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Hua Y, Vikrant K, Kim KH, Heynderickx PM, Boukhvalov DW. Low-temperature thermocatalytic removal of formaldehyde in air using copper manganite spinels. ENVIRONMENTAL RESEARCH 2024; 255:119186. [PMID: 38777297 DOI: 10.1016/j.envres.2024.119186] [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: 02/03/2024] [Revised: 04/30/2024] [Accepted: 05/18/2024] [Indexed: 05/25/2024]
Abstract
The removal of formaldehyde (FA) is vital for indoor air quality management in light of its carcinogenic propensity and adverse environmental impact. A series of copper manganite spinel structures (e.g., CuMn2O4) are prepared using the sol-gel combustion method and treated with reduction or oxidation pretreatment at 300 °C condition. Accordingly, CuMn2O4-O ("O" suffix for oxidation pre-treatment in air) is identified as the best performer to achieve 100% conversion (XFA) of FA (50 ppm) at 90 °C; its performance, if assessed in terms of reaction kinetic rate (r) at XFA = 10%, is 5.02E-03 mmol g-1 h-1. The FA removal performance increases systematically with decreases in flow rate, FA concentration, and relative humidity (RH) or with increases in bed mass. The reaction pathways and intermediates of FA catalytic oxidation on CuMn2O4-A are studied with density functional theory simulations, temperature-programmed characterization experiments, and in-situ diffuse reflectance infrared Fourier transform spectroscopy. The synergistic combination of large quantities of adsorbed oxygen (OA) species and oxidized metal species (e.g., Cu2+) contribute to the enhanced catalytic performance of CuMn2O4-O to oxidize FA into CO2 with the reaction intermediates of H2CO2 (DOM), HCOO-, and CO. The present study is expected to provide valuable insights into the thermocatalytic oxidation of FA over spinel CuMn2O4 materials and their catalytic performances in relation to the key process variables.
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Affiliation(s)
- Yongbiao Hua
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea.
| | - Philippe M Heynderickx
- Center for Green Chemistry and Environmental Biotechnology (GREAT), Engineering of Materials Via Catalysis and Characterization, Ghent University Global Campus, 119-5 Songdo Munhwa-ro, Yeonsu-gu, Incheon, 406-840, Republic of Korea; Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000, Ghent, Belgium.
| | - Danil W Boukhvalov
- College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing, 210037, China; Institute of Physics and Technology, Ural Federal University, Mira Street 19, 620002, Yekaterinburg, Russia
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2
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Yang X, Ma Z, Wang D, Yu X, Zhu X, Wang T, Yuan Y, Guo Y, Shi B, Ge M, Ru G. Oxygen vacancy-mediated Mn 2O 3 catalyst with high efficiency and stability for toluene oxidation. J Colloid Interface Sci 2024; 675:815-824. [PMID: 39002232 DOI: 10.1016/j.jcis.2024.07.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/15/2024]
Abstract
Oxygen vacancy engineering in transition metal oxides is an effective strategy for improving catalytic performance. Herein, defect-enriched Mn2O3 catalysts were constructed by controlling the calcination temperature. The high content of oxygen vacancies and accompanying Mn4+ ions were generated in Mn2O3 catalysts calcined at low temperature, which could greatly improve the low-temperature reducibility and migration of surface oxygen species. DFT theoretical calculations further confirmed that molecular oxygen and toluene were easily adsorbed over defective α-Mn2O3 (222) facets with an energy of -0.29 and -0.48 eV, respectively, and corresponding OO bond length is stretched to 1.43 Å, resulting in the highly reactive oxygen species. Mn2O3-300 catalyst with abundant oxygen vacancies exhibited the highest specific reaction rate and lowest activation energy. Furthermore, the optimized catalyst possessed the outstanding stability, water tolerance and CO2 yield. In comparison with the fresh Mn2O3-300 catalyst, the physical structure and surface property of the used catalyst remained almost unchanged regardless of whether undergoing the stability test at consecutive catalytic runs as well as high temperature, and water resistance test. In situ DRIFTS spectra further elucidated that introducing the water vapor had little effect on the reaction intermediates, indicating the excellent durability of the defect-enriched catalyst.
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Affiliation(s)
- Xueqin Yang
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Ziqing Ma
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Dadao Wang
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Xiaolin Yu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China.
| | - Xiuhong Zhu
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Ting Wang
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Yuan Yuan
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China
| | - Yucong Guo
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Bo Shi
- College of Chemistry and Materials Science, Hebei Key Laboratory of Inorganic Nano-materials, Hebei Normal University, Shijiazhuang 050024, PR China
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Guangxin Ru
- College of Forestry, Henan Agricultural University, Zhengzhou 450046, PR China.
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Tang J, Wang X, Pan H, Zhou B. A first-principles study on Ni-decorated MoS 2 for efficient formaldehyde degradation over a wide temperature range. Phys Chem Chem Phys 2024; 26:12672-12680. [PMID: 38602365 DOI: 10.1039/d4cp00189c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
The development of a high-efficiency, low-cost, and environmentally friendly catalyst for formaldehyde degradation is crucial for addressing the issue of indoor formaldehyde pollution. Given that modern individuals spend over 90% of their time indoors, effectively tackling indoor formaldehyde pollution holds significant importance. Therefore, this paper proposes an efficient catalyst for formaldehyde degradation: surface modification of MoS2 by single-atom Ni, which can convert formaldehyde into harmless H2O and CO2. The DFT method is employed to systematically investigate the oxidative degradation pathways of formaldehyde on the surface of Ni-doped MoS2. The research focuses on two common oxidative degradation pathways in both the L-H mechanism and E-R mechanism. Our findings demonstrate that these four reaction paths occur spontaneously within the temperature range of 300-800 K with a reaction equilibrium constant greater than 105. Moreover, even under extreme temperature conditions (100 K), the reaction rate remains favorable. Furthermore, our findings indicate that the minimum activation energy is merely 0.91 eV and H2O and CO2 only need to overcome an energy barrier of 0.71 eV for desorption from the catalyst surface. This substantiates its potential application both in indoor environments and under extreme temperature conditions. This theoretical research provides innovative ideas and strategies for effectively oxidizing formaldehyde.
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Affiliation(s)
- Jiahui Tang
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Xiaocha Wang
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Honggang Pan
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
| | - Baozeng Zhou
- Tianjin Key Laboratory of Film Electronic & Communicate Devices, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
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Habibi B, Pashazadeh A, Pashazadeh S, Saghatforoush LA. A new method for the preparation of MgAl layered double hydroxide-copper metal-organic frameworks structures: application to electrocatalytic oxidation of formaldehyde. Sci Rep 2024; 14:5222. [PMID: 38433243 PMCID: PMC10909854 DOI: 10.1038/s41598-024-55770-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/27/2024] [Indexed: 03/05/2024] Open
Abstract
In this research, we present a novel design protocol for the in-situ synthesis of MgAl layered double hydroxide-copper metal-organic frameworks (LDH-MOFs) nanocomposite based on the electrocoagulation process and chemical method. The overall goal in this project is the primary synthesis of para-phthalic acid (PTA) intercalated MgAl-LDH with Cu (II) ions to produce the paddle-wheel like Cu-(PTA) MOFs nanocrystals on/in the MgAl-LDH structure. The physicochemical properties of final product; Cu-(PTA) MOFs/MgAl-LDH, were characterized by the surface analysis and chemical identification methods (SEM, EDX, TEM, XRD, BET, FTIR, CHN, DLS, etc.). The Cu-(PTA) MOFs/MgAl-LDH nanocomposite was used to modification of the carbon paste electrode (CPE); Cu-(PTA) MOFs/MgAl-LDH/CPE. The electrochemical performance of Cu-(PTA) MOFs/MgAl-LDH/CPE was demonstrated through the utilization of electrochemical methods. The results show a stable redox behavior of the Cu (III)/Cu (II) at the surface of Cu-(PTA) MOFs/MgAl-LDH/CPE in alkaline medium (aqueous 0.1 M NaOH electrolyte). Then, the Cu-(PTA) MOFs/MgAl-LDH/CPE was used as a new electrocatalyst toward the oxidation of formaldehyde (FA). Electrochemical data show that the Cu-(PTA) MOFs/MgAl-LDH/CPE exhibits superior electrocatalytic performance on the oxidation of FA. Also the diffusion coefficient, exchange current density (J°) and mean value of catalytic rate constant (Kcat) were found to be 1.18 × 10-6 cm2 s-1, 23 mA cm-2 and 0.4537 × 104 cm3 mol-1 s-1, respectively. In general, it can be said the Cu-(PTA) MOFs/MgAl-LDHs is promising candidate for applications in direct formaldehyde fuel cells.
