1
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Wu X, Zhu X, Qin Y, Mei T, Min X, Guo M, Jia J, Sun T. Selective recovery of manganese from spent ternary lithium-ion batteries for efficient catalytic oxidation of VOCs: Unveiling the mechanism of activity Enhancement in recycled catalysts. ENVIRONMENTAL RESEARCH 2024; 262:119865. [PMID: 39216735 DOI: 10.1016/j.envres.2024.119865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/09/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
With the widespread application of ternary lithium-ion batteries (TLBs) in various fields, the disposal of spent TLBs has become a globally recognized issue. This study proposes a novel method for reutilizing metal resources from TLBs. Through selective oxidation, manganese in a leaching solution of TLBs was converted into MnO2 with α, γ, and δ crystal phases (referred to as T-MnO2) for catalytic oxidation of volatile organic compounds (VOCs), while efficiently separating manganese from high-value metals such as nickel, cobalt, and lithium, achieving a manganese recovery rate of 99.99%. Compared to similar MnO2 prepared from pure materials, T-MnO2 exhibited superior degradation performance for toluene and chlorobenzene, with T90 decreasing by around 30 °C. The acidic synthesis environment provided by the leaching solution and the doping of trace metals altered the physicochemical properties of T-MnO2, such as increased specific surface area, elevated surface manganese valence, and improved redox performance and oxygen vacancy properties, enhancing its catalytic oxidation capacity. Furthermore, the degradation pathway of toluene on T-γ-MnO2 was inferred using thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) and in-situ DRIFTs. This study provides a novel approach for recycling spent TLBs and treating VOCs catalytically.
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Affiliation(s)
- Xueqian Wu
- School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China
| | - Xuewen Zhu
- School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China
| | - Yao Qin
- School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China
| | - Tianhong Mei
- School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China
| | - Xin Min
- School of Resources and Environmental Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, 213001, PR China.
| | - Mingming Guo
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, PR China.
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, PR China
| | - Tonghua Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, PR China
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2
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Fang Y, Yang J, Pan C. The Surface/Interface Modulation of Platinum Group Metal (PGM)-Free Catalysts for VOCs and CO Catalytic Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:37379-37389. [PMID: 38981038 DOI: 10.1021/acsami.4c08018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Effective management of volatile organic compounds (VOCs) and carbon monoxide (CO) is critical to human health and the ecological environment. Catalytic oxidation is one of the most promising technologies for achieving efficient VOCs and CO emission control. Platinum group metal (PGM)-free catalysts are recently receiving sustainable attention in catalyzing VOCs and CO removal due to their low cost, superior catalytic activity, and excellent stability, but PGM-free catalysts face challenges in low-temperature catalytic efficiency. In this mini-review, starting with discussing the catalytic mechanism of VOCs and CO oxidation, we summarize the surface/interface modulation strategies of PGM-free catalysts to promote oxygen and VOCs/CO molecule activation for enhanced low-temperature oxidation activity, including oxygen vacancy engineering, heteroatom doping, surface acidity modification, and active interface construction. We highlight the currently remaining challenges and prospects of advanced PGM-free catalyst development for highly efficient VOCs and CO emission control in practical applications.
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Affiliation(s)
- Yarong Fang
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ji Yang
- Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Chuanqi Pan
- Henan Academy of Sciences, Zhengzhou 450046, P. R. China
- Institute of Chemistry, Henan Academy of Sciences, Zhengzhou 450002, P. R. China
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3
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Shan R, Sheng Z, Hu S, Xiao H, Zhang Y, Zhang J, Wang L, Zhang C, Li J. Enhancing oxidation reaction over Pt-MnO 2 catalyst by activation of surface oxygen. J Environ Sci (China) 2023; 134:117-125. [PMID: 37673527 DOI: 10.1016/j.jes.2023.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/24/2022] [Accepted: 01/05/2023] [Indexed: 09/08/2023]
Abstract
Formaldehyde (HCHO) and carbon monoxide (CO) are both common air pollutants and hazardous to human body. It is imperative to develop the catalyst that is able to efficiently remove these pollutants. In this work, we activated Pt-MnO2 under different conditions for highly active oxidation of HCHO and CO, and the catalyst activated under CO displayed superior performance. A suite of complementary characterizations revealed that the catalyst activated with CO created the highly dispersed Pt nanoparticles to maintain a more positively charged state of Pt, which appropriately weakens the Mn-O bonding strength in the adjacent region of Pt for efficient supply of active oxygen during the reaction. Compared with other catalysts activated under different conditions, the CO-activated Pt-MnO2 displays much higher activity for oxidation of HCHO and CO. This research contributes to elucidating the mechanism for regulating the oxidation activity of Pt-based catalyst.
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Affiliation(s)
- Ruoting Shan
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Zhenteng Sheng
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China
| | - Shuo Hu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Hongfei Xiao
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yuhua Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China
| | - Jianghao Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Li Wang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China.
| | - Changbin Zhang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jinlin Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central Minzu University, Wuhan 430074, China.
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4
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Liu Y, Zhu W, Zhang W, An Z, Liu J, Liu L. Thermally Inducing Viscous Fluids to Generate Co-Based Perovskites Enriched with Active Species for the Removal of VOCs. Inorg Chem 2023; 62:19366-19374. [PMID: 37948416 DOI: 10.1021/acs.inorgchem.3c03385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Various Co-based perovskites are synthesized through thermally driving viscous fluids. In this process, rare earth salts, cobalt salts, and citric acid do not require homogeneous mixing but only need to be heated until they melt into a molten viscous slurry. The physicochemical properties of cobalt-based perovskites were examined using techniques such as X-ray diffraction (XRD), electron paramagnetic resonance (EPR), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-Mapping-EDS), X-ray photoelectron spectroscopy (XPS), hydrogen temperature-programmed reduction (H2-TPR), oxygen temperature-programmed desorption (O2-TPD), and N2 adsorption-desorption. The results indicate that the surface-active species can be controlled by altering the A-site elements of cobalt-based perovskites. All catalysts synthesized through the thermal treatment of viscous mixtures exhibited a low activation temperature and a low apparent activation energy for the catalytic oxidation of toluene. Among all cobalt-based perovskites, LaCoO3 demonstrated the most outstanding catalytic activity, primarily attributed to its capacity to expose a larger number of surface-active sites and oxygen species, as well as its superior reducibility. Furthermore, the formation process of optimal LaCoO3 was monitored using thermogravimetric analysis-differential scanning calorimetry (TGA-DSC), and the byproducts of the low-temperature catalytic oxidation of toluene by the catalyst were identified using gas chromatography-mass spectrometry (GC-MS). The possible mechanism of toluene oxidation was inferred by in situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS). Moreover, LaCoO3 exhibits a predominant resistance to high-temperature hydrothermal conditions. This work provides a scalable and innovative approach to fabricating exceptionally effective catalysts for the efficient purification of VOCs.
