Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde
Formaldehyde is a colorless, highly toxic, and flammable gas that is harmful to human health. Recently, many efforts have been devoted to the application of activated carbon to absorb formaldehyde. In this work, lignocellulose-based activated carbon fiber paper (LACFP) loaded with manganese dioxide...
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| Format: | Article |
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Frontiers Media S.A.
2019-12-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2019.00808/full |
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| author | Xiao Zhang Chunhui Zhang Qixuan Lin Banggui Cheng Xinxin Liu Feng Peng Junli Ren |
| author_facet | Xiao Zhang Chunhui Zhang Qixuan Lin Banggui Cheng Xinxin Liu Feng Peng Junli Ren |
| author_sort | Xiao Zhang |
| collection | DOAJ |
| description | Formaldehyde is a colorless, highly toxic, and flammable gas that is harmful to human health. Recently, many efforts have been devoted to the application of activated carbon to absorb formaldehyde. In this work, lignocellulose-based activated carbon fiber paper (LACFP) loaded with manganese dioxide (MnO2) was fabricated for the adsorption and in-situ catalytic degradation of formaldehyde. LACFP was prepared by two-stage carbonization and activation of sisal hemp pulp-formed paper and was then impregnated with manganese sulfate (MnSO4) and potassium permanganate (KMnO4) solutions; MnO2 then formed by in situ growth on the LACFP base by calcination. The catalytic performance of MnO2-loaded LACFP for formaldehyde was then investigated. It was found that the suitable carbonization conditions were elevating the temperature first by raising it at 10°C/min from room temperature to 280°C, then at 2°C/min from 280 to 400°C, maintaining the temperature at 400°C for 1 h, and then increasing it quickly from 400 to 700°C at 15°C/min. The conditions used for activation were similar to those for carbonization, with the temperature additionally being held at 700°C for 2 h. The conditions mentioned above were optimized to maintain the fiber structure and shape integrity of the paper, being conducive to loading with catalytically active substances. Regarding the catalytic activity of MnO2-loaded LACFP, the concentration of formaldehyde decreased by 59 ± 6 ppm and the concentration of ΔCO2 increased by 75 ± 3 ppm when the reaction proceeded at room temperature for 10 h. The results indicated that MnO2-loaded LACFP could catalyze formaldehyde into non-toxic substances. |
| first_indexed | 2024-12-21T03:30:17Z |
| format | Article |
| id | doaj.art-6f17d302b25243f8942ddef210c7c4a4 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-21T03:30:17Z |
| publishDate | 2019-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-6f17d302b25243f8942ddef210c7c4a42022-12-21T19:17:28ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462019-12-01710.3389/fchem.2019.00808500613Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of FormaldehydeXiao Zhang0Chunhui Zhang1Qixuan Lin2Banggui Cheng3Xinxin Liu4Feng Peng5Junli Ren6State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, ChinaSchool of Light Industry and Engineering, South China University of Technology, Guangzhou, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, ChinaCollege of Materials Science and Technology, Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, ChinaFormaldehyde is a colorless, highly toxic, and flammable gas that is harmful to human health. Recently, many efforts have been devoted to the application of activated carbon to absorb formaldehyde. In this work, lignocellulose-based activated carbon fiber paper (LACFP) loaded with manganese dioxide (MnO2) was fabricated for the adsorption and in-situ catalytic degradation of formaldehyde. LACFP was prepared by two-stage carbonization and activation of sisal hemp pulp-formed paper and was then impregnated with manganese sulfate (MnSO4) and potassium permanganate (KMnO4) solutions; MnO2 then formed by in situ growth on the LACFP base by calcination. The catalytic performance of MnO2-loaded LACFP for formaldehyde was then investigated. It was found that the suitable carbonization conditions were elevating the temperature first by raising it at 10°C/min from room temperature to 280°C, then at 2°C/min from 280 to 400°C, maintaining the temperature at 400°C for 1 h, and then increasing it quickly from 400 to 700°C at 15°C/min. The conditions used for activation were similar to those for carbonization, with the temperature additionally being held at 700°C for 2 h. The conditions mentioned above were optimized to maintain the fiber structure and shape integrity of the paper, being conducive to loading with catalytically active substances. Regarding the catalytic activity of MnO2-loaded LACFP, the concentration of formaldehyde decreased by 59 ± 6 ppm and the concentration of ΔCO2 increased by 75 ± 3 ppm when the reaction proceeded at room temperature for 10 h. The results indicated that MnO2-loaded LACFP could catalyze formaldehyde into non-toxic substances.https://www.frontiersin.org/article/10.3389/fchem.2019.00808/fulllignocellulose biomasscarbon fiber papermanganese dioxidecatalytic degradationformaldehyde |
| spellingShingle | Xiao Zhang Chunhui Zhang Qixuan Lin Banggui Cheng Xinxin Liu Feng Peng Junli Ren Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde Frontiers in Chemistry lignocellulose biomass carbon fiber paper manganese dioxide catalytic degradation formaldehyde |
| title | Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde |
| title_full | Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde |
| title_fullStr | Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde |
| title_full_unstemmed | Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde |
| title_short | Preparation of Lignocellulose-Based Activated Carbon Paper as a Manganese Dioxide Carrier for Adsorption and in-situ Catalytic Degradation of Formaldehyde |
| title_sort | preparation of lignocellulose based activated carbon paper as a manganese dioxide carrier for adsorption and in situ catalytic degradation of formaldehyde |
| topic | lignocellulose biomass carbon fiber paper manganese dioxide catalytic degradation formaldehyde |
| url | https://www.frontiersin.org/article/10.3389/fchem.2019.00808/full |
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