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Affiliation(s)
- Biuck Habibi
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran
| | - Ali Pashazadeh
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran.
| | - Sara Pashazadeh
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran
| | - Lotf Ali Saghatforoush
- Department of Chemistry, Payame Noor University, Tehran, 19395-4697, Islamic Republic of Iran
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Shen Y, Sun J, Li J, Dong Y, Wang W, Song Z, Zhao X, Mao Y. Insights into the underpinning effect of graphene in Cu 1Mn 10 on enhancing the low-temperature catalytic activity for CO oxidation. ENVIRONMENTAL RESEARCH 2023; 237:116981. [PMID: 37640095 DOI: 10.1016/j.envres.2023.116981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/30/2023] [Accepted: 08/23/2023] [Indexed: 08/31/2023]
Abstract
CO emission is a critical issue of industrial processes such as steel-smelting, cement manufacturing, and waste incineration. Catalytic oxidation based on Cu-Mn binary catalysts shows great potential for efficient removal of CO, whereas their practical applicability is limited by the inferior low-temperature catalytic activity and the high catalyst cost owing to a substantial quantity of Cu. In this study, doping graphene is designed to adjust the electron transfer capability to improve the low-temperature catalytic activity as well as reduce the amount of Cu, and thereby Cu1Mn10 catalysts doped with slight amounts of graphene (x%G-Cu1Mn10, x is 1∼5) were fabricated. It was found that the introduction of graphene could form effective electron transport channels to enhance the intermetallic interaction and oxygen vacancy generation, thus improving the low-temperature catalytic performance of the Cu1Mn10 catalyst. Among all the catalysts, 4%G-Cu1Mn10 exhibited the highest activity, achieving CO conversion of 92% at 110 °C at a weight hourly space velocity of 120,000 mL/(g∙h). The introduction of graphene also enabled the catalyst with excellent catalytic activity and stability at a relative humidity of 70%. Attractively, 4%G-Cu1Mn10 can be further loaded into the polyester fabric, presenting great application potentials in the effective elimination of CO during the dust removal process since the flue gas temperature in the dust collector is just around the T90% and the catalyst that is inside of fabric fiber rather than on the fabric surface can be rarely influenced by the dust. In general, doping graphene provides a facile method to enhance the low-temperature activities of the Cu-Mn binary catalysts and cut down the use of valuable Cu, showing great application potential.
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Affiliation(s)
- Yafang Shen
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Jing Sun
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China.
| | - Jingwei Li
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Yilin Dong
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Wenlong Wang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Zhanlong Song
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Xiqiang Zhao
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Yanpeng Mao
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong, 250061, China
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6
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Yang Z, Qin G, Tang R, Jia L, Wang F, Liu T. Formaldehyde Oxidation of Ce 0.8Zr 0.2O 2 Nanocatalysts for Room Temperature: Kinetics and Effect of pH Value. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2074. [PMID: 37513085 PMCID: PMC10384232 DOI: 10.3390/nano13142074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/12/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023]
Abstract
Ce0.8Zr0.2O2 catalysts were prepared via the co-precipitation method under different pH conditions. The catalysts were characterized via TEM, XRD, XPS, BET, Raman, and FTIR. The oxidation performance of formaldehyde was tested. Precipitation pH affects the physicochemical properties and performance of the Ce0.8Zr0.2O2 catalyst. By controlling the precipitation pH at 10.5, the Ce0.8Zr0.2O2 catalyst with the largest specific surface area, the smallest grain size with the best formaldehyde removal rate (98.85%), abundant oxygen vacancies, and the best oxidation performance were obtained. Meanwhile, the kinetic parameters of the catalyst were experimentally investigated and the calculated activation energy was 12.6 kJ/mol and the number of reaction steps was 1.4 and 1.2.
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Affiliation(s)
- Zonglin Yang
- College of Chemistry and Environment, Yunnan Minzu University, Technology Innovation Team of Green Purification Technology for Industrial Waste Gas, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials, Yunnan Province Education Department, Kunming 650504, China
| | - Gaoyuan Qin
- China Energy Engineering Group Yunnan Electric Power Design Institute Co., Ltd., Kunming 650051, China
| | - Ruijiu Tang
- College of Chemistry and Environment, Yunnan Minzu University, Technology Innovation Team of Green Purification Technology for Industrial Waste Gas, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials, Yunnan Province Education Department, Kunming 650504, China
| | - Lijuan Jia
- College of Chemistry and Environment, Yunnan Minzu University, Technology Innovation Team of Green Purification Technology for Industrial Waste Gas, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials, Yunnan Province Education Department, Kunming 650504, China
| | - Fang Wang
- College of Chemistry and Environment, Yunnan Minzu University, Technology Innovation Team of Green Purification Technology for Industrial Waste Gas, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials, Yunnan Province Education Department, Kunming 650504, China
| | - Tiancheng Liu
- College of Chemistry and Environment, Yunnan Minzu University, Technology Innovation Team of Green Purification Technology for Industrial Waste Gas, Education Department of Yunnan, Key Laboratory of Environmental Functional Materials, Yunnan Province Education Department, Kunming 650504, China
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7
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Liu X, Liu Y, Wu Y, Dong S, Qi G, Chen C, Xi S, Luo P, Dai Y, Han Y, Zhou Y, Guo Y, Wang J. Room temperature removal of high-space-velocity formaldehyde boosted by fixing Pt nanoparticles into Beta zeolite framework. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131848. [PMID: 37336111 DOI: 10.1016/j.jhazmat.2023.131848] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/29/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
Catalytic oxidation of volatile organic compounds like formaldehyde (HCHO) over the noble metals catalysts at room temperature is among the most promising strategies to control indoor pollution but remains one challenge to maximize the efficiency of noble metal species. Herein, we demonstrated the straightforward encapsulation of highly dispersive Pt nanoparticles (NPs) within BEA zeolite and adjacent with the surface hydroxyl groups to reach the synergistic HCHO oxidation at 25 °C. High efficiency and long-term stability was reached under large space velocity (∼100% conversion at 180,000 mL (gcat × h)-1 and >95% at 360,000 mL (gcat × h)-1), affording rapid elimination rate of 129.4 μmol (gPt × s)-1 and large turnover frequency of 2.5 × 10-2 s-1. This is the first synergy example derived from the hydroxyl groups and confined noble metals within zeolites that accelerated the rate-determining step, the formate transformation, in the HCHO elimination.