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Affiliation(s)
- Yuwei Liu
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
| | - Weili Zhu
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
| | - Wenjing Zhang
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
| | - Zeyao An
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
| | - Jingyin Liu
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
| | - Lizhong Liu
- School of Chemistry and Chemical Engineering, Nantong University, 9, Seyuan Road, Nantong 226019, Jiangsu, P. R. China
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5
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Li X, Cheng H. Mn-modified biochars for efficient adsorption and degradation of cephalexin: Insight into the enhanced redox reactivity. WATER RESEARCH 2023; 243:120368. [PMID: 37494743 DOI: 10.1016/j.watres.2023.120368] [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: 04/26/2023] [Revised: 06/24/2023] [Accepted: 07/14/2023] [Indexed: 07/28/2023]
Abstract
Mn-modified biochars (BCs) were developed by pre-treatment of feedstock (MBCs) or post-modification of biochar (BCM), for simultaneous adsorption and degradation of a model pollutant, cephalexin. The apparent removal rates of cephalexin in the presence of MBCs (2.49 - 6.39 × 10-2 h-1) and BCM (13.3 × 10-3 h-1) were significantly higher than that in the presence of biochar prepared under similar conditions (4.2 × 10-3 h-1). While the •OH generated from the activation of dissolved O2 by the persistent free radicals (PFRs) and phenolic -OH on BC could cause degradation of cephalexin, its removal was drastically enhanced through direct oxidation by the MnOx and related Mn species on Mn-modified BCs. The removal of cephalexin by MBCs decreased as the solution pH was raised from 5.0 to 9.0, which supports the critical role played by Mn3O4 in its oxidation. Removal of cephalexin in the presence of MBCs and Mn3O4 was enhanced with the introduction of Mn(II) ions, suggesting that the Mn3O4 present on MBCs facilitates the re-oxidation of Mn(II) to highly reactive Mn(III). While MnO2 anchored on BCM also enhanced the cephalexin oxidation, the active sites of BC and MnO2 were partially destroyed during post-modification of BC, compromising the redox cycling of Mn(II)/Mn(III) and the generation of •OH. As a result, the performance of BCM in oxidizing cephalexin was inferior to that of MBCs. These findings shed new light on the development of environmentally benign sorbents capable of simultaneously adsorbing and oxidizing organic pollutants.
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Affiliation(s)
- Xian Li
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Hefa Cheng
- MOE Key Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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6
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Chen Y, Chen R, Chang X, Yan J, Gu Y, Xi S, Sun P, Dong X. Degradation of Sodium Acetate by Catalytic Ozonation Coupled with a Mn-Functionalized Fly Ash: Reaction Parameters and Mechanism. TOXICS 2023; 11:700. [PMID: 37624205 PMCID: PMC10457793 DOI: 10.3390/toxics11080700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Supported ozone catalysts usually take alumina, activated carbon, mesoporous molecular sieve, graphene, etc. as the carrier for loading metal oxide via the impregnation method, sol-gel method and precipitation method. In this work, a Mn-modified fly ash catalyst was synthesized to reduce the consumption and high unit price of traditional catalyst carriers like alumina. As a solid waste discharged from coal-fired power plants fueled by coal, fly ash also has porous spherical fine particles with constant surface area and activity, abd is expected to be applied as the main component in the synthesis of ozone catalyst. After the pretreatment process and modification with MnOx, the obtained Mn-modified fly ash exhibited stronger specific surface area and porosity combined with considerable ozone catalytic performance. We used sodium acetate as the contaminant probe, which is difficult to directly decompose with ozone as the end product of ozone oxidation, to evaluate the performance of this Mn-modified fly. It was found that ozone molecules can be transformed to generate ·OH, ·O2- and 1O2 for the further oxidation of sodium acetate. The oxygen vacancy produced via Mn modification plays a crucial role in the adsorption and excitation of ozone. This work demonstrates that fly ash, as an industrial waste, can be synthesized as a potential industrial catalyst with stable physical and chemical properties, a simple preparation method and low costs.
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Affiliation(s)
- Yaoji Chen
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., 2159-1 Yuhangtang Road, Hangzhou 311199, China; (Y.C.)
| | - Ruifu Chen
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Xinglan Chang
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., 2159-1 Yuhangtang Road, Hangzhou 311199, China; (Y.C.)
| | - Jingying Yan
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., 2159-1 Yuhangtang Road, Hangzhou 311199, China; (Y.C.)
| | - Yajie Gu
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., 2159-1 Yuhangtang Road, Hangzhou 311199, China; (Y.C.)
| | - Shuang Xi
- Zhejiang Tiandi Environmental Protection Technology Co., Ltd., 2159-1 Yuhangtang Road, Hangzhou 311199, China; (Y.C.)
| | - Pengfei Sun
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Xiaoping Dong
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Zone, Hangzhou 310018, China
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7
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Quan F, Wu B, Guo Y, Zhang X, Shen W, Jia F, Liu X, Ai Z, Zhang L. Electrochemical removal of gaseous benzene using a flow-through reactor with efficient and ultra-stable titanium suboxide/titanium-foam anode at ambient temperature. J Colloid Interface Sci 2023; 645:533-541. [PMID: 37163799 DOI: 10.1016/j.jcis.2023.04.160] [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: 02/15/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/12/2023]
Abstract
Catalytic oxidation technology is currently considered as a feasible approach to degrade and mineralize volatile organic compounds (VOCs). However, it is still challenging to realize efficient removal of VOCs through catalytic oxidation at room temperature. In our study, a novel flow-through electrocatalytic reactor was designed, composed of porous solid-electrolyte, gas-permeable titanium sub-oxides/titanium-foam (TiSO/Ti-foam) as anode and platinum coated titanium foam (Pt/Ti-foam) as cathode. This device could oxidize nearly 100% of benzene (10 ppm) to carbon dioxide at a current density of 1.2 mA/cm2 under room temperature. More importantly, the device maintained excellent stability over 1000 h. Mechanism of benzene mineralization was discussed. Hydroxyl radicals generated on the TiSO/Ti-foam anode played a crucial role in the oxidation of benzene. This study provides a promising prototype of the electrochemical air purifier, and may find its application in domestic and industrial air pollution control.
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Affiliation(s)
- Fengjiao Quan
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China; College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Bin Wu
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Yuxiao Guo
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Xu Zhang
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Wenjuan Shen
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China
| | - Falong Jia
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China.
| | - Xiao Liu
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China.
| | - Zhihui Ai
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Lizhi Zhang
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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8
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Tran GS, Vo TG, Chiang CY. Operando Revealing the Crystal Phase Transformation and Electrocatalytic Activity Correlation of MnO 2 toward Glycerol Electrooxidation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:22662-22671. [PMID: 37096961 DOI: 10.1021/acsami.3c00857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In this work, we report for the first time a comprehensive operando investigation of the intricate correlation between dynamic phase evolution and glycerol electrooxidation reaction (GEOR) performance across three primary MnO2 crystallographic phases (α-, β-, and γ-MnO2). The results showed that all three electrocatalysts exhibited comparable selectivity toward three-carbon products (∼90%), but γ-MnO2 exhibited superior performance, with a low onset potential of ∼1.45 VRHE, the highest current density of ∼1.9 mA cm-2 at 1.85 VRHE, and reasonable stability. Operando Raman spectroscopy revealed the potential-induced surface reconstruction of different MnO2 structures from which a correlation among the applied potential, electrocatalytic activity, and product distribution was identified. The higher the applied potential, the greater conversion from the original structure to δ-MnO2, resulting in lower C-C cleavage and higher 3C product selectivity. This study not only provides a systematic understanding of structure-controlled electrocatalytic activity for high selectivity toward 3C products of MnO2 but also contributes to the development of a non-noble and environmentally friendly catalyst for valorizing glycerol.
