduction over an In/BEA Catalyst: A Computational Study. ACS OMEGA 2022; 7:4501-4513. [PMID: 35155942 PMCID: PMC8829913 DOI: 10.1021/acsomega.1c06414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
To expand the knowledge on hydrocarbon selective catalytic reduction (SCR) and follow the research steps of methane-SCR and propane-SCR in our previous work, we studied the characteristics of propane adsorption on In/BEA zeolite, explored the NO and NO2 activation process on a propane adsorbed catalyst, and calculated the reaction enthalpy of two reaction pathways. Results showed that O site in the L-model (the [InO]+/BEA structure) was the main active site in the adsorption process, and any of the carbon atoms in the propane molecule could react with it, with a lower adsorption energy than methane (-3.20 vs -2.98 eV). Also, NO or NO2 could not be directly activated on the propane adsorbed catalyst, indicating that the process may be complicated. In addition, propane reduces the NO or NO2 molecule with two different pathways and the final products were less stable than those of methane (-5.6 vs -20 eV). These results could explain the fact that propane and methane had different reaction temperatures and would further deepen our understanding of the propane-SCR process.
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Affiliation(s)
- Tianjiao Guo
- Key
Laboratory of Pollution Exposure and Health Intervention of Zhejiang
Province, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Hua Pan
- Key
Laboratory of Pollution Exposure and Health Intervention of Zhejiang
Province, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
- Huai’an
lvneng Environmental Technology Co., Ltd, Huai’an 223021, China
| | - Erhao Gao
- School
of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China
| | - Xuming Zhang
- School
of Mechanical Engineering and Automation, Zhejiang Sci-Tech University, Hangzhou 310018, China
- Huai’an
lvneng Environmental Technology Co., Ltd, Huai’an 223021, China
| | - Yi He
- College
of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310015, China
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11
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Jalali S, Ardjmand M, Ramavandi B, Nosratinia F. Elimination of amoxicillin using zeolite Y-sea salt as a good catalyst for activation of hydrogen peroxide: Investigating degradation pathway and the effect of wastewater chemistry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 302:114045. [PMID: 34749086 DOI: 10.1016/j.jenvman.2021.114045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 10/08/2021] [Accepted: 10/29/2021] [Indexed: 05/07/2023]
Abstract
The sea contains elements that can play a useful role in catalyzing reactions. Therefore, this research was done to focus on eliminating amoxicillin (AMX) from wastewater utilizing zeolite Y- sea salt catalyst in the presence of H2O2. The influences of furnace temperature (200-500 °C) and time duration in the furnace (1-4 h) were optimized during catalyst generation. Also, the effects of different parameters on AMX removal, such as pH (5.0-9.0), catalyst dose (0-10 g.L-1), AMX concentration (50-300 mg.L-1), contact time (10-130 min), and H2O2 concentration (0-6 mL/100 mL distilled water) were investigated. Different analyses like Brunauer-Emmett-Teller (BET), Fourier transform infrared (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were conducted to reveal catalyst properties. The BET-specific surface area of the catalyst (12.69 m2g-1) insignificantly (p-value > 0.05) changed after AMX removal (13.04 m2g-1), indicating the strength of the prepared catalyst. The active groups of N-H, O-H-O, O-Si-O, C-H, Si-O-Si, and Si-O-Al were determined in the catalyst structure. The highest removal of AMX (93%) was achieved in the zeolite-sea salt/H2O2 system at a pH level of 6.0 and an H2O2 concentration of 0.1 mL/100 mL. Elimination of the AMX followed pseudo-first-order kinetics. The catalyst was reclaimed up to 7 times and the removal efficiency was suitable up to the fifth stage. The by-products and reaction pathways were investigated by gas chromatography-mass spectrometry (GC-MS). The results showed that zeolite-sea salt can be utilized as an H2O2 activator for the effective degradation of AMX from wastewater.
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Affiliation(s)
- Setare Jalali
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, 1777613651, Iran
| | - Mehdi Ardjmand
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, 1777613651, Iran.
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, 7518759577, Iran.
| | - Ferial Nosratinia
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, 1777613651, Iran
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12
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Feng C, Han L, Wang P, Liu X, Zhou G, Zhang D. Unraveling SO 2-tolerant mechanism over Fe 2(SO 4) 3/TiO 2 catalysts for NO x reduction. J Environ Sci (China) 2022; 111:340-350. [PMID: 34949363 DOI: 10.1016/j.jes.2021.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 06/14/2023]
Abstract
Developing low-temperature SO2-tolerant catalysts for the selective catalytic reduction of NOx is still a challenging task. The sulfation of active metal oxides and deposition of ammonium bisulfate deactivate catalysts, due to the difficult decomposition of the as-formed sulfate species at low temperatures (<300 °C). In recent years, metal sulfate catalysts have attracted increasing attention owing to their good catalytic activity and strong SO2 tolerance at higher temperatures (>300°C); however, the SO2-tolerant mechanism of metal sulfate catalysts is still ambiguous. In this study, Fe2(SO4)3/TiO2 and Ce2(SO4)3/TiO2 catalysts were prepared using the corresponding metal sulfate salt as the precursor. These catalysts were tested for their low-temperature activity and SO2 tolerance activity. Compared to Ce2(SO4)3/TiO2, Fe2(SO4)3/TiO2 showed significantly better low-temperature activity and SO2 tolerance. It was demonstrated that less surface sulfate species formed on Fe2(SO4)3/TiO2 and Ce2(SO4)3/TiO2. However, the presence of NO and O2 could assist the decomposition of NH4HSO4 over Fe2(SO4)3/TiO2 at a lower temperature, endowing Fe2(SO4)3/TiO2 with better low-temperature SO2 tolerance than Ce2(SO4)3/TiO2. This study unraveled the SO2-tolerant mechanism of Fe2(SO4)3/TiO2 at lower temperatures (<300 °C), and a potential strategy is proposed for improving the low-temperature SO2-tolerance of catalysts with Fe2(SO4)3 as the main active component or functional promoter.