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Affiliation(s)
- Xiaoling Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yitong Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yue Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Shan Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Guoqin Qi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Cailing Chen
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Shibo Xi
- Institute of Sustainability for Chemicals, Energy and Environment, A⁎STAR (Agency for Science, Technology and Research), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
| | - Pan Luo
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yihu Dai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Yu Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
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Hua Y, Ahmadi Y, Kim KH. Thermocatalytic Degradation of Gaseous Formaldehyde Using Transition Metal-Based Catalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2300079. [PMID: 37114840 PMCID: PMC10375094 DOI: 10.1002/advs.202300079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Formaldehyde (HCHO: FA) is one of the most abundant but hazardous gaseous pollutants. Transition metal oxide (TMO)-based thermocatalysts have gained much attention in its removal due to their excellent thermal stability and cost-effectiveness. Herein, a comprehensive review is offered to highlight the current progress in TMO-based thermocatalysts (e.g., manganese, cerium, cobalt, and their composites) in association with the strategies established for catalytic removal of FA. Efforts are hence made to describe the interactive role of key factors (e.g., exposed crystal facets, alkali metal/nitrogen modification, type of precursors, and alkali/acid treatment) governing the catalytic activity of TMO-based thermocatalysts against FA. Their performance has been evaluated further between two distinctive operation conditions (i.e., low versus high temperature) based on computational metrics such as reaction rate. Accordingly, the superiority of TMO-based composite catalysts over mono- and bi-metallic TMO catalysts is evident to reflect the abundant surface oxygen vacancies and enhanced FA adsorptivity of the former group. Finally, the present challenges and future prospects for TMO-based catalysts are discussed with respect to the catalytic oxidation of FA. This review is expected to offer valuable information to design and build high performance catalysts for the efficient degradation of volatile organic compounds.
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Affiliation(s)
- Yongbiao Hua
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Younes Ahmadi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, South Korea
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9
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Liu X, Wang C, Chen Y, Qin Q, Li Y, He H. Formaldehyde oxidation on Pd/USY catalysts at room temperature: The effect of acid pretreatment on supports. J Environ Sci (China) 2023; 125:811-822. [PMID: 36375962 DOI: 10.1016/j.jes.2022.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/13/2022] [Accepted: 02/16/2022] [Indexed: 06/16/2023]
Abstract
The complete catalytic oxidation of formaldehyde (HCHO) to CO2 and H2O at room temperature is a green route for indoor HCHO removal. Zeolite is an excellent carrier material for HCHO oxidation due to its large surface area, intricate pores and high adsorption capacity. However, the zeolite-supported noble metal catalysts have currently shown relatively low activity especially at room temperature. In this work, we present a facile acid treatment strategy for zeolite catalysts to improve the hydroxyl concentration and further enhance their catalytic activity for HCHO oxidation. Activity tests illustrated that HCHO could be completely oxidized to CO2 and H2O at a nearly 100% conversion rate with a weight hourly space velocity (WHSV) of 150,000 mL/(g∙hr) at 25°C, when the support of Pd/USY catalysts was pretreated by hydrochloric acid with a concentration of 0.20 mol/L. The characterization results revealed that the active hydroxyl groups originated from the dealumination in the acid treatment play a key role in the HCHO oxidation reaction. The deduced reaction mechanism suggests that bridging hydroxyl groups may oxidize HCHO to dioxymethylene (DOM) species and terminal hydroxyl groups are responsible for the transformation of DOM groups to formate (HCOO) species.
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Affiliation(s)
- Xiaofeng Liu
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunying Wang
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Chinese Academy of Sciences, Ningbo Urban Environment Observation and Research Station-NUEORS, Ningbo 315800, China
| | - Yumin Chen
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China; Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China.
| | - Qi Qin
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China
| | - Yaobin Li
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Chinese Academy of Sciences, Ningbo Urban Environment Observation and Research Station-NUEORS, Ningbo 315800, China; Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China.
| | - Hong He
- Center for Excellence in Regional Atmospheric Environment, Key Laboratory of Urban Pollutant Conversion, Chinese Academy of Sciences, Institute of Urban Environment, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Chinese Academy of Sciences, Ningbo Urban Environment Observation and Research Station-NUEORS, Ningbo 315800, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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10
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Yuan K, Zeng Y, Gan J, Zhong Z, Xing W. Construction of Pt@CNTs/SiC Catalytic Membrane for High-Efficiency Removal of Formaldehyde and Dust. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kai Yuan
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing211816, PR China
| | - Yiqing Zeng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing211816, PR China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing211816, PR China
| | - Jinxin Gan
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing211816, PR China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing211816, PR China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing211816, PR China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing211816, PR China
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11
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Study on the Formaldehyde Oxidation Reaction of Acid-Treated Manganese Dioxide Nanorod Catalysts. Catalysts 2022. [DOI: 10.3390/catal12121667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Formaldehyde is an important downstream chemical of syngas. Furniture and household products synthesized from formaldehyde will slowly decompose and release formaldehyde again during use, which seriously affects indoor air quality. In order to solve the indoor formaldehyde pollution problem, this paper took the catalytic oxidation of formaldehyde as the research object; prepared a series of low-cost, acid-treated manganese dioxide nanorod catalysts; and investigated the effect of the acid-treatment conditions on the catalysts’ activity. It was found that the MnNR-0.3ac-6h catalyst with 0.3 mol/L sulfuric acid for 6 h had the best activity. The conversion rate of formaldehyde reached 98% at 150 °C and 90% at 25 °C at room temperature. During the reaction time of 144 h, the conversion rate of formaldehyde was about 90%, and the catalyst maintained a high activity. It was found that acid treatment could increase the number of oxygen vacancies on the surface of the catalysts and promote the production of reactive oxygen species. The amount of surface reactive oxygen species of the MnNR-0.3ac-6h catalyst was about 13% higher than that of the catalyst without acid treatment.
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12
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Wang S, Cui Y, Zhao C, Liang C, Li C. In Situ Fabrication of the Al 2O 3@NiMo Core–Shell Catalyst from LDH for Low-Pressure Hydrodeoxygenation of Fatty Acid Methyl Ester. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shudong Wang
- State Key Laboratory of Fine Chemicals & Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
| | - Yuhan Cui
- State Key Laboratory of Fine Chemicals & Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
| | - Chenxi Zhao
- State Key Laboratory of Fine Chemicals & Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
| | - Changhai Liang
- State Key Laboratory of Fine Chemicals & Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
| | - Chuang Li
- State Key Laboratory of Fine Chemicals & Laboratory of Advanced Materials and Catalytic Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
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13
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Jang Y, Lee YH, Eom H, Lee SM, Kim SS. Effect of preparation method of noble metal supported catalyts on formaldehyde oxidation at room temperature: Gas or liquid phase reduction. J Environ Sci (China) 2022; 122:201-216. [PMID: 35717085 DOI: 10.1016/j.jes.2022.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 01/12/2022] [Accepted: 01/17/2022] [Indexed: 06/15/2023]
Abstract
Formaldehyde (HCHO) is toxic to the human body and is one of the main threats to the indoor air quality (IAQ). As such, the removal of HCHO is imperative to improving the IAQ, whereby the most useful method to effectively remove HCHO at room temperature is catalytic oxidation. This review discusses catalysts for HCHO room-temperature oxidation, which are categorized according to their preparation methods, i.e., gas-phase reduction and liquid-phase reduction methods. The HCHO oxidation performances, structural features, and reaction mechanisms of the different catalysts are discussed, and directions for future research on catalytic oxidation are reviewed.
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Affiliation(s)
- Younghee Jang
- Department of Environmental Energy Envineering, Graduate School of kyonggi University, Gyeonggi-do 16227, Korea
| | - Ye Hwan Lee
- Department of Environmental Energy Envineering, Graduate School of kyonggi University, Gyeonggi-do 16227, Korea
| | - Hanki Eom
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea
| | - Sang Moon Lee
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea
| | - Sung Su Kim
- Department of Environmental Energy Engineeing, Kyonggi University, Gyonggi-do 16227, Korea.