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Affiliation(s)
- Giang-Son Tran
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
| | - Truong-Giang Vo
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Singapore 627833 Singapore
| | - Chia-Ying Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan
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9
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Zhou H, Zeng Y, Low Z, Zhang F, Zhong Z, Xing W. Core-dual-shell structure MnO2@Co–C@SiO2 nanofiber membrane for efficient indoor air cleaning. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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10
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Zhang M, Li G, Li Q, Chen J, Elimian EA, Jia H, He H. In Situ Construction of Manganese Oxide Photothermocatalysts for the Deep Removal of Toluene by Highly Utilizing Sunlight Energy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:4286-4297. [PMID: 36857121 DOI: 10.1021/acs.est.2c09136] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The alternative use of electric energy by renewable energy to supply power for catalytic oxidation of pollutants is a sustainable technology, requiring a competent catalyst to realize efficient utilization of light and drive the catalytic reaction. Herein, in situ-synthesized manganese oxide heterostructure composites are developed through solvothermal reduction and subsequent calcination of amorphous manganese oxide (AMO). 95% of toluene conversion and 80% of CO2 mineralization were achieved over amorphous manganese oxide calcined at 250 °C (AMO-250) under light irradiation, and catalyst stability was maintained for at least 40 h. Highly utilization of light energy, uniformly dispersed nanoparticles, large specific surface area, improved metal reducibility, and oxygen desorption and migration ability at low temperature contribute to the good catalytic oxidation activity of AMO-250. Light activated more lattice oxygen to participate in the reaction via the Mars-van Krevelen (MvK) mechanism, and traditional e--h+ photocatalytic behavior exists over the AMO-250 heterostructure composite as an auxiliary degradation path. The reaction pathways of photothermocatalysis and thermocatalysis are close, except for the emergence of different copolymers, where light enhances the deep conversion of intermediates. A proof-of-concept study under natural sunlight has confirmed the feasibility of practical application in the photothermocatalytic degradation of pollutants.
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Affiliation(s)
- Meng Zhang
- Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guanghui Li
- Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- College of Environment and Safety Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiang Li
- Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Chen
- Xiamen Institute of Rare-earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ehiaghe Agbovhimen Elimian
- Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham, Ningbo, Zhejiang 315100, China
| | - Hongpeng Jia
- Xiamen Key Laboratory of Materials for Gaseous Pollutant Control, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong He
- CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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11
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Li J, Zhang R, Liu Y, Sun T, Jia J, Guo M. Enhanced catalytic activity of toluene oxidation over in-situ prepared Mn3O4-Fe2O3 with acid-etching treatment. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2022.106581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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12
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Tan B, Huo Z, Sun L, Ren L, Zhao P, Feng N, Wan H, Guan G. Ionic liquid-modulated synthesis of MnO2 nanowires for promoting propane combustion: Microstructure engineering and regulation mechanism. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Catalytic reduction of NO and oxidation of dichloroethane over α-MnO2 catalysts: properties-reactivity relationship. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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14
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Wang H, Sun S, Nie L, Zhang Z, Li W, Hao Z. A review of whole-process control of industrial volatile organic compounds in China. J Environ Sci (China) 2023; 123:127-139. [PMID: 36521978 DOI: 10.1016/j.jes.2022.02.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 06/17/2023]
Abstract
Volatile organic compounds (VOCs) play an important role in the formation of ground-level ozone and secondary organic aerosol (SOA), and they have been key issues in current air pollution prevention and control in China. Considerable attention has been paid to industrial activities due to their large and relatively complex VOCs emissions. The present research aims to provide a comprehensive review on whole-process control of industrial VOCs, which mainly includes source reduction, collection enhancement and end-pipe treatments. Lower VOCs materials including water-borne ones are the keys to source substitution in industries related to coating and solvent usage, leak detection and repair (LDAR) should be regarded as an efficient means of source reduction in refining, petrochemical and other chemical industries. Several types of VOCs collection methods such as gas-collecting hoods, airtight partitions and others are discussed, and airtight collection at negative pressure yields the best collection efficiency. Current end-pipe treatments like UV oxidation, low-temperature plasma, activated carbon adsorption, combustion, biodegradation, and adsorption-combustion are discussed in detail. Finally, several recommendations are made for future advanced treatment and policy development in industrial VOCs emission control.
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Affiliation(s)
- Hailin Wang
- Beijing Key Laboratory for Urban Atmospheric VOCs Pollution Control and Technology Application, Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China
| | - Shumei Sun
- College of Resources Environment and Tourism, Capital Normal University, Beijing 100048, China
| | - Lei Nie
- Beijing Key Laboratory for Urban Atmospheric VOCs Pollution Control and Technology Application, Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China
| | - Zhongshen Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China.
| | - Wenpeng Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China
| | - Zhengping Hao
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences, Beijing 101408, China.
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15
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Catalytic Degradation of Toluene over MnO2/LaMnO3: Effect of Phase Type of MnO2 on Activity. Catalysts 2022. [DOI: 10.3390/catal12121666] [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
Series of α, β, γ, δ type MnO2 supported on LaMnO3 perovskite was developed by a one-pot synthesis route. Compared with α-MnO2, β-MnO2, γ-MnO2, δ-MnO2 and LaMnO3 oxides, all MnO2/LaMnO3 showed promotional catalytic performance for toluene degradation. Among them, α-MnO2/LaMnO3 holds the best active and mineralization efficiency. By the analysis of N2 adsorption-desorption, XPS and H2-TPR, it can be inferred that the improved activity should be ascribed to the higher proportion of lattice oxygen, better low-temperature reducibility and larger specific surface area. Besides, the byproducts from the low-temperature reaction of toluene oxidation were detected by a TD/GC-MS, confirming the presence of the intermediates. Combined with the in-situ DRIFTS, the catalytic degradation path of toluene oxidation has also been discussed in depth.
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16
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Liu L, Liu Y, Liu J, Zhou B, Tang Y, Ju J, Guo M. Enhanced catalytic oxidation of toluene over manganese-based multi-metal oxides synthesized by ozone driving redox reaction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121904] [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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17
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Yue L, Xu Z, Hu M, Tian M, Ma M, Huang B, He C. Fabricating PdCe/OMS-2 catalysts with boosted low–temperature activity for toluene deep degradation. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Zheng Y, Zhou J, Zeng X, Hu D, Wang F, Cui Y. Template and interfacial reaction engaged synthesis of CeMnO x hollow nanospheres and their performance for toluene oxidation. RSC Adv 2022; 12:25898-25905. [PMID: 36199615 PMCID: PMC9468800 DOI: 10.1039/d2ra04678d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/05/2022] [Indexed: 11/21/2022] Open
Abstract
A series of well-dispersed CeMnO x hollow nanospheres with uniform diameter and thickness were synthesized by a novel approach combining the template method and interfacial reaction. A SiO2 template was used as a hard template for preparation of SiO2@CeO2 nanospheres by solvothermal reaction. SiO2@CeMnO x could be formed after KMnO4 was reacted with SiO2@CeO2 by interfacial reaction between MnO4 - and Ce3+. Among all the prepared catalysts, CeMnO x -3 with a moderate content of Mn (15 wt%) exhibited the lowest temperature for complete combustion of toluene (280 °C). Moreover, it showed high stability for 36 h with toluene conversion above 97.7% and good water tolerance with 5 vol% H2O. With characterization, we found that the reaction between Ce and Mn in the Ce-Mn binary oxides gave rise to increased Ce3+ and oxygen vacancies, which led to the formation of enhanced reducibility and more surface-absorbed oxygens (O2 2-, O2- and O-), and improved the catalytic performance further.