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Affiliation(s)
- Chong Feng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Lupeng Han
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Penglu Wang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Xiangyu Liu
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Guangyuan Zhou
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China.
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13
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Coupling MOF-derived titanium oxide with CdIn2S4 formed 2D/3D core–shell heterojunctions with enhanced photocatalytic performance. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119765] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Tan W, Liu A, Xie S, Yan Y, Shaw TE, Pu Y, Guo K, Li L, Yu S, Gao F, Liu F, Dong L. Ce-Si Mixed Oxide: A High Sulfur Resistant Catalyst in the NH 3-SCR Reaction through the Mechanism-Enhanced Process. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:4017-4026. [PMID: 33656869 DOI: 10.1021/acs.est.0c08410] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Investigating catalytic reaction mechanisms could help guide the design of catalysts. Here, aimed at improving both the catalytic performance and SO2 resistance ability of catalysts in the selective reduction of NO by NH3 (NH3-SCR), an innovative CeO2-SiO2 mixed oxide catalyst (CeSi2) was developed based on our understanding of both the sulfur poisoning and reaction mechanisms, which exhibited excellent SO2/H2O resistance ability even in the harsh working conditions (containing 500 ppm of SO2 and 5% H2O). The strong interaction between Ce and Si (Ce-O-Si) and the abundant surface hydroxyl groups on CeSi2 not only provided fruitful surface acid sites but also significantly inhibited SO2 adsorption. The NH3-SCR performance of CeSi2 was promoted by an enhanced Eley-Rideal (E-R) mechanism in which more active acid sites were preserved under the reaction conditions and gaseous NO could directly react with adsorbed NH3. This mechanism-enhanced process was even further promoted on sulfated CeSi2. This work provides a reaction mechanism-enhanced strategy to develop an environmentally friendly NH3-SCR catalyst with superior SO2 resistance.
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Affiliation(s)
- Wei Tan
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | | | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Yong Yan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Thomas E Shaw
- Department of Chemistry, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), University of Central Florida, Orlando, Florida 32816, United States
| | | | | | - Lulu Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003 Jiangsu, China
| | | | | | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
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Jian Y, Jiang Z, He C, Tian M, Song W, Gao G, Chai S. Crystal facet engineering induced robust and sinter-resistant Au/α-MnO2 catalyst for efficient oxidation of propane: indispensable role of oxygen vacancies and Auδ+ species. Catal Sci Technol 2021. [DOI: 10.1039/d0cy01749c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Optimizing the interaction between metal active centers and supports by tuning crystal facets is an effective strategy to improve the activity and stability of catalysts.
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Affiliation(s)
- Yanfei Jian
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
| | - Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
- National Engineering Laboratory for VOCs Pollution Control Material & Technology
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing 102249
- P.R. China
| | - Guanqun Gao
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- P.R. China
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Zhao J, Wen Z, Zhu R, Li Z, Ding R, Zhu Y, Gu T, Yang R, Zhu Z. In/H-Beta modified by Co3O4 and its superior performance in the presence of H2O and SO2 for selective catalytic reduction of NO with CH4. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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17
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Insights into the effects of sulfate species on CuO/TiO2 catalysts for NH3-SCR reactions. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111191] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Improvement of low-temperature NH3-SCR catalytic activity over Mn-Ce oxide catalysts supported on sewage sludge char activated with KOH and H3PO4. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0635-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Selective Catalytic Reduction of N2O by CO over Fe-Beta Zeolites Catalysts: Influence of Iron Species Distribution. CATALYSIS SURVEYS FROM ASIA 2020. [DOI: 10.1007/s10563-020-09313-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang J, Yi X, Ng D, Li H, Miao J, Su Q, Chen J, Xie Z. Synthesis and Characterization of Mn–Ce–VOx/TiO2 Nanocomposite for SCR of NOx at Low Temperatures: Role of Mn, Ce and V Oxide. Top Catal 2020. [DOI: 10.1007/s11244-020-01315-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Yu Y, Zhang J, Chen C, Ma M, He C, Miao J, Li H, Chen J. Selective catalytic reduction of NOx with NH3 over TiO2 supported metal sulfate catalysts prepared via a sol–gel protocol. NEW J CHEM 2020. [DOI: 10.1039/d0nj02647f] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Metal sulfate catalysts exhibited high SO2 tolerance in the NH3-SCR reaction. The NH3-SCR reaction mechanism on metal sulfate catalysts should follow the Eley–Rideal mechanism.
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Affiliation(s)
- Yanke Yu
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Jiali Zhang
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Changwei Chen
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Mudi Ma
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Chi He
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Jifa Miao
- Center for Excellence in Regional Atmospheric Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen
- P. R. China
| | - Huirong Li
- Center for Excellence in Regional Atmospheric Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen
- P. R. China
| | - Jinsheng Chen
- Center for Excellence in Regional Atmospheric Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen
- P. R. China
| |
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