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14
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Removal of Volatile Organic Compounds (VOCs) from Air: Focus on Biotrickling Filtration and Process Modeling. Processes (Basel) 2022. [DOI: 10.3390/pr10122531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Biotrickling filtration is a well-established technology for the treatment of air polluted with odorous and volatile organic compounds (VOCs). Besides dozens of successful industrial applications of this technology, there are still gaps in a full understanding and description of the mechanisms of biotrickling filtration. This review focuses on recent research results on biotrickling filtration of air polluted with single and multiple VOCs, as well as process modeling. The modeling offers optimization of a process design and performance, as well as allows deeper understanding of process mechanisms. An overview of the developments of models describing biotrickling filtration and conventional biofiltration, as primarily developed and in many aspects through similar processes, is presented in this paper.
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15
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Acid-Modified Sepiolite-Supported Pt (Noble Metal) Catalysts for HCHO Oxidation at Ambient Temperature. Catalysts 2022. [DOI: 10.3390/catal12111299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The critical need to enhance the quality of indoor air leads to the improvement of catalyst activity for the removal of formaldehyde. Sepiolite can be utilized in catalytic reactions for its unique structure, composition and high surface area. The adhesion between sepiolite fibers and the blocked microporous channel (by impurities) demands the activation of natural sepiolite through acid treatment. This treatment successfully produces acid-modified sepiolite Pt-supported samples. The impacts of different acid concentrations, Pt loading content and calcination temperature on catalytic activity for formaldehyde (HCHO) oxidation are studied. The catalytic activity of HCHO is characterized and evaluated by techniques including specific surface area, X-ray diffraction, Fourier transform infrared spectrum, X-ray photoelectron spectroscopy and transmission electron microscopy. The results show the maximum specific area of sepiolite at the optimized 0.06 M acid concentration. Among all the prepared samples, the 0.02Pt/Sep catalyst calcined at 500 °C exhibits the highest catalytic activity for the oxidation of HCHO.
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16
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Yuan F, Li C, Yang R, Tan Y, Ma R, Zhang X, Zheng S, Sun Z. High-efficient mineralization of formaldehyde by three-dimensional "PIZZA"-like bismuth molybdate-titania/diatomite composite. J Colloid Interface Sci 2022; 624:713-724. [PMID: 35696789 DOI: 10.1016/j.jcis.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/03/2022] [Accepted: 06/03/2022] [Indexed: 12/17/2022]
Abstract
The application of TiO2-based photocatalysts in air pollution control has attracted much attention thanks to their advantageous green and sustainable performance. However, how to improve the degradation efficiency under visible light is still challenging. Herein, we report a ternary three-dimensional "PIZZA"-like Bi2MoO6-TiO2/diatomite (BTD) composite with high-efficient mineralization and recycling performance towards gaseous formaldehyde (HCHO) under visible light. The high-efficient adsorption-photocatalysis collaborative system with intimate interface combination is successfully established among Bi2MoO6 (BMO), TiO2 and diatomite. The HCHO mineralization rate constant of BTD-1:2 composite is up to around 4.03 times and 2.18 times higher than those of bare BMO and binary Bi2MoO6-TiO2 composite, respectively. It is indicated that the introduction of diatomite increases active sites and plays the vital role in the improvement of photocatalysis. In addition, the photogenerated holes (h+) and hydroxyl radical (OH) are proved to be the main active species for HCHO mineralization. Furthermore, there is a competitive adsorption relationship between water (H2O) molecules and HCHO molecules, and both H2O molecules and oxygen (O2) molecules participated in the reaction of HCHO mineralization based on in-situ DRIFTs spectra analysis. Our work would give a new perspective on gaseous HCHO purification.
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Affiliation(s)
- Fang Yuan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Renfeng Yang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Ye Tan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China; Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Ruixin Ma
- Hebei Key Laboratory of Hazardous Chemicals Safety and Control Technology, School of Chemical and Environmental Engineering, North China Institute of Science and Technology, Langfang 065201, China
| | - Xiangwei Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Shuilin Zheng
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
| | - Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
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17
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Li D, Chen X, Huang Y, Zhang G, Zhou D, Xiao B. Selective catalytic oxidation of formaldehyde on single V- and Cr-atom decorated magnetic C 4N 3 substrate: A first principles study. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129608. [PMID: 35872455 DOI: 10.1016/j.jhazmat.2022.129608] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/04/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Formaldehyde (HCHO) is the most common indoor hazardous pollutant and has attracted great concern because its long-term exposure has adverse health effects on humans. Retention and catalytic oxidation of highly hazardous HCHO is an efficient and environmentally friendly method to use for air remediation, but a major obstacle to this procedure is the lack of an appropriate catalyst. Herein, two-dimensional magnetic C4N3 material with a 3d-transition metal as activate sites was systemically investigated in HCHO oxidation using density functional theory calculations. The results show that V-C4N3 and Cr-C4N3 have high structural stability and shallow activation barriers for O2 decomposition; these characteristics provide the necessary precursors for the subsequent oxidation reaction. Moreover, the V-C4N3 and Cr-C4N3 catalysts have unique selective adsorption and catalysis toward HCHO in a mixture of some typical in-door volatile organic compounds (VOCs) and air. The corresponding dynamic barrier for each reaction step was investigated and the mechanism involved in HCHO oxidation was revealed in detail. Aggregation of metal atoms in the V-C4N3 and Cr-C4N3 catalysts is prevented by enormous diffusion resistance, and this is further confirmed by AIMD simulations. These results provide insightful guidance for developing advanced magnetic catalysts for HCHO oxidation to improve the remediation of air contaminants.
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Affiliation(s)
- Deqiao Li
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Xianfei Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China.
| | - Yi Huang
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China.
| | - Guanru Zhang
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China
| | - Dan Zhou
- College of Environment and Ecology, Chengdu University of Technology, Chengdu 610059, China
| | - Beibei Xiao
- School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
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18
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Single-atom catalysts for thermochemical gas-phase reactions. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Xiang N, Bai Y, Li Q, Han X, Zheng J, Zhao Q, Hou Y, Huang Z. ZIF-67-derived hierarchical hollow Co3O4@CoMn2O4 nanocages for efficient catalytic oxidation of formaldehyde at low temperature. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Chen D, He X, Chen X, Wang Z, Wang X. Bimetallic Au-Ag catalysts in HCHO catalytic oxidation: No synergetic effect? Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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21
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Zhang L, Bao Q, Zhang B, Zhang Y, Wan S, Wang S, Lin J, Xiong H, Mei D, Wang Y. Distinct Role of Surface Hydroxyls in Single-Atom Pt 1/CeO 2 Catalyst for Room-Temperature Formaldehyde Oxidation: Acid-Base Versus Redox. JACS AU 2022; 2:1651-1660. [PMID: 35911462 PMCID: PMC9327081 DOI: 10.1021/jacsau.2c00215] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The development of highly efficient catalysts for room-temperature formaldehyde (HCHO) oxidation is of great interest for indoor air purification. In this work, it was found that the single-atom Pt1/CeO2 catalyst exhibits a remarkable activity with complete removal of HCHO even at 288 K. Combining density functional theory calculations and in situ DRIFTS experiments, it was revealed that the active OlatticeH site generated on CeO2 in the vicinity of Pt2+ via steam treatment plays a key role in the oxidation of HCHO to formate and its further oxidation to CO2. Such involvement of hydroxyls is fundamentally different from that of cofeeding water which dissociates on metal oxide and catalyzes the acid-base-related chemistry. This study provides an important implication for the design and synthesis of supported Pt catalysts with atom efficiency for a very important practical application-room-temperature HCHO oxidation.