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Affiliation(s)
- Yuhua Zheng
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
| | - Jing Zhou
- School of Chemical Engineering, Shenyang University of Chemical Technology Shenyang 110142 Liaoning China
| | - Xi Zeng
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University Beijing 100048 China
| | - Dandan Hu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
| | - Fang Wang
- Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, Beijing Technology and Business University Beijing 100048 China
| | - Yanbin Cui
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
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19
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Pal P, Saravanamurugan S. Enhanced Basicity of MnOx-Supported Ru for the Selective Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid. CHEMSUSCHEM 2022; 15:e202200902. [PMID: 35713635 DOI: 10.1002/cssc.202200902] [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: 05/10/2022] [Revised: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The present study focused on developing a stable basic MnOx support for Ru (RuMn) for the efficient oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) in water in the absence of an external base. A series of MnOx supports, synthesized via hydrothermal approach using urea as precipitant, was prepared by thermal treatment at various temperatures (300-800 °C) before doping with Ru. The RuMn-2 (1 wt % Ru, MnOx calcined at 400 °C) possessed a large number of basic sites (1.72 mmol g-1 ) based on CO2 temperature-programmed desorption analysis, affording an FDCA yield of 87 % with a turnover frequency of 22 h-1 . Transmission electron microscopy energy-dispersive X-ray spectroscopy elemental mapping of RuMn-2 showed a high dispersion of Ru over the surface of MnOx, contributing to the efficient HMF oxidation. Moreover, X-ray diffraction, X-ray photoelectron spectroscopy, and H2 temperature-programmed reduction indicated that the predominant MnO2 phase (ϵ-MnO2 ) played a vital role in HMF oxidation. RuMn-2 was recyclable for up to four runs without significant loss in the activity and retained its structural integrity.
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Affiliation(s)
- Priyanka Pal
- Laboratory of Bioproduct Chemistry, Center of Innovative and Applied Bioprocessing (CIAB), Sector 81(Knowledge City), Mohali, 140306, Punjab (India
| | - Shunmugavel Saravanamurugan
- Laboratory of Bioproduct Chemistry, Center of Innovative and Applied Bioprocessing (CIAB), Sector 81(Knowledge City), Mohali, 140306, Punjab (India
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20
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Shen Y, Deng J, Han L, Ren W, Zhang D. Low-Temperature Combustion of Toluene over Cu-Doped SmMn 2O 5 Mullite Catalysts via Creating Highly Active Cu 2+-O-Mn 4+ Sites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:10433-10441. [PMID: 35758155 DOI: 10.1021/acs.est.2c02866] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Catalytic combustion of volatile organic compounds (VOCs) at low temperatures is still an urgent issue to be solved. Herein, low-temperature combustion of toluene over Cu-doped SmMn2O5 mullite catalysts via creating highly active Cu2+-O-Mn4+ sites has been originally demonstrated. Cu-doped SmMn2O5 mullite catalysts exhibited 90% conversion of toluene at 206 °C and displayed robust stability even in the presence of water. It has been demonstrated that Cu doping created Cu2+-O-Mn4+ active composite sites that were more exposed after removing surface Sm species via acid-etching. Benefiting from this, the redox and oxygen activation ability of catalysts was significantly enhanced. The consumption of benzaldehyde and benzoic acid as intermediate species and the CO2 generation ability were apparently promoted, which were the direct reasons for the enhanced low-temperature combustion of toluene. This work provides novel ideas for the development of high-performance catalysts for low-temperature VOC combustion, which has great industrial application prospects.
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Affiliation(s)
- Yongjie Shen
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jiang Deng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Lupeng Han
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Wei Ren
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
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21
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Su Y, Fu K, Pang C, Zheng Y, Song C, Ji N, Ma D, Lu X, Liu C, Han R, Liu Q. Recent Advances of Chlorinated Volatile Organic Compounds' Oxidation Catalyzed by Multiple Catalysts: Reasonable Adjustment of Acidity and Redox Properties. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9854-9871. [PMID: 35635373 DOI: 10.1021/acs.est.2c01420] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The severe hazard of chlorinated volatile organic compounds (CVOCs) to human health and the natural environment makes their abatement technology a key topic of global environmental research. Due to the existence of Cl, the byproducts of CVOCs in the catalytic combustion process are complex and toxic, and the possible generation of dioxin becomes a potential risk to the environment. Well-qualified CVOC catalysts should process favorable low-temperature catalytic oxidation ability, excellent selectivity, and good resistance to poisoning, which are governed by the reasonable adjustment of acidity and redox properties. This review overviews the application of different types of multicomponent catalysts, that is, supported noble metal catalysts, transition metal oxide/zeolite catalysts, composite transition metal oxide catalysts, and acid-modified catalysts, for CVOC degradation from the perspective of balance between acidity and redox properties. This review also highlights the synergistic degradation of CVOCs and NOx from the perspective of acidity and redox properties. We expect this work to inspire and guide researchers from both the academic and industrial communities and help pave the way for breakthroughs in fundamental research and industrial applications in this field.
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Affiliation(s)
- Yun Su
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Kaixuan Fu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Caihong Pang
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Yanfei Zheng
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Chunfeng Song
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Na Ji
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Degang Ma
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Xuebin Lu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Caixia Liu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Rui Han
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
| | - Qingling Liu
- Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, School of Mechanical Engineering, Tianjin University, Tianjin 300350, China
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22
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Carbon nanoparticle-entrapped macroporous Mn 3O 4 microsphere anodes with improved cycling stability for Li-ion batteries. Sci Rep 2022; 12:11992. [PMID: 35835846 PMCID: PMC9283411 DOI: 10.1038/s41598-022-16383-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/08/2022] [Indexed: 11/08/2022] Open
Abstract
Manganese oxide (Mn3O4) has garnered substantial attention as a low-cost, environment-friendly anode material. It undergoes a conversion reaction involving the formation of Li2O and metallic Mn to provide high-energy Li-ion batteries. However, its low electrical conductivity and significant volume change reduce its capacity during the initial lithiation/delithiation, hindering its practical application. To improve the cycle performance, we propose a new composite structure wherein we entrap carbon nanoparticles in macroporous Mn3O4 microspheres with a unique maze-like porous interior. We fabricate the Mn3O4/C composites using a scalable two-step process involving the thermal decomposition of MnCO3 in water vapor and mixing in a carbon-dispersed solution. The fabricated Mn3O4/C composites with varying carbon contents exhibit a high maximum discharge capacity retention of 86% after 50 cycles, compared to the 18% given by bare Mn3O4. The entrapped carbon nanoparticles improve the cycle performance both electrochemically and physically. The microstructure of the composite particles and the fabrication process developed in this study will help improve the performance of other conversion-type anode materials that suffer from cycle degradation, including inexpensive transition metal oxides and sulfides.
