Removal of hazardous chlorinated VOCs over Mn–Cu mixed oxide based catalyst

Vu, Van Hinh; Belkouch, Jamal; Ould-Dris, Aïssa; Taouk, Bechara

doi:10.1016/j.jhazmat.2009.04.010

Cited by 149 publications

(62 citation statements)

References 37 publications

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“…In contrast, the transition metal oxide catalysts exhibit higher activity and superior durability against deactivation [10]. Among them, the copper, manganese, and chromium modified catalysts show excellent catalytic activities for CVOCs destruction.…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al [1] and Li et al [9] have found that the MnO x -CeO 2 mixed oxides showed high catalytic activity and stability for chlorobenzene (CB) and trichloroethylene (TCE) oxidation. Manganese-copper mixed oxides have been widely employed as active catalysts for total oxidation reactions (e.g., CO, hydrocarbons, and methane) and selective catalytic reduction of NO [10,22,23]. Li and co-workers [24,25] have found that the CuMnCeO x catalysts possessed excellent CO oxidation performance.…”

Section: Introductionmentioning

confidence: 99%

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Catalytic behavior and synergistic effect of nanostructured mesoporous CuO-MnOx-CeO2 catalysts for chlorobenzene destruction

Shen

et al. 2014

Applied Surface Science

106

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a b s t r a c tMesoporous CuO-MnO x -CeO 2 composite metal oxides with different copper and manganese loadings were prepared by a urea-assistant hydrothermal method, and were further adopted for the complete catalytic combustion of chlorobenzene. The effects of reaction conditions such as inlet reagent concentration and water feed concentration on chlorobenzene combustion were also studied. The structure and textural properties of the synthesized catalysts were characterized via the XRD, N 2 adsorption/desorption, FE-SEM, TEM, H 2 -TPR, O 2 -TPD, and XPS techniques. The characterization results reveal that the presence of a small amount of Mn species can facilitate the incorporation of Cu and Mn ions into ceria lattice to form Cu-Mn-Ce-O solid solution. The synergistic effect of Cu and Mn species can reduce the redox potential of the composite catalysts, and produce large amounts of oxygen vacancies in the interface of CuO x , MnO x , and CeO 2 oxides. The catalyst with Cu/Mn atomic ratio of 1/1 exhibits the best chlorobenzene elimination capability, oxidizing about 95% of the inlet chlorobenzene at 264• C with CO 2 selectivity higher than 99.5%. The concentration and mobility of the chemically adsorbed oxygen are vital for the effective removal of surface Cl species, which inhibits the dissociation of oxygen molecules and decreases the reducibility of the copper and manganese species. It can be rationally concluded that the superior catalytic performance and durability of the mesoporous CuO-MnO x -CeO 2 composite oxides are primarily attributed to the higher surface oxygen concentration and better active oxygen mobility.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Catalytic behavior and synergistic effect of nanostructured mesoporous CuO-MnOx-CeO2 catalysts for chlorobenzene destruction

Shen

et al. 2014

Applied Surface Science

106

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“…As shown in this figure, both catalysts deactivate to some extent at low temperatures (less than 225°C). The activity of the Mn-Ti catalyst is not stable until 300°C, whereas for Sn-Mn-Ti, the temperature required for stable activity is 225°C, which is much lower than that of other manganese-containing catalysts [20,[23][24][25][26][27], noble metal catalysts [28] and other catalysts [29]. Moreover, compared with Mn-Ti catalyst, the deactivation rate of SnMn-Ti is slower, and the final stable activity is higher at temperatures below 300 °C.…”

Section: Stability Study Of Catalystsmentioning

confidence: 99%

SnO –MnO –TiO2 catalysts with high resistance to chlorine poisoning for low-temperature chlorobenzene oxidation

Zhao

Liu

2014

Applied Catalysis A: General

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“…But only a few studies were done over these types of catalysts in CVOCs oxidation. Vu et al [132] investigated 5 wt% (Mn ? Cu)/TiO 2 supported catalyst in the oxidation of chlorinated aromatic compound, chlorobenzene (CB).…”

Section: Cvocsmentioning

confidence: 99%

Catalysis in VOC Abatement

et al. 2011

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Volatile organic compounds (VOCs) are harmful to environment and human health. Catalytic oxidation has been used in VOC abatement for over 60 years, and it has proven to be an effective technology. A large variety of VOCs set high demands for the treatment, and therefore catalytic oxidation needs still to be developed further. This paper reviews current aspects and future research needs related to VOCs and catalytic VOC treatment concentrating on solvent-based, chlorinated and sulphur-containing VOCs.

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Removal of hazardous chlorinated VOCs over Mn–Cu mixed oxide based catalyst

Cited by 149 publications

References 37 publications

Catalytic behavior and synergistic effect of nanostructured mesoporous CuO-MnOx-CeO2 catalysts for chlorobenzene destruction

Catalytic behavior and synergistic effect of nanostructured mesoporous CuO-MnOx-CeO2 catalysts for chlorobenzene destruction

SnO –MnO –TiO2 catalysts with high resistance to chlorine poisoning for low-temperature chlorobenzene oxidation

Catalysis in VOC Abatement

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