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Affiliation(s)
- Lina Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Qianqian Bao
- State
Key Laboratory of Separation Membranes and Membrane Processes, School
of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
| | - Bangjie Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuanbao Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shaolong Wan
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Shuai Wang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jingdong Lin
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Haifeng Xiong
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, College of
Chemistry and Chemical Engineering, Xiamen
University, Xiamen 361005, China
- National
Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Donghai Mei
- State
Key Laboratory of Separation Membranes and Membrane Processes, School
of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
| | - Yong Wang
- Voiland
School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99164, United States
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22
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Yang JN, Yang HH, Niu MS, Zhou H, Yi X, Chang DL, Zhan J, Liu Y. Ultra-light 3D MnO 2-agar network with high and longevous performance for catalytic formaldehyde oxidation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 830:154818. [PMID: 35341871 DOI: 10.1016/j.scitotenv.2022.154818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Under the background of indoor air formaldehyde decontamination, a freestanding ultra-light assembly was fabricated via ice-templating approach starting from MnO2 nanoparticles and environmentally benign agar powder. The 3D composite of agar and MnO2 (AM-3D) was comparatively studied with powdered counterparts (including pure MnO2 and mixture of agar and MnO2) and the 3D-structured agar for formaldehyde oxidation, and their physicochemical properties were examined with XRD, ATR, SEM, XPS, isothermal N2 adsorption, ESR, Raman, CO-TPR and O2-TPD. For the single test of formaldehyde oxidation, the AM-3D catalyst exhibited 62.0%-67.0% removal percentage for ~400 mg/m3 formaldehyde, which did not demonstrate significant advantage over the control samples. However, thanks to the porous 3D agar scaffold with large spatial volume that could promote a rapid gas-phase formaldehyde concentration reduction, and the strong interaction between the dispersed MnO2 particles and agar substrate that could afford a large amount of reactive oxygen species to further oxidize the adsorbed formaldehyde, the AM-3D composite was a much better HCHO-to-CO2 converter and possessed much more advantageous stability for repeated cycles of formaldehyde oxidation: even after ten cycles, there was still 41.7% of formaldehyde removed. Furthermore, the viable sunlight irradiation could easily restore the activity of the used AM-3D catalyst back to the level approaching that of the fresh one. Finally, reaction pathways were put forward via the infrared spectroscopic and ion chromatographic investigations on the surface intermediates of the spent materials.
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Affiliation(s)
- Ji-Ning Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Huan-Huan Yang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Ming-Shuang Niu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Hao Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Xianliang Yi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Da-Lei Chang
- College of Sciences, Shihezi University, Shihezi 832003, China
| | - Jingjing Zhan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China
| | - Yang Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Ocean Science and Technology, Dalian University of Technology, Panjin 124221, China.
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23
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Zhang K, Ding H, Pan W, Mu X, Qiu K, Ma J, Zhao Y, Song J, Zhang Z. Research Progress of a Composite Metal Oxide Catalyst for VOC Degradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9220-9236. [PMID: 35580211 DOI: 10.1021/acs.est.2c02772] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Volatile organic compounds (VOCs) are atmospheric pollutants that have been of concern for researchers in recent years because they are toxic, difficult to remove, and widely sourced and easily cause damage to the environment and human body. Most scholars use low-temperature plasma biological treatment, catalytic oxidation, adsorption, condensation, and recovery techniques to treat then effectively. Among them, catalytic oxidation technology has the advantages of a high catalytic efficiency, low energy consumption, high safety factor, high treatment efficiency, and less secondary pollution; it is currently widely used for VOC degradation technology. In this paper, the catalytic oxidation technology for the degradation of multiple types of VOCs as well as the development of a single metal oxide catalyst have been briefly introduced. We also focus on the research progress of composite metal oxide catalysts for the removal of VOCs by comparing and analyzing the metal component ratio, preparation method, and types of precursors and the catalysts' influence on the catalytic performance. In addition, the reason for catalyst deactivation and a correlation between the chemical state of the catalyst and the electron distribution are discussed. Development of a composite metal oxide catalyst for the catalytic oxidation of VOCs has been proposed.
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Affiliation(s)
- Kai Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Honglei Ding
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Shanghai Power Environmental Protection Engineering Technology Research Center, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Key Laboratory of Environmental Protection Technology for Clean Power Generation, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Weiguo Pan
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Shanghai Power Environmental Protection Engineering Technology Research Center, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
- Key Laboratory of Environmental Protection Technology for Clean Power Generation, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Xiaotian Mu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Kaina Qiu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Junchi Ma
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Yuetong Zhao
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Jie Song
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
| | - Ziyi Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, No. 2588 Changyang Road, Yangpu District, Shanghai 201306, China
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24
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Gold-Based Catalysts for Complete Formaldehyde Oxidation: Insights into the Role of Support Composition. Catalysts 2022. [DOI: 10.3390/catal12070705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Formaldehyde (HCHO) is recognized as one of the most emitted indoor air pollutants with high detrimental effect on human health. Significant research efforts are focused on HCHO removal to meet emission regulations in an effective and economically profitable way. For over three decades, the unique electronic properties and catalytic abilities of nano-gold catalysts continue to be an attractive research area for the catalytic community. Recently, we reported that mechanochemical mixing is a relevant approach to the preparation of Co-Ce mixed oxides with high activity in complete benzene oxidation. A trend of higher surface defectiveness, in particular, oxygen vacancies, caused by close interaction between cobalt oxide and cerium oxide phases, was observed for a mixed oxide composition of 70 wt.% Co3O4 and 30 wt.% CeO2. These results directed further improvement by promotion with gold and optimization of mixed oxide composition, aiming for the development of an efficient catalyst for room temperature HCHO abatement. Support modification with potassium was studied; however, the K addition caused less enhancement of HCHO oxidation activity than expected. This motivated the preparation of new carrier material. In addition to Co3O4-CeO2 mixed metal oxides with preset ratio, γ-Al2O3 intentionally containing 33% boehmite and shortly named Al2O3-b was used for synthesis. Analysis of the role of support composition in HCHO oxidation was based on the characterization of nano-gold catalysts by textural measurements, XRD, HRTEM, XPS, and TPR techniques. Gold supported on mechanochemically treated Co3O4-CeO2-Al2O3-b (50 wt.% Al2O3-b) exhibited superior activity owing to high Ce3+ and Co3+ surface amounts and the most abundant oxygen containing species with enhanced mobility. This catalyst achieved oxidation to CO2 and H2O by 95% HCHO conversion at room temperature and 100% at 40 °C, thus implying the potential of this composition in developing efficient catalytic materials for indoor air purification.
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25
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Soltan WB, Sun J, Wang W, Song Z, Zhao X, Mao Y, Zhang Z. Discovering the key role of MnO 2 and CeO 2 particles in the Fe 2O 3 catalysts for enhancing the catalytic oxidation of VOC: Synergistic effect of the lattice oxygen species and surface-adsorbed oxygen. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 819:152844. [PMID: 35038514 DOI: 10.1016/j.scitotenv.2021.152844] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/08/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Highly active mesoporous Fe-Mn-Ce catalysts with high specific surface area (SBET) were synthesized by a modified precipitation process for catalyzing toluene oxidation. The Fe0.85Mn0.1Ce0.05 catalyst presents richer surface oxygen species (OS), a higher proportion of Mn4+ and Ce4+, a higher concentration of lattice defects and oxygen vacancies, the highest Oads/Olatt ratio, and a superior low-temperature redox property compared with the Fe-Mn binary oxide and Fe2O3 and MnO2 catalysts. The properties contribute to a high catalytic activity to achieve T90% of toluene conversion at 264 °C and 185 °C with a gas hourly space velocity (GHSV) at 180,000 and 20,000 mL/(g∙h), respectively. The introduction of a slight quantity of Ce and Mn onto the Fe2O3 catalyst is the key to enhancing the synergistic effect of the lattice OS and surface-adsorbed oxygen, contributing to the activation oxidation procedure of toluene. In-situ DRIFTS analysis reveals that the rich oxygen vacancy concentration of catalysts accelerates the key steps for the generation and activation of oxidized products. These catalysts with rich oxygen vacancies can efficiently diminish the accumulation of a small number of the intermediary species (phenolate, C6H5-OH) produced during the catalytic oxidation of toluene.