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23
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Jiang Z, Tian M, Jing M, Chai S, Jian Y, Chen C, Douthwaite M, Zheng L, Ma M, Song W, Liu J, Yu J, He C. Modulating the Electronic Metal-Support Interactions in Single-Atom Pt 1 -CuO Catalyst for Boosting Acetone Oxidation. Angew Chem Int Ed Engl 2022; 61:e202200763. [PMID: 35347821 DOI: 10.1002/anie.202200763] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Indexed: 01/17/2023]
Abstract
The development of highly active single-atom catalysts (SACs) and identifying their intrinsic active sites in oxidizing industrial hazardous hydrocarbons are challenging prospects. Tuning the electronic metal-support interactions (EMSIs) is valid for modulating the catalytic performance of SACs. We propose that the modulation of the EMSIs in a Pt1 -CuO SAC significantly promotes the activity of the catalyst in acetone oxidation. The EMSIs promote charge redistribution through the unified Pt-O-Cu moieties, which modulates the d-band structure of atomic Pt sites, and strengthens the adsorption and activation of reactants. The positively charged Pt atoms are superior for activating acetone at low temperatures, and the stretched Cu-O bonds facilitate the activation of lattice oxygen atoms to participate in subsequent oxidation. We believe that this work will guide researchers to engineer efficient SACs for application in hydrocarbon oxidation reactions.
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Affiliation(s)
- Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Meizan Jing
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Yanfei Jian
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Mark Douthwaite
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mudi Ma
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, P. R. China.,National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, P. R. China
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24
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Catalytic Oxidation of Toluene over Fe-Rich Palygorskite Supported Manganese Oxide: Characterization and Performance. Catalysts 2022. [DOI: 10.3390/catal12070763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A series of Fe–rich palygorskite supported manganese oxide (X%Mn–Pal) catalysts were prepared by co-precipitation method and used as catalysts for toluene oxidation. The components and structure of the as-prepared catalysts were characterized by XRD, Raman, TEM, XPS, and in situ DRIFTS. The results showed that the 15%Mn–Pal catalyst exhibited the highest catalytic activity (T90 = 227 °C) and excellent cycling stability for the oxidation of toluene compared with other catalysts. The characterization results indicated that remarkable activity of the 15%Mn–Pal catalyst for toluene oxidation should be ascribed to the abundant surface oxygen vacancies. In situ DRIFTS results elucidated that benzoate was the main intermediate, which can be further oxidized into H2O and CO2. The objectives of this study are to (i) investigate the synergistic effect between Fe and Mn for toluene oxidation, (ii) develop an efficient catalyst for toluene abatement with high activity and low–cost, and (iii) promote the application of natural Fe–rich palygorskite in the control of VOCs.
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25
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Jiang Z, Tian M, Jing M, Chai S, Jian Y, Chen C, Douthwaite M, Zheng L, Ma M, Song W, Liu J, Yu J, He C. Modulating the Electronic Metal‐Support Interactions in Single‐Atom Pt
1
−CuO Catalyst for Boosting Acetone Oxidation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- Department of Chemistry National University of Singapore Singapore 117543 Singapore
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China
| | - Meizan Jing
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Yanfei Jian
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Mark Douthwaite
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis School of Chemistry Cardiff University Cardiff CF10 3AT UK
| | - Lirong Zheng
- Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Mudi Ma
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing China University of Petroleum Beijing 102249 P. R. China
| | - Jiaguo Yu
- Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 P. R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- National Engineering Laboratory for VOCs Pollution Control Material & Technology University of Chinese Academy of Sciences Beijing 101408 P. R. China
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26
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Hu Z, Tang Z, Zhang T, Yong X, Mi R, Li D, Yang X, Yang RT. Synergism between Manganese and Cobalt on Mn–Co Oxides for the Catalytic Combustion of VOCs: A Combined Kinetics and Diffuse Reflectance Infrared Fourier Transform Spectroscopy Study. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c05077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhun Hu
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Ziyu Tang
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Tao Zhang
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Xiang Yong
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Rongli Mi
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Dan Li
- School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
| | - Xia Yang
- National Institute of Clean and Low Carbon Energy, Beijing 102218, China
| | - Ralph T. Yang
- Department of Chemical Engineering, University of Michigan, 3074 H.H. Dow, 2300 Hayward Street, Ann Arbor, Michigan 48109-2136, United States
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27
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Liu Q, Cheng G, Sun M, Yu W, Xiaohong, Zeng, Tang S, li Y, Yu L. A facile preparation of hausmannite as a high-performance catalyst for toluene combustion. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Bifunctional ZnCo2O4 catalyst for NO reduction and 1,2-dichloroethane combustion. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Modification of Beta Zeolites and Their Application in Catalytic Oxidation of Propane. ChemistrySelect 2022. [DOI: 10.1002/slct.202103425] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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30
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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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Intra-crystalline mesoporous zeolite encapsulation-derived thermally robust metal nanocatalyst in deep oxidation of light alkanes. Nat Commun 2022; 13:295. [PMID: 35027532 PMCID: PMC8758710 DOI: 10.1038/s41467-021-27828-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 11/04/2021] [Indexed: 12/25/2022] Open
Abstract
Zeolite-confined metal nanoparticles (NPs) have attracted much attention owing to their superior sintering resistance and broad applications for thermal and environmental catalytic reactions. However, the pore size of the conventional zeolites is usually below 2 nm, and reactants are easily blocked to access the active sites. Herein, a facile in situ mesoporogen-free strategy is developed to design and synthesize palladium (Pd) NPs enveloped in a single-crystalline zeolite (silicalite-1, S-1) with intra-mesopores (termed Pd@IM-S-1). Pd@IM-S-1 exhibited remarkable light alkanes deep oxidation performances, and it should be attributed to the confinement and guarding effect of the zeolite shell and the improvement in mass-transfer efficiency and active metal sites accessibility. The Pd−PdO interfaces as a new active site can provide active oxygen species to the first C−H cleavage of light alkanes. This work exemplifies a promising strategy to design other high-performance intra-crystalline mesoporous zeolite-confined metal/metal oxide catalysts for high-temperature industrial thermal catalysis. Zeolite-confined metal nanoparticles (NPs) have attracted much attention owing to their superior sintering resistance and broad applications. Here the authors develop a facile in situ mesoporogen-free strategy to design and synthesize palladium NPs enveloped within a single-crystalline zeolite with intra-mesopores.
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32
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Chen C, Kosari M, He C, Ma M, Tian M, Jiang Z, Albilali R. Realizing Toluene Deep Mineralization by Coupling Nonthermal Plasma and Nitrogen-Enriched Hollow Hybrid Carbon. ACS APPLIED MATERIALS & INTERFACES 2022; 14:990-1001. [PMID: 34958541 DOI: 10.1021/acsami.1c20157] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Achieving excellent efficiency to mineralize volatile organic compounds (VOCs) under nonthermal plasma catalysis (NTP-catalysis) systems tremendously relies on the catalyst design. Herein, we report a dual-template strategy for synthesizing a core-shell structured nitrogen-enriched hollow hybrid carbon (N-HHC) by a facile pyrolysis of a Mn-ZIF-8@polydopamine core-shell precursor. N-HHC exhibits a remarkable plasma synergy effect and superior degradation efficiency for toluene (up to 90% with a specific input energy of 281 J/L), excellent CO2 selectivity (>45%), and byproduct-inhibiting capability. Such outstanding functionality of the developed N-HHC is uniquely attributed to its hollow multistage and channeling structure, high concentration of O3-decomposing species (pyrrolic and oxide pyridinic-N), and abundant ZnO active sites. Shedding light on an efficient synthetic strategy for designing an advanced nanocatalyst with enhanced VOC destruction in the NTP-catalysis system, the present results could be extended to design other N-doped metal/metal oxide-decorated hollow porous carbons for environment-related applications.
