Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning
The natural adsorption material montmorillonite (MMT) was selected, and cellulose acetate (CA) was used as the loading substrate to design and prepare a kind of green and environment-friendly recyclable porous composite fiber membrane with good heavy metal ion adsorption performance. Acetic acid mod...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/24/5458 |
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| author | Hongjing Zhang Qingyuan Mu Xiaotian Yu Ke Zhou Xu Chen Haitao Hao Yongqiang Li |
| author_facet | Hongjing Zhang Qingyuan Mu Xiaotian Yu Ke Zhou Xu Chen Haitao Hao Yongqiang Li |
| author_sort | Hongjing Zhang |
| collection | DOAJ |
| description | The natural adsorption material montmorillonite (MMT) was selected, and cellulose acetate (CA) was used as the loading substrate to design and prepare a kind of green and environment-friendly recyclable porous composite fiber membrane with good heavy metal ion adsorption performance. Acetic acid modified montmorillonite (HCl-MMT), sodium dodecyl sulfonate modified montmorillonite (SDS-MMT), and chitosan modified montmorillonite (CTS-MMT) were prepared by inorganic modification and organic modification, and the porous MMT/CA composite fiber membrane was constructed by centrifugal spinning equipment. The morphological and structural changes of MMT before and after modification and their effects on porous composite fiber membranes were investigated. The morphology, structure, and adsorption properties of the composite fibers were characterized by scanning electron microscopy (SEM) and atomic absorption spectrometry (ASS). The experimental results showed that the maximum adsorption capacity of Cu<sup>2+</sup> on the prepared 5 wt% CTS-MMT composite fiber membrane was 60.272 mg/g after 10 h static adsorption. The adsorption of Cu<sup>2+</sup> by a porous composite fiber membrane conforms to the quasi-second-order kinetic model and Langmuir isothermal adsorption model. The main factor of the Cu<sup>2+</sup> adsorption rate is chemical adsorption, and the adsorption mechanism is mainly monolayer adsorption. |
| first_indexed | 2024-03-09T15:56:35Z |
| format | Article |
| id | doaj.art-88988b1261ce47c5ad04e9595e2348ee |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T15:56:35Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-88988b1261ce47c5ad04e9595e2348ee2023-11-24T17:32:29ZengMDPI AGPolymers2073-43602022-12-011424545810.3390/polym14245458Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal SpinningHongjing Zhang0Qingyuan Mu1Xiaotian Yu2Ke Zhou3Xu Chen4Haitao Hao5Yongqiang Li6Key Laboratory of Advanced Textile Materials and Manufacturing Technology, International Silk Institute, College of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaEngineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaEngineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaEngineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaEngineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaEngineering Research Center for Eco-Dyeing and Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaKey Laboratory of Advanced Textile Materials and Manufacturing Technology, International Silk Institute, College of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaThe natural adsorption material montmorillonite (MMT) was selected, and cellulose acetate (CA) was used as the loading substrate to design and prepare a kind of green and environment-friendly recyclable porous composite fiber membrane with good heavy metal ion adsorption performance. Acetic acid modified montmorillonite (HCl-MMT), sodium dodecyl sulfonate modified montmorillonite (SDS-MMT), and chitosan modified montmorillonite (CTS-MMT) were prepared by inorganic modification and organic modification, and the porous MMT/CA composite fiber membrane was constructed by centrifugal spinning equipment. The morphological and structural changes of MMT before and after modification and their effects on porous composite fiber membranes were investigated. The morphology, structure, and adsorption properties of the composite fibers were characterized by scanning electron microscopy (SEM) and atomic absorption spectrometry (ASS). The experimental results showed that the maximum adsorption capacity of Cu<sup>2+</sup> on the prepared 5 wt% CTS-MMT composite fiber membrane was 60.272 mg/g after 10 h static adsorption. The adsorption of Cu<sup>2+</sup> by a porous composite fiber membrane conforms to the quasi-second-order kinetic model and Langmuir isothermal adsorption model. The main factor of the Cu<sup>2+</sup> adsorption rate is chemical adsorption, and the adsorption mechanism is mainly monolayer adsorption.https://www.mdpi.com/2073-4360/14/24/5458cellulose acetatemontmorillonite