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Affiliation(s)
- Wissem Ben Soltan
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Jing Sun
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Wenlong Wang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Zhanlong Song
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Xiqiang Zhao
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Yanpeng Mao
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Zhichao Zhang
- Shandong Huanwo Environmental Protection Technology Co., ltd., Binzhou, Shandong 251800, China
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26
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Screening promising TM-doped CeO2 monolayer for formaldehyde sensor with high sensitivity and selectivity. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Wang Y, Gao P, Li B, Yin Z, Feng L, Liu Y, Du Z, Zhang L. Enhanced photocatalytic performance of visible-light-driven CuO x/TiO 2-x for degradation of gaseous formaldehyde: Roles of oxygen vacancies and nano copper oxides. CHEMOSPHERE 2022; 291:133007. [PMID: 34826443 DOI: 10.1016/j.chemosphere.2021.133007] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/05/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Photocatalysis is an effective method for the removal of formaldehyde (HCHO), and high-efficiency visible-light-driven photocatalysts were urgently required. Herein, oxygen vacancies (OVs) and nano copper oxides (CuOx) synergistically modified TiO2 (CuOx/TiO2-x) photocatalysts were synthesized by one-step hydrothermal followed by impregnation method. The photocatalytic decomposition of HCHO reached 100% at initial concentration of 180 ppm under relative humidity (RH) = 60% by 0.1g CuOx/TiO2-x in 150 min visible light irradiation. Characterization results explored the complementary effect of OVs and CuOx systematically. The OVs increased the separation efficiency of photogenerated charge carriers and act as adsorption/active sites in HCHO photocatalytic oxidation. The moisture and O2 were adsorbed and actived by OVs to generate reactive oxygen species (ROS). After doped CuOx on the surface of TiO2-x, the photoexcited electrons in Cu2O could transfer to the conduction band (CB) of TiO2-x and the photoexcited electrons of TiO2-x could be captured by Cu nanoparticles. Therefore, more ROS were generated due to the synergistic effect of OVs and CuOx. The In-situ Fourier transform infrared (in-situ FTIR) measurements show the hydroxyl radical (•OH) was the dominant radical in HCHO photocatalytic oxidation, while •O2- could also upgrade the photodegradation efficiency of HCHO. Furthermore, the stability tests showed the degradation efficiency of HCHO still reached 90% after five recycles, indicating that CuOx/TiO2-x nanocomposites displayed a stable and high photoactivity in volatile organic compounds (VOCs) decomposition.
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Affiliation(s)
- Yang Wang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Peng Gao
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Benhang Li
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Ze Yin
- Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Department of Water Resource and Environment, Hebei GEO University, No. 136 Huai'an Road, Shijiazhuang, 050031, Hebei, PR China
| | - Li Feng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China.
| | - Yongze Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Ziwen Du
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China
| | - Liqiu Zhang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing, 100083, China.
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28
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Low-Temperature Oxidation Removal of Formaldehyde Catalyzed by Mn-Containing Mixed-Oxide-Supported Bismuth Oxychloride in Air. Catalysts 2022. [DOI: 10.3390/catal12030262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The Mn-containing mixed-oxide-supported bismuth oxychloride (BiOCl) catalysts were prepared by calcining their corresponding parent hydrotalcite supported BiOCl. The crystal structure of BiOCl was found to be intact during calcination, while significant differences appeared in the chemical state of Mn and the redox capacities of the catalysts before and after calcination. Compared to the hydrotalcite-supported catalysts, the mixed-oxide-supported BiOCl showed much higher catalytic performance in the oxidation removal of formaldehyde due to the synergetic catalysis of more surface oxygen vacancies and higher surface basicity. The complete removal of formaldehyde could be achieved at 70 °C, and the removal efficiency was maintained more than 90% for 21 h. A possible reaction mechanism was also proposed.
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29
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Wang J, Wang P, Wu Z, Yu T, Abudula A, Sun M, Ma X, Guan G. Mesoporous catalysts for catalytic oxidation of volatile organic compounds: preparations, mechanisms and applications. REV CHEM ENG 2022. [DOI: 10.1515/revce-2021-0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Volatile organic compounds (VOCs) are mainly derived from human activities, but they are harmful to the environment and our health. Catalytic oxidation is the most economical and efficient method to convert VOCs into harmless substances of water and carbon dioxide at relatively low temperatures among the existing techniques. Supporting noble metal and/or transition metal oxide catalysts on the porous materials and direct preparation of mesoporous catalysts are two efficient ways to obtain effective catalysts for the catalytic oxidation of VOCs. This review focuses on the preparation methods for noble-metal-based and transition-metal-oxide-based mesoporous catalysts, the reaction mechanisms of the catalytic oxidations of VOCs over them, the catalyst deactivation/regeneration, and the applications of such catalysts for VOCs removal. It is expected to provide guidance for the design, preparation and application of effective mesoporous catalysts with superior activity, high stability and low cost for the VOCs removal at lower temperatures.
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Affiliation(s)
- Jing Wang
- School of Chemical Engineering , Northwest University, International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources; Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy; Shaanxi Research Center of Engineering Technology for Clean Coal Conversion; and Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi , Xi’an 710069 , Shaanxi , China
| | - Peifen Wang
- Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
| | - Zhijun Wu
- Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
| | - Tao Yu
- Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
| | - Abuliti Abudula
- Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
| | - Ming Sun
- School of Chemical Engineering , Northwest University, International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources; Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy; Shaanxi Research Center of Engineering Technology for Clean Coal Conversion; and Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi , Xi’an 710069 , Shaanxi , China
| | - Xiaoxun Ma
- School of Chemical Engineering , Northwest University, International Science & Technology Cooperation Base of MOST for Clean Utilization of Hydrocarbon Resources; Chemical Engineering Research Center of the Ministry of Education for Advanced Use Technology of Shanbei Energy; Shaanxi Research Center of Engineering Technology for Clean Coal Conversion; and Collaborative Innovation Center for Development of Energy and Chemical Industry in Northern Shaanxi , Xi’an 710069 , Shaanxi , China
| | - Guoqing Guan
- Graduate School of Science and Technology , Hirosaki University , 1-Bunkyocho , Hirosaki 036-8560 , Aomori , Japan
- Energy Conversion Engineering Laboratory , Institute of Regional Innovation (IRI), Hirosaki University , 2-1-3 Matsubara , Aomori 030-0813 , Japan
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30
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Dong N, Chen M, Ye Q, Zhang D, Dai H. An investigation on catalytic performance and reaction mechanisms of Fe/OMS-2 for the oxidation of carbon monoxide, ethyl acetate, and toluene. J Environ Sci (China) 2022; 112:258-268. [PMID: 34955210 DOI: 10.1016/j.jes.2021.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/08/2021] [Accepted: 05/08/2021] [Indexed: 06/14/2023]
Abstract
The octahedral molecular sieve (OMS-2)-supported Fe (xFe/OMS-2: x = 1, 3, 5, and 10) catalysts were prepared using the pre-incorporation method. Physicochemical properties of the as-synthesized materials were characterized by means of various techniques, and their catalytic activities for CO, ethyl acetate, and toluene oxidation were evaluated. Among all of the samples, performed the best, with the reaction temperature required to achieve 90% conversion (T90%) being 160°C for CO oxidation, 210°C for ethyl acetate oxidation, and 285°C for toluene oxidation. Such a good catalytic performance of 5Fe/OMS-2 was associated with its high (Mn3+ + Mn2+) content and adsorbed oxygen species concentration, and good low-temperature reducibility and lattice oxygen mobility as well as strong interaction between Fe and OMS-2. In addition, catalytic mechanisms of the oxidation of three pollutants over the 5Fe/OMS-2 catalyst were also studied. It was found that CO, ethyl acetate or toluene was first adsorbed, then the related intermediates were formed, and finally the formed intermediates were completely converted into CO2 and H2O.
