Catalytic oxidation of volatile organic compounds over manganese-based oxide catalysts: Performance, deactivation and future opportunities

Lu, Tonglu; Su, Fangcheng; Zhao, Qian; Li, Juexiu; Zhang, Changsen; Zhang, Ruiqin; Li, Panpan

doi:10.1016/j.seppur.2022.121436

Cited by 33 publications

(4 citation statements)

References 149 publications

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“…However, this approach is hampered by their cost, lack of sustainability and/or thermostability 7 . Room temperature FA removal 12 relies on photocatalysis, which has so far been mainly limited to titania-based substrates, leading to slow and incomplete FA oxidation 13 in addition to other technical constraints and higher energy consumption. Considering the low FA concentration in indoor air, capture and disposal could be a solution.…”

Section: Introductionmentioning

confidence: 99%

Metal Organic Frameworks for the selective and efficient capture of formaldehyde

Sadovnik,

Lyu,

Nouar

et al. 2023

Preprint

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Addressing the challenge of purifying poor-quality indoor air while respecting the principles of sustainable development requires innovative, advanced sustainable materials. Coupling state-of-the-art spectroscopic techniques with theoreti-cal calculations, we revealed an advantageous mild chemisorption synergistic mechanism for trapping the most harmful indoor pollutant (i.e. formaldehyde) in a reversible way, without significant energy penalties for regeneration. Based on these data we have designed a facile green and scalable synthesis protocol, and shaped a porous water stable Al pyra-zole dicarboxylate metal-organic framework able to perform as a highly efficient reusable filter. This MOF, denoted Al-3.5-PDA or MOF-303, shows unprecedented selectivity and storage capacity for formaldehyde, in conditions repre-sentative of severe use in housing or vehicle cockpits (variable VOC mixtures and concentrations, humidity, tempera-ture), without any accidental release. Moreover, it can be easily regenerated by a domestic protocol guarantying reuse of the filter for a number of cycles representing at least 10 years of continuous use.

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Section: Introductionmentioning

confidence: 99%

Metal Organic Frameworks for the selective and efficient capture of formaldehyde

Sadovnik,

Lyu,

Nouar

et al. 2023

Preprint

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“…The emission of volatile organic compounds (VOCs) from anthropogenic sources poses a significant threat to human healthy and air quality. , Eliminating VOCs in exhaust from industries would be significant to lower the VOC concentration in the atmosphere environment and could be achieved by using various techniques including catalytic oxidation, adsorption and absorption, photocatalytic decomposition, and biological oxidation. , Among them, biological oxidation techniques were with the low capital and operational costs, high removal efficiency, very less generation of secondary pollutants, and reliable long-term operational stability and showed great promise in the removal of VOCs in exhaust. , …”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Toluene in Gas and Electricity Production by Using a Single-Chamber Microbial Fuel Cell-Biotricking Filter System

Wang

Dai

et al. 2022

ACS Sustainable Chem. Eng.

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Biotrickling filters (BTFs) combined with microbial fuel cell (MFC) provide a sustainable approach to remove volatile organic compounds accompanied by electricity production. In this study, an integrate system (SMFC-BTF) combining singlechamber MFC with BTF is constructed and used to remove toluene-containing gas. A stable removal efficiency of ∼80% is obtained for the 800 ppm toluene accompanied with the current output of 0.25 mA, indicating the feasibility of SMFC-BTF for the simultaneous removal of toluene and electricity production. Moreover, the removal efficiency increases to 95% when the inlet toluene concentration is below 400 ppm under the empty bed retention time of 180s. The detection of intermediate products reveals that cresol, benzyl alcohol, hydroxybenzoic acid, and dihydroxybenzoic acid are produced during the oxidation of toluene by aerobic and anaerobic microorganisms. Accordingly, the pathways of toluene degradation in SMFC-BTF are proposed. The significant difference of microbial species growing in different parts of SMFC-BTF suggests that the process of toluene removal in the system is spatial difference. Our results provide a promising system for the simultaneous removal of toluene and energy recovery.

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“…Among many strategies aiming to control and mitigate VOC emissions, catalytic combustion is considered a particularly attractive clean-up technology as it enables the efficient, safe, and cost-effective purification of air [2][3][4][5][6][7][8][9][10][11][12]. In general, total oxidation catalysts are based either on noble metals or on transition metal oxides.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, oxide catalysts, most frequently containing Cu, Mn, Ce, Co, Fe, Cr, etc. as active redox components, are significantly cheaper and less susceptible to deactivation by poisoning, but they usually display lower activity and require higher operating temperatures [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The Synthesis of Cu–Mn–Al Mixed-Oxide Combustion Catalysts by Co-Precipitation in the Presence of Starch: A Comparison of NaOH with Organic Precipitants

et al. 2022

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Cu–Mn mixed oxides are well known as active combustion catalysts. The common method for their synthesis is based on co-precipitation, with NaOH as a precipitant, and is burdened with the possibility of introducing undesired Na contamination. This work describes the use of two organic bases, tetrabutylammonium hydroxide and choline hydroxide, as precipitating agents in a novel alkali-free route for Cu–Mn–Al catalyst synthesis. To obtain fine crystalline precursors, which are considered advantageous for the preparation of active catalysts, co-precipitation was carried out in the presence of starch gel. Reference materials prepared with NaOH in the absence of starch were also obtained. Mixed oxides were produced by calcination at 450 °C. The precursors contained MnCO3 doped with Cu and Al, and an admixture of amorphous phases. Those prepared in the presence of starch were less crystalline and retained biopolymer residues. The combustion of these residues during calcination enhanced the formation of larger amounts of the Cu1.5Mn1.5O4 spinel phase, with better crystallinity in comparison to catalysts prepared from conventionally synthesized precursors. Tests of toluene combustion demonstrated that the catalysts prepared with starch performed better than those obtained in starch-free syntheses, and that the mixed oxides obtained by the alkali-free route were more active than catalysts prepared with NaOH. Catalytic data are discussed in terms of property–performance relationships.

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Catalytic oxidation of volatile organic compounds over manganese-based oxide catalysts: Performance, deactivation and future opportunities

Cited by 33 publications

References 149 publications

Metal Organic Frameworks for the selective and efficient capture of formaldehyde

Metal Organic Frameworks for the selective and efficient capture of formaldehyde

Simultaneous Removal of Toluene in Gas and Electricity Production by Using a Single-Chamber Microbial Fuel Cell-Biotricking Filter System

The Synthesis of Cu–Mn–Al Mixed-Oxide Combustion Catalysts by Co-Precipitation in the Presence of Starch: A Comparison of NaOH with Organic Precipitants

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