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 |
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SAGE Publications
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. |
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issn | 0263-6174 2048-4038 |
language | English |
last_indexed | 2024-03-07T18:53:55Z |
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series | Adsorption Science & Technology |
spelling | doaj.art-0c59661a0c7e45cb9aebf895cb62f6862024-03-02T00:33:34ZengSAGE PublicationsAdsorption 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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