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Affiliation(s)
- Ning Dong
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Mengyue Chen
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Qing Ye
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
| | - Dan Zhang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Beijing on Regional Air Pollution Control, Key Laboratory of Advanced Functional Materials, Education Ministry of China, and Laboratory of Catalysis Chemistry and Nanoscience, Department of Environmental Chemical Engineering, School of Environmental and Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
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31
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Ding J, Liu J, Yang Y, Zhao L, Yu Y. Understanding A-site tuning effect on formaldehyde catalytic oxidation over La-Mn perovskite catalysts. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126931. [PMID: 34425429 DOI: 10.1016/j.jhazmat.2021.126931] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/13/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
A combination study of density functional theory (DFT) calculation and microkinetic analysis was carried out to investigate A-site tuning effect on formaldehyde (HCHO) oxidation over La-Mn perovskite catalysts (A = Sr, Ag, and Sn). The oxygen mobility of A-doped LaMnO3 catalysts and reaction mechanism of HCHO oxidation on catalyst surfaces were investigated. The microkinetic simulation was performed to quantitatively determine the activity of catalysts toward the HCHO catalytic oxidation. The results indicated that A-site tuning weakens the binding energy of Mn-O bond of LaMnO3 surface and facilitates the formation of surface oxygen vacancy. The presence of dopants can significantly reduce the activation energy of O2 dissociation, which ascribes to the facilitation of electron transfer between oxygen species and catalyst surfaces. The reaction cycle of HCHO oxidation contains seven steps: HCHO adsorption, HCHO* dehydrogenation, CHO* dehydrogenation, CO2 desorption, H2O desorption, O2 adsorption and oxygen vacancy recovery. The dopants promote HCHO adsorption and reduce the activation energy of HCHO oxidation. Two elementary steps control the overall reaction rate of HCHO oxidation. CHO* dehydrogenation step has the largest degree of rate control value at low temperature and O2 adsorption step controls the whole reaction at high temperature.
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Affiliation(s)
- Junyan Ding
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jing Liu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Yingju Yang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Liming Zhao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yingni Yu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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32
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Li K, Ji J, Gan Y, Huang H. Regulation of mixed Ag valence state by non-thermal plasma for complete oxidation of formaldehyde. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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33
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Ling J, Dong Y, Cao P, Wang Y, Li Y. Preparation of Mn-Fe Oxide by a Hydrolysis-Driven Redox Method and Its Application in Formaldehyde Oxidation. ACS OMEGA 2021; 6:23274-23280. [PMID: 34549127 PMCID: PMC8444290 DOI: 10.1021/acsomega.1c02994] [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: 06/08/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Homogeneous distribution of Mn-Fe oxides (xMn1Fe) with different Mn/Fe ratios was synthesized by a hydrolysis-driven redox method, and their catalytic activities in HCHO oxidation were investigated. The results showed that HCHO conversion was significantly improved after doping iron due to the synergistic effect between manganese and iron. The 5Mn1Fe catalyst exhibits excellent catalytic activity, achieving >90% HCHO conversion at 80 °C and nearly 100% conversion at 100 °C. The physicochemical properties of catalysts were characterized by BET, XRD, H2-TPR, O2-TPD, and XPS techniques. Experimental results revealed that the introduction of Fe into MnO x resulted in a large surface area, a high ratio of Mn4+, abundant lattice oxygen species and oxygen vacancy, and uniform distribution of Mn and Fe, thus facilitating the oxidation of HCHO to CO2 and H2O.
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Affiliation(s)
- Jie Ling
- College
of Coal and Chemical Industry, Shaanxi Energy
Institute, Hsienyang 712000, China
| | - Yaxin Dong
- College
of Chemistry and Chemical Engineering, Xi’an
Shiyou University, Xi’an 710065, China
| | - Pan Cao
- College
of Chemistry and Chemical Engineering, Xi’an
Shiyou University, Xi’an 710065, China
| | - Yixiang Wang
- College
of Chemistry and Chemical Engineering, Xi’an
Shiyou University, Xi’an 710065, China
| | - YingYing Li
- College
of Chemistry and Chemical Engineering, Xi’an
Shiyou University, Xi’an 710065, China
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34
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Lin Z, He M, Liu Y, Meng M, Cao Z, Huang S, Chen C, Deng H. Effect of calcination temperature on the structural and formaldehyde removal activity of Mn/Fe2O3 catalysts. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04470-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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35
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Chen J, Tang H, Huang M, Yan Y, Zhang J, Liu H, Zhang J, Wang G, Wang R. Surface Lattice Oxygen Activation by Nitrogen-Doped Manganese Dioxide as an Effective and Longevous Catalyst for Indoor HCHO Decomposition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:26960-26970. [PMID: 34077203 DOI: 10.1021/acsami.1c04369] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Oxygen vacancy plays an important role in catalytic oxidation of formaldehyde (HCHO), but the inherent drawback of its thermodynamic instability causes the deactivation of catalysts. Hence, improving the thermodynamic stability of oxygen vacancy is a crux during HCHO oxidation. Here, a novel and simple nitrogen doping of MnO2/C catalyst is designed for HCHO oxidation at room temperature. The surface lattice oxygen of MnO2 will be activated by nitrogen-doping, which acts as active sites for HCHO oxidation and solves the thermodynamic instability issue of oxygen vacancy. Furthermore, carbon is doped with nitrogen to promote electron transfer and accelerate the HCHO oxidation process. Therefore, the catalytic activity and stability of the catalyst can be significantly promoted, which can completely remove ∼1 ppm HCHO in the tank within 3 h, and remains highly active after 5 cycles at room temperature (RH = 55%). In addition, the excellent removal performance over the prepared catalyst is also attributed to abundant surface oxygen species, amorphous crystallinity, and low reduction temperature. In situ diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) and density functional theory (DFT) calculations reveal the reaction mechanism of HCHO. This strategy provides crucial enlightenment for designing novel Mn-based catalysts for application in the HCHO oxidation field.
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Affiliation(s)
- Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, China
| | - Haiyan Tang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Meng Huang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yong Yan
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jin Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Honggang Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jie Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
- Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu 610065, China
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36
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Xu D, Zhu R, Xie D, Xie Y, Wu H, Mei Y. Amine-Containing Resin for Coating with Excellent Formaldehyde Removal Performance. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dubing Xu
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Rui Zhu
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Delong Xie
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Yuhui Xie
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Hua Wu
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich 8093, Switzerland
| | - Yi Mei
- Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials, School of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, China
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37
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The Catalytic Oxidation of Formaldehyde by FeOx-MnO2-CeO2 Catalyst: Effect of Iron Modification. Catalysts 2021. [DOI: 10.3390/catal11050555] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A series of FeOx-MnO2-CeO2 catalysts were synthesized by the surfactant-templated coprecipitation method and applied for HCHO removal. The influence of Fe/Mn/Ce molar ratio on the catalytic performance was investigated, and the FeOx-MnO2-CeO2 catalyst exhibited excellent catalytic activity, with complete HCHO conversion at low temperatures (40 °C) when the molar ratio of Fe/Mn/Ce was 2/5/5. The catalysts were characterized by N2 adsorption and desorption, XRD, H2-TPR, O2-TPD and XPS techniques to illustrate their structure–activity relationships. The result revealed that the introduction of FeOx into MnO2-CeO2 formed a strong interaction between FeOx-MnO2-CeO2, which facilitated the improved dispersion of MnO2-CeO2, subsequently increasing the surface area and aiding pore development. This promotion effect of Fe enhanced the reducibility and produced abundant surface-active oxygen. In addition, a great number of Oα is beneficial to the intermediate decomposition, whereas the existence of Ce3+ favors the formation of oxygen vacancies on the surface of the catalyst, all of which contributed to HCHO oxidation at low temperatures.
