Toluene Conversion by Using Different Morphology MnO2 Catalyst
Abstract MnOx was one of the important catalysts for the degradation of organic compounds. MnO2 with different morphology (nanotube, nanowire, nanocubic and nanoflower) were synthesized by hydrothermal method using KMnO4 and MnSO4 as precursors. Firstly, their structures were studied by X-ray diffra...
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| Format: | Article |
| Language: | English |
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Springer
2022-01-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.210365 |
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| _version_ | 1825197537994211328 |
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| author | Huaijian Wang Fangtong Liu Wenting Yang Chenglong Yu Huanhuan Xiong Jiaqi Li Meijuan Lu |
| author_facet | Huaijian Wang Fangtong Liu Wenting Yang Chenglong Yu Huanhuan Xiong Jiaqi Li Meijuan Lu |
| author_sort | Huaijian Wang |
| collection | DOAJ |
| description | Abstract MnOx was one of the important catalysts for the degradation of organic compounds. MnO2 with different morphology (nanotube, nanowire, nanocubic and nanoflower) were synthesized by hydrothermal method using KMnO4 and MnSO4 as precursors. Firstly, their structures were studied by X-ray diffraction (XRD), N2 adsorption desorption curve, H2 temperature programmed reduction (H2-TPR) and X-ray electron spectroscopy (XPS). Next, their catalytic conversion test for toluene was carried out under the condition of toluene concentration of 500 ppm and gas flow rate of 200 mL min−1. The results showed that the crystal structure of nanotube and nanowire were α-MnO2, nanoflower was α-MnO2 phase and other crystalline, the nanocube was β-MnO2. For the different morphology MnO2, their catalytic conversion activity for toluene were increased with the rise of temperature. Nanotube, nanowire, nanoflower and nanocube reached 100% toluene conversion at 225°C, 250°C, 275°C and 325°C, respectively. MnO2 nanotube showed the highest activity for toluene among all the samples, which attribute to the larger specific surface area, better low-temperature reduction performance and higher the Mn4+ content. |
| format | Article |
| id | doaj-art-cc238e3628d44738ae16ec34a23cf218 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-cc238e3628d44738ae16ec34a23cf2182025-02-09T12:18:42ZengSpringerAerosol and Air Quality Research1680-85842071-14092022-01-0122211010.4209/aaqr.210365Toluene Conversion by Using Different Morphology MnO2 CatalystHuaijian Wang0Fangtong Liu1Wenting Yang2Chenglong Yu3Huanhuan Xiong4Jiaqi Li5Meijuan Lu6School of Environmental and Land Resource Management, Jiangxi Agricultural UniversitySchool of Environmental and Land Resource Management, Jiangxi Agricultural UniversitySchool of Agricultural Sciences, Jiangxi Agricultural UniversitySchool of Environmental and Land Resource Management, Jiangxi Agricultural UniversitySchool of Environmental and Land Resource Management, Jiangxi Agricultural UniversitySchool of Environmental and Land Resource Management, Jiangxi Agricultural UniversitySchool of Environmental and Land Resource Management, Jiangxi Agricultural UniversityAbstract MnOx was one of the important catalysts for the degradation of organic compounds. MnO2 with different morphology (nanotube, nanowire, nanocubic and nanoflower) were synthesized by hydrothermal method using KMnO4 and MnSO4 as precursors. Firstly, their structures were studied by X-ray diffraction (XRD), N2 adsorption desorption curve, H2 temperature programmed reduction (H2-TPR) and X-ray electron spectroscopy (XPS). Next, their catalytic conversion test for toluene was carried out under the condition of toluene concentration of 500 ppm and gas flow rate of 200 mL min−1. The results showed that the crystal structure of nanotube and nanowire were α-MnO2, nanoflower was α-MnO2 phase and other crystalline, the nanocube was β-MnO2. For the different morphology MnO2, their catalytic conversion activity for toluene were increased with the rise of temperature. Nanotube, nanowire, nanoflower and nanocube reached 100% toluene conversion at 225°C, 250°C, 275°C and 325°C, respectively. MnO2 nanotube showed the highest activity for toluene among all the samples, which attribute to the larger specific surface area, better low-temperature reduction performance and higher the Mn4+ content.https://doi.org/10.4209/aaqr.210365MnO2 nanotubeMnO2 nanowireMnO2 nanocubeMnO2 nanoflowerToluene conversion |
| spellingShingle | Huaijian Wang Fangtong Liu Wenting Yang Chenglong Yu Huanhuan Xiong Jiaqi Li Meijuan Lu Toluene Conversion by Using Different Morphology MnO2 Catalyst Aerosol and Air Quality Research MnO2 nanotube MnO2 nanowire MnO2 nanocube MnO2 nanoflower Toluene conversion |
| title | Toluene Conversion by Using Different Morphology MnO2 Catalyst |
| title_full | Toluene Conversion by Using Different Morphology MnO2 Catalyst |
| title_fullStr | Toluene Conversion by Using Different Morphology MnO2 Catalyst |
| title_full_unstemmed | Toluene Conversion by Using Different Morphology MnO2 Catalyst |
| title_short | Toluene Conversion by Using Different Morphology MnO2 Catalyst |
| title_sort | toluene conversion by using different morphology mno2 catalyst |
| topic | MnO2 nanotube MnO2 nanowire MnO2 nanocube MnO2 nanoflower Toluene conversion |
| url | https://doi.org/10.4209/aaqr.210365 |
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