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Affiliation(s)
- Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Mohammadreza Kosari
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P. R. China
| | - Mudi Ma
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
| | - Mingjiao Tian
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
| | - Zeyu Jiang
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China
| | - Reem Albilali
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
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33
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Xie Y, Wang J, Zhou Z, Wu Y, Cheng G, Li Y, Sun C, Sun M, Yu L. Engineering of Mn 3O 4@Ag microspheres assembled from nanosheets for superior O 3 decomposition. Dalton Trans 2022; 51:16612-16619. [DOI: 10.1039/d2dt02711a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A topochemical transformation route was designed for synthesis of Mn3O4 nanospheres using β-MnOOH as the precursor. Ag nanoparticles were doped via an in situ redox reaction to obtain Mn3O4@Ag-NF, which displayed an enhanced performance for O3 elimination.
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Affiliation(s)
- Yu Xie
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Jiandian Wang
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Zihao Zhou
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Ying Wu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Gao Cheng
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Yongfeng Li
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Changyong Sun
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Ming Sun
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
| | - Lin Yu
- Key Laboratory of Clean Chemistry Technology of Guangdong Regular Higher Education Institutions, School of Chemical Engineering and Light Industry, Guangdong University of Technology, 510006 Guangzhou, P. R. China
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34
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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35
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Dai Y, Men Y, Wang J, Liu S, Li S, Li Y, Wang K, Li Z. Tailoring the morphology and crystal facet of Mn3O4 for highly efficient catalytic combustion of ethanol. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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36
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Pan H, Chen Z, Ma M, Guo T, Ling X, Zheng Y, He C, Chen J. Mutual inhibition mechanism of simultaneous catalytic removal of NO x and toluene on Mn-based catalysts. J Colloid Interface Sci 2021; 607:1189-1200. [PMID: 34571306 DOI: 10.1016/j.jcis.2021.09.110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/06/2021] [Accepted: 09/19/2021] [Indexed: 10/20/2022]
Abstract
NOx and toluene have been identified as the dominant air pollutants in solid wasted combustion, and it is of great importance to remove these two pollutants simultaneously. Here, we found that Mn/CeO2 and Mn/TiO2 exhibited a bifunctional property in both NO reduction and toluene oxidation, and both of which could achieve 80% of conversion rate in NO reduction and toluene oxidation processes. However, the activity of both Mn/CeO2 and Mn/TiO2 decreased in simultaneous removal of NOx and toluene compared with separate NOx reduction and toluene oxidation. This indicates that there is a mutual inhibition between NOx reduction and toluene oxidation in simultaneous removal process over Mn-based catalysts, attributing to the competitive adsorption and utilization of active oxygen. In detail, the adsorption of toluene occupied the Lewis acid sites and restrained the NH3 adsorption. Meanwhile, the competitive utilization of active oxygen by NH3/NOx inhibited toluene oxidation to CO2 by active oxygen species as the reaction between NH3/NOx and active oxygen species would occur more easily.
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Affiliation(s)
- Hua Pan
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zhenghui Chen
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Mudi Ma
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Tianjiao Guo
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Xin Ling
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yufan Zheng
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Chi He
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jun Chen
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China.
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Liu S, Liu L, Cheng Z, Zhu J, Yu R. Surface Structures of Mn 3O 4 and the Partition of Oxidation States of Mn. J Phys Chem Lett 2021; 12:5675-5681. [PMID: 34114819 DOI: 10.1021/acs.jpclett.1c01422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The Mn(III) ions at Mn3O4 surface are hypothesized to contribute to catalytic activity in oxygen reduction reaction. However, the surface structure and stability of Mn3O4 are far less understood. Here, the atomic structures of the widespread (101) and (001) surfaces of Mn3O4 are determined by combining aberration-corrected transmission electron microscopy and DFT calculations. The surface stabilization mechanisms and the oxidation states of Mn are revealed and correlated to the catalytic activity of the surfaces. The results show that the (101) surface undergoes a subsurface reconstruction, forming a rock-salt-type surface layer. The Mn(III) ions are in the outermost layer of the (001) surface but in the subsurface of the (101) surface. The surface partition of the Mn(III) ions provides a microscopic understanding to the observed higher catalytic activity of the (001) surface relative to the (101) surface and would contribute to further development of novel catalysts based on Mn3O4.
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Affiliation(s)
- Shengsheng Liu
- National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Linhan Liu
- National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Zhiying Cheng
- National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Jing Zhu
- National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Rong Yu
- National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
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38
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Morphology Effects of CeO 2 Nanomaterials on the Catalytic Combustion of Toluene: A Combined Kinetics and Diffuse Reflectance Infrared Fourier Transform Spectroscopy Study. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01981] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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39
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Catalytic performance improvement of volatile organic compounds oxidation over MnO and GdMnO3 composite oxides from spent lithium-ion batteries: Effect of acid treatment. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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40
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Wu P, Jin X, Qiu Y, Ye D. Recent Progress of Thermocatalytic and Photo/Thermocatalytic Oxidation for VOCs Purification over Manganese-based Oxide Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:4268-4286. [PMID: 33720707 DOI: 10.1021/acs.est.0c08179] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Volatile organic compounds (VOCs) are one of the main sources of air pollution, which are of wide concern because of their toxicity and serious threat to the environment and human health. Catalytic oxidation has been proven to be a promising and effective technology for VOCs abatement in the presence of heat or light. As environmentally friendly and low-cost materials, manganese-based oxides are the most competitive and promising candidates for the catalytic degradation of VOCs in thermocatalysis or photo/thermocatalysis. This article summarizes the research and development on various manganese-based oxide catalysts, with emphasis on their thermocatalytic and photo/thermocatalytic purification of VOCs in recent years in detail. Single manganese oxides, manganese-based oxide composites, as well as improving strategies such as morphology regulation, heterojunction engineering, and surface decoration by metal doping or universal acid treatment are reviewed. Besides, manganese-based monoliths for practical VOCs abatementare also discussed. Meanwhile, relevant catalytic mechanisms are also summarized. Finally, the existing problems and prospect of manganese-based oxide catalysts for catalyzing combustion of VOCs are proposed.
