Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance
Herein active manganese dioxide was prepared by different methods using KMnO 4 and MnSO 4 ·H 2 O as inorganic precursors. The impact of preparation methods on morphology and adsorption performance of the synthesized products was investigated. The experimental results show that the reaction temperatu...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-05-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617417752578 |
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| author | Hua-jun Chen Wenjie Tian Wuxiu Ding |
| author_facet | Hua-jun Chen Wenjie Tian Wuxiu Ding |
| author_sort | Hua-jun Chen |
| collection | DOAJ |
| description | Herein active manganese dioxide was prepared by different methods using KMnO 4 and MnSO 4 ·H 2 O as inorganic precursors. The impact of preparation methods on morphology and adsorption performance of the synthesized products was investigated. The experimental results show that the reaction temperature and pressure had a great effect on the morphology and adsorption performance of active manganese dioxide. The shape of active manganese dioxide prepared at room temperature and pressure was short rod-like while active manganese dioxide synthesized by hydrothermal method was mesoporous fibers and had better adsorption performance. The adsorption behavior of 2,4-dinitrophenol on mesoporous manganese dioxide was well described by Langmuir and Freundlich isotherm equation ( R 2 >0.99) and pseudo-second-order kinetic equation ( R 2 >0.99), so the adsorption process maybe a chemical and monolayer adsorption. The pH of solution had significant effect on the adsorption performance of 2,4-dinitrophenol on mesoporous manganese dioxide. The adsorption capacity was 2.539 mg/g in the condition of pH = 7. |
| format | Article |
| id | doaj-art-0c59661a0c7e45cb9aebf895cb62f686 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-05-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-0c59661a0c7e45cb9aebf895cb62f6862025-01-02T22:37:56ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-05-013610.1177/0263617417752578Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performanceHua-jun ChenWenjie TianWuxiu DingHerein active manganese dioxide was prepared by different methods using KMnO 4 and MnSO 4 ·H 2 O as inorganic precursors. The impact of preparation methods on morphology and adsorption performance of the synthesized products was investigated. The experimental results show that the reaction temperature and pressure had a great effect on the morphology and adsorption performance of active manganese dioxide. The shape of active manganese dioxide prepared at room temperature and pressure was short rod-like while active manganese dioxide synthesized by hydrothermal method was mesoporous fibers and had better adsorption performance. The adsorption behavior of 2,4-dinitrophenol on mesoporous manganese dioxide was well described by Langmuir and Freundlich isotherm equation ( R 2 >0.99) and pseudo-second-order kinetic equation ( R 2 >0.99), so the adsorption process maybe a chemical and monolayer adsorption. The pH of solution had significant effect on the adsorption performance of 2,4-dinitrophenol on mesoporous manganese dioxide. The adsorption capacity was 2.539 mg/g in the condition of pH = 7.https://doi.org/10.1177/0263617417752578 |
| spellingShingle | Hua-jun Chen Wenjie Tian Wuxiu Ding Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance Adsorption Science & Technology |
| title | Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance |
| title_full | Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance |
| title_fullStr | Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance |
| title_full_unstemmed | Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance |
| title_short | Effect of preparation methods on morphology of active manganese dioxide and 2,4-dinitrophenol adsorption performance |
| title_sort | effect of preparation methods on morphology of active manganese dioxide and 2 4 dinitrophenol adsorption performance |
| url | https://doi.org/10.1177/0263617417752578 |
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