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38
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Wang Y, Huang B, Xu J, Li N, Qu Z. Hydroxyl Groups Promoted Ag Dispersion and Excellent Performance of Ag/Al2O3 Catalyst for HCHO Oxidation. Catal Letters 2021. [DOI: 10.1007/s10562-020-03464-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Qi L, Le Y, Wang C, Lei R, Wu T. Hierarchical nanostructures self-assembled from δ-MnO 2 ultrathin nanosheets and Mn 3O 4 octahedrons for efficient room-temperature HCHO oxidation. NEW J CHEM 2021. [DOI: 10.1039/d0nj05515h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Self-assembling ultrathin active δ-MnO2 nanosheets and Mn3O4 octahedrons into hierarchical texture enhances room-temperature formaldehyde oxidation at a low-level of Pt.
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Affiliation(s)
- Lifang Qi
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Yao Le
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Chao Wang
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Rui Lei
- College of Architecture and Materials Engineering
- Hubei University of Education
- Wuhan 430205
- P. R. China
- Institute of Materials Research and Engineering (IMRE)
| | - Tian Wu
- Institute of Materials Research and Engineering (IMRE)
- Hubei University of Education
- Wuhan
- P. R. China
- College of Chemistry and Life Science
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40
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Zhao H, Tang J, Li Z, Yang J, Liu H, Wang L, Cui Y, Zhan W, Guo Y, Guo Y. Nickel oxide regulating surface oxygen to promote formaldehyde oxidation on manganese oxide catalysts. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01490k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface oxygen of MnOx is effectively regulated by NiO addition, and the amount and reactivity of surface oxygen contributed to the activity of the NiO–MnOx catalyst, while surface oxygen mobility contributed to reaction stability.
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Affiliation(s)
- Hailin Zhao
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jie Tang
- Technology Department, Shanghai HuaYi New Material Co. Ltd., 139 Pugong Road, Shanghai, 201507, P. R. China
| | - Zengyuan Li
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jie Yang
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Hao Liu
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Li Wang
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yao Cui
- Technology Department, Shanghai HuaYi New Material Co. Ltd., 139 Pugong Road, Shanghai, 201507, P. R. China
| | - Wangcheng Zhan
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yanglong Guo
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yun Guo
- Research Institute of Industrial Catalysis, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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Li L, Wang L, Zhao X, Wei T, Wang H, Li X, Gu X, Yan N, Li L, Xiao H. Excellent Low-Temperature Formaldehyde Decomposition Performance over Pt Nanoparticles Directly Loaded on Cellulose Triacetate. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Lei Wang
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xuejuan Zhao
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China
| | - Tongtong Wei
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Haibo Wang
- College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaobao Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoli Gu
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Ning Yan
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto M5S 3E5, Canada
| | - Licheng Li
- Innovation Research Center of Lignocellulosic Functional Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton E3B 5A3, New Brunswick, Canada
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Dong N, Ye Q, Chen M, Cheng S, Kang T, Dai H. Sodium-treated sepiolite-supported transition metal (Cu, Fe, Ni, Mn, or Co) catalysts for HCHO oxidation. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63599-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cui W, Liu L, Yang J, Tan N. Effect of preparation method on the catalytic performance of formaldehyde oxidation over octahedral Fe 3O 4 microcrystals supported Pt catalysts. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1637752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Weiyi Cui
- Key Laboratory of Chemical Cleaner Production Technology of Jilin Province, Jilin Institute of Chemical Technology, Jilin, China
| | - Ling Liu
- Institute of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin, China
| | - Jiajun Yang
- Institute of Petrochemical Technology, Jilin Institute of Chemical Technology, Jilin, China
| | - Naidi Tan
- Key Laboratory of Chemical Cleaner Production Technology of Jilin Province, Jilin Institute of Chemical Technology, Jilin, China
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44
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Size effect of γ-Al2O3 supports on the catalytic performance of Pd/γ-Al2O3 catalysts for HCHO oxidation. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Wang N, Xu Z, Luo T, Yan Z, Jin M, Shi L. Pt Anchored on Mn(Co)CO
3
/MnCo
2
O
4
Heterostructure for Complete Oxidation of Formaldehyde at Room Temperature. ChemistrySelect 2020. [DOI: 10.1002/slct.202002870] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nenghuan Wang
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Zhihua Xu
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
- School of Chemistry and Chemical Engineering Wuhan University of Science and Technology Wuhan 430081 China
| | - Tingting Luo
- Materials Analysis Center Wuhan University of Technology Wuhan 430070 China
| | - Zhaoxiong Yan
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Mei Jin
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
| | - Ling Shi
- Hubei Key Laboratory of Industrial Fume and Dust Pollution Control and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan University Wuhan 430056 China
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Peng S, Yang X, Strong J, Sarkar B, Jiang Q, Peng F, Liu D, Wang H. MnO 2-decorated N-doped carbon nanotube with boosted activity for low-temperature oxidation of formaldehyde. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122750. [PMID: 32339880 DOI: 10.1016/j.jhazmat.2020.122750] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/11/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Low-temperature oxidative degradation of formaldehyde (HCHO) using non-noble metal catalysts is challenging. Herein, novel manganese dioxide (MnO2)/N-doped carbon nanotubes (NCNT) composites were prepared with varying MnO2 content. The surface properties and morphologies were analyzed using X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and transmission electron microscope (TEM). Comparing with MnO2/carbon nanotubes (CNTs) catalyst, the 40% MnO2/NCNT exhibited much better activity and selectivity for HCHO oxidation, mineralizing 95% of HCHO (at 100 ppm) into CO2 at 30 °C at a gas hourly space velocity (GHSV) of 30,000 mL h-1 g-1. Density functional theory (DFT) calculation was used to analyze the difference in the catalytic activity of MnO2 with CNTs and NCNT carrier. It was confirmed that the oxygen on NCNT was more active than CNTs, which facilitated the regeneration of MnO2. This resulted in remarkably boosted activity for HCHO oxidation. The present work thus exploited an inexpensive approach to enhance the catalytic activity of transition metal oxides via depositing them on a suitable support.
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Affiliation(s)
- Shuai Peng
- Hubei Provincial Engineering Laboratory for Clean Production and High Value Utilization of Bio-Based Textile Materials, Wuhan Textile University, Wuhan, 430073, China
| | - Xixian Yang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China.
| | - James Strong
- School of Biology and Environmental Science, Centre for Agriculture and the Bioeconomy, Queensland University of Technology, GPO Box 2432, 2 George St, Brisbane, QLD 4001, Australia
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Qiang Jiang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510000, China
| | - Feng Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510000, China
| | - Defei Liu
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Hailong Wang
- Biochar Engineering Technology Research Center of Guangdong Province, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.
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Aleksandrova VA, Klicheva OB, Futoryanskaya AM, Rashidova SS. Nanocomposites of Silver and N-Carboxymethylchitosan Bombyx mori. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20050016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Dong N, Fu J, Ye Q, Chen M, Fu Z, Dai H. Effect of Preparation Method on Catalytic Performance of Ag/OMS-2 for the Oxidation of Ethyl Acetate and Formaldehyde. CATALYSIS SURVEYS FROM ASIA 2020. [DOI: 10.1007/s10563-020-09311-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Eom H, Hwang IH, Lee DY, Lee SM, Kim SS. Preparation of Liquid-Phase Reduction Method-Based Pt/TiO 2 Catalyst and Reaction Characteristics during HCHO Room-Temperature Oxidation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hanki Eom
- Department of Environmental Energy Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - In-hyuck Hwang
- Department of Environmental Energy Engineering, Graduate School, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - Dong Yoon Lee
- Department of Environmental Energy Engineering, Graduate School, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - Sang Moon Lee
- Department of Environmental Energy Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - Sung Su Kim
- Department of Environmental Energy Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
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Martínez-Barrera B, Gutiérrez-Arzaluz M, Montoya de la Fuente J, Romero-Romo M, Torres-Rodríguez M. Formaldehyde CWO with gold nanoparticles in a forced through flow catalytic-membrane reactor. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.06.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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