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Affiliation(s)
- Peng Wu
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
| | - Xiaojing Jin
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
- Guangdong Provincial Key Lab of Nano-Micro Materials Research, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yongcai Qiu
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, China
| | - Daiqi Ye
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
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41
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Wu S, Wei K, Fang W. Influence of Calcination on Mesoporous Mn
1
Zr
0.5
O
y
Solid Solution in Oxidative Coupling Catalysis for Benzylideneaniline Formation. ChemistrySelect 2021. [DOI: 10.1002/slct.202004509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shipeng Wu
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
| | - Kun Wei
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
| | - Wenhao Fang
- School of Chemical Science and Technology Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education Yunnan University 2 North Cuihu Road 650091 Kunming China
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42
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Liu R, Song H, Li B, Li X, Zhu T. Simultaneous removal of toluene and styrene by non-thermal plasma-catalysis: Effect of VOCs interaction and system configuration. CHEMOSPHERE 2021; 263:127893. [PMID: 32835971 DOI: 10.1016/j.chemosphere.2020.127893] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 06/11/2023]
Abstract
Toluene and styrene were two typical aromatic VOCs which were commonly used and coexistence in the exhaust gases from industrial manufacturing. Their simultaneous removal performances under non-thermal plasma (NTP) and NTP-catalysis were carried out and compared by a single stage coaxial dielectric barrier discharge (DBD) reactor. The effects of VOCs mixture, humidity, materials filling in the discharge zoon on the removal efficiency, COx selectivity, byproducts types and their emission levels were deeply investigated to explore the degradation mechanism and coexistence effect. Experimental results showed that the toluene removal was significantly inhibited when treated together with styrene under plasma treatment. But that of styrene was hardly affected at the same conditions. It was found that benzaldehyde as the primary organic byproducts from styrene consumed the oxidizing particles (O and . OH), limiting the conversion of toluene. The introduction of Cu-doped MnO2 materials significantly improved the VOCs removal performance with nearly 100% conversion to COx at a discharge power less than 30 W, as well as O3 generation from more than 1.2 mg L-1 by NTP to 1.6 × 10-3 mg L-1 by NTP-catalysis. With the help of in situ FT-IR, it was believed that catalysts not only accelerated the adsorption and degradation of pollutants but also utilized ozone to involve this process. At last, a plausible explanation on binary coexistence effect under different conditions had been suggested and discussed.
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Affiliation(s)
- Runqi Liu
- School of Space and Environment, Beihang University, Beijing, 100191, PR China
| | - Hua Song
- Research Institution of Chemical Defense, Beijing, 102205, PR China
| | - Bo Li
- School of Space and Environment, Beihang University, Beijing, 100191, PR China
| | - Xiang Li
- School of Space and Environment, Beihang University, Beijing, 100191, PR China.
| | - Tianle Zhu
- School of Space and Environment, Beihang University, Beijing, 100191, PR China
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43
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Wu S, Zhang H, Cao Q, Zhao Q, Fang W. Efficient imine synthesis via oxidative coupling of alcohols with amines in an air atmosphere using a mesoporous manganese–zirconium solid solution catalyst. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02288h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoporous Mn1ZrxOy solid solution enables efficient imine formation from catalytic oxidative coupling of alcohols and amines at low temperature in an air atmosphere without base additives.
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Affiliation(s)
- Shipeng Wu
- School of Chemical Science and Technology
- Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- Yunnan University
- 650091 Kunming
| | - Hao Zhang
- School of Chemical Science and Technology
- Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- Yunnan University
- 650091 Kunming
| | - Qiue Cao
- School of Chemical Science and Technology
- Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- Yunnan University
- 650091 Kunming
| | - Qihua Zhao
- School of Chemical Science and Technology
- Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- Yunnan University
- 650091 Kunming
| | - Wenhao Fang
- School of Chemical Science and Technology
- Key Laboratory of Medicinal Chemistry for Natural Resource – Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- Yunnan University
- 650091 Kunming
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44
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Enhanced catalytic oxidation of VOCs over porous Mn-based mullite synthesized by in-situ dismutation. J Colloid Interface Sci 2020; 585:302-311. [PMID: 33302047 DOI: 10.1016/j.jcis.2020.11.096] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 02/06/2023]
Abstract
Porous Mn-based mullite SmMn2O5 was synthesized by the in-situ dismutation of solid state Mn3+ in bulk SmMnO3 perovskite to catalytic oxidation of benzene and chrolobenznen. The physicochemical property of catalyst was acquired by XRD, SEM, N2 adsorption-desorption, XPS, O2-TPD and H2-TPR. Compared with that of bulk SmMnO3 and bulk SmMn2O5, the porous SmMn2O5 mullite (SmMn2O5-ID) displayed higher molar ratios of Mn4+/Mn3+ and Olatt/Oads, and better active oxygen desorption capacity, reducibility and larger specific surface, which promoted the preferable low-temperature catalytic oxidation of VOC. The increase in the content of Mn4+ on the surface of the Sm-Mn mullite reduced the surface defects and increased the proportion of its surface lattice oxygen, thereby promoting the attack of VOC molecules by more lattice oxygen. Combined with the analysis of reactant intermediate for benzene oxidation by in situ diffuse reflectance infrared Fourier transform spectroscopy, the catalytic mechanism of the catalyst was also explored. Moreover, SmMn2O5-ID also showed the excellent stability and the superior removal of mixed VOCs with different concentration ratios. This finding provides an efficient and practical method for exploiting highly active Mn-based mullite with a high efficiency and stability for the purification of air pollution.
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Guo M, Li K, Zhang H, Min X, Liang J, Hu X, Guo W, Jia J, Sun T. Promotional removal of oxygenated VOC over manganese-based multi oxides from spent lithium-ions manganate batteries: Modification with Fe, Bi and Ce dopants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 740:139951. [PMID: 32563871 DOI: 10.1016/j.scitotenv.2020.139951] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/17/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
In this work, cathode materials of spent lithium-ions manganate batteries are recovered as the precursor of manganese-based oxides catalysts and furthermore, different amount of Fe, Bi, Ce are introduced to modify their properties. A series of MnOx(MS)-X Fe, MnOx(MS)-X Bi and MnOx(MS)-X Ce samples with crystal phase of Mn5O8 are synthesized using combustion method and then the catalytic behavior and physicochemical properties of prepared catalysts are investigated. Compared to binary MnOx-5% Fe, MnOx-15% Bi and MnOx-10% Ce samples, multi MnOx(MS)-5% Fe, MnOx(MS)-15 Bi and MnOx(MS)-10% Ce catalysts display enhanced catalytic performance significantly in the removal of oxygenated VOC, which could be attributed to larger specific surface area, higher concentration of surface active oxygen species and Mn4+ ions and better reducibility at low temperature. In-situ DRIFTS results imply that main oxygen-containing functional groups such as carbonyl (-C=O), carboxyl (-COO), hydroxyl (-OH) can be observed during VOC oxidation and by comparison, it can be found that gas-phase O2 plays a crucial role in facilitating the further oxidation of by-products into CO2. In addition, TD/GC-MS results point out that the main by-products are formaldehyde; 2-propanol, 1-methoxy-; ethanol, 2-methoxy-, acetate; 2-ethoxyethyl acetate; acetic acid during VOC oxidation.
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Affiliation(s)
- Mingming Guo
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Kan Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China; Shanghai Institute of Pollution Control and Ecology Security, Shanghai 200092, PR China
| | - Hongbo Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Xin Min
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Jianxing Liang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Xiaofang Hu
- Lab Center for the School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Weimin Guo
- Lab Center for the School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jinping Jia
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China; Shanghai Institute of Pollution Control and Ecology Security, Shanghai 200092, PR China
| | - Tonghua Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China; Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai 200240, PR China.
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Shen Y, Deng J, Impeng S, Li S, Yan T, Zhang J, Shi L, Zhang D. Boosting Toluene Combustion by Engineering Co-O Strength in Cobalt Oxide Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:10342-10350. [PMID: 32668146 DOI: 10.1021/acs.est.0c02680] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Exploring active and low-cost transition metal oxides (TMOs) based catalysts for volatile organic compounds (VOCs) abatement is vital for air pollution control technologies. Since 18 oxygen atoms are required for the complete mineralization of a toluene molecule, the participation of a large amount of active oxygen is a key requirement for the catalytic oxidation of toluene. Here, toluene degradation was improved by weakening the Co-O bond strength on the surface of cobalt oxide, so as to increase the amount of active oxygen species, while maintaining the high stability of the catalyst for toluene combustion. The bond strength of Co-O and the amount of surface active O2 was regulated by tuning the pyrolysis temperature. The catalyst's redox ability and surface oxygen species activity are improved due to the weakening of the Co-O bond strength. It has been demonstrated that active oxygen plays a crucial role in boosting toluene combustion by engineering Co-O strength in cobalt oxide catalysts. This work provides a new understanding of the exploration and development of high-performance TMO catalysts for VOCs abatement.
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Affiliation(s)
- Yongjie Shen
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Jiang Deng
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Sarawoot Impeng
- National Nanotechnology Center, National Science and Technology Development Agency, Bangkok 12120, Pathum Thani, Thailand
| | - Shuangxi Li
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Tingting Yan
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Jianping Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Liyi Shi
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
| | - Dengsong Zhang
- State Key Laboratory of Advanced Special Steel, School of Materials Science and Engineering, International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Research Center of Nano Science and Technology, College of Sciences, Shanghai University, Shanghai 200444, P. R. China
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Li A, Long H, Zhang H, Li H. High-yield synthesis of Ce modified Fe-Mn composite oxides benefitting from catalytic destruction of chlorobenzene. RSC Adv 2020; 10:10030-10037. [PMID: 35498593 PMCID: PMC9050221 DOI: 10.1039/c9ra10489e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/19/2020] [Indexed: 11/23/2022] Open
Abstract
Ce–Fe–Mn catalysts were prepared by an oxalic acid assisted co-precipitation method. The influence of Ce doping and calcination temperature on the catalytic oxidation of chlorobenzene (as a model VOC molecule) was investigated in a fixed bed reactor. The Mn3O4 phase was formed in Ce–Fe–Mn catalysts at low calcination temperatures (<400 °C), which introduced more chemisorbed oxygen, and enhanced the mobility of O atoms, resulting in an improvement of the reduction active of Mn3O4 and Fe2O3. Additionally, CeO2 has strong redox properties, and Ce4+ would oxidize Mnx+ and Fex+. Therefore, the interaction of Ce, Fe and Mn can improve the content of surface chemisorbed oxygen. As compared with Fe–Mn catalysts, the catalytic conversion of chlorobenzene over Ce(5%)–Fe–Mn-400 was about 99% at 250 °C, owing to high specific surface area, Mn3O4 phase, and Ce doping. However, with the increase in roasting temperature, the performance of the catalysts for the catalytic combustion of chlorobenzene was decreased, which probably accounts for the formation of the Mn2O3 phase in Ce–Fe–Mn-500 catalysts, leading to a decrease in the specific surface area and concentration of chemically adsorbed oxygen. As a result, it can be expected that the Ce–Fe–Mn catalysts are effective and promising catalysts for chlorobenzene destruction. Ce–Fe–Mn catalysts were prepared by an oxalic acid assisted co-precipitation method.![]()
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Affiliation(s)
- Anqi Li
- School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China
| | - Hongming Long
- Key Laboratory of Metallurgical Emission Reduction & Resource Recycling (Anhui University of Technology), Ministry of Education Ma'anshan Anhui 243002 PR China .,School of Metallurgical Engineering, Anhui University of Technology Ma'anshan Anhui 243002 China
| | - Hongliang Zhang
- Key Laboratory of Metallurgical Emission Reduction & Resource Recycling (Anhui University of Technology), Ministry of Education Ma'anshan Anhui 243002 PR China
| | - Haijin Li
- Key Laboratory of Metallurgical Emission Reduction & Resource Recycling (Anhui University of Technology), Ministry of Education Ma'anshan Anhui 243002 PR China .,School of Energy and Environment, Anhui University of Technology Ma'anshan Anhui 243002 China
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48
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Feng X, Chen C, He C, Chai S, Yu Y, Cheng J. Non-thermal plasma coupled with MOF-74 derived Mn-Co-Ni-O porous composite oxide for toluene efficient degradation. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121143. [PMID: 31518814 DOI: 10.1016/j.jhazmat.2019.121143] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/21/2019] [Accepted: 09/02/2019] [Indexed: 05/14/2023]
Abstract
A novel strategy for removal of toluene by non-thermal plasma (NTP) coupled with metal-organic frameworks (MOFs) derived catalyst was proposed in this work. The MOF-derived porous trimetallic oxide catalyst (MnCoNiOx, MCNO) was prepared by simple pyrolysis of a MOF-74(Mn-Co-Ni) precursor. We found that the MCNO material can well synergy with NTP in total decomposition of toluene owing to its high specific surface area, regular porous structure and excellent reducibility, which endow superior catalytic activity and CO2 selectivity of NTP-MCNO system compared to that of NTP-MnOx, NTP-CoOx and NTP-NiOx. For instance, the toluene degradation efficiency can reach up to 75.7% in NTP-MCNO system with a low specific input energy of 101 J/L, much higher than that of NTP-MnOx (59.3%), NTP-CoOx (70.9%), NTP-NiOx (65.0%) and NTP alone (42.9%). Moreover, the formed ozone (O3) can be well-controlled by the NTP-MCNO system due to the spinel-type oxides (MCNO) derived from MOF could generate more open-formwork structure and improve the mobility of oxygen. The results of this work would shed light on rational design and preparation of spinel-type oxides for oxidation applications, which provides guidance for further improvement of plasma-catalysis system.
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Affiliation(s)
- Xiangbo Feng
- Shaanxi Key Laboratory of Safety and Durability of Concrete, Xijing University, Xi'an, 710123, Shaanxi, PR China; State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China; Institute for Health and Environment, Chongqing University of Science and Technology, Chongqing, 401331, PR China
| | - Changwei Chen
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
| | - Shouning Chai
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, PR China
| | - Yanke Yu
- Department of Chemical Engineering, Columbia University, New York, 10027, United States
| | - Jie Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China.
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49
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Chen S, Li H, Hao Y, Chen R, Chen T. Porous Mn-based oxides for complete ethanol and toluene catalytic oxidation: the relationship between structure and performance. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02522g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SmMn2O5 exhibited a higher catalytic activity for catalytic oxidation of ethanol and toluene than SmMnO3, Mn3O4 and Mn2O3. Mn3+–Mn3+ dimers facilitate C–C bond cleavage.
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Affiliation(s)
- Shaohua Chen
- Institute of New Catalytic Materials Science
- School of Materials Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300350
| | - Hui Li
- College of Mechanical and Electrical Engineering
- Jiaxing University
- Jiaxing 314001
- People's Republic of China
| | - Yu Hao
- Institute of New Catalytic Materials Science
- School of Materials Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300350
| | - Rui Chen
- Institute of New Catalytic Materials Science
- School of Materials Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300350
| | - Tiehong Chen
- Institute of New Catalytic Materials Science
- School of Materials Science and Engineering
- Key Laboratory of Advanced Energy Materials Chemistry (MOE)
- Nankai University
- Tianjin 300350
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50
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Spherical-like Pd/SiO2 catalysts for n-butylamine efficient combustion: Effect of support property and preparation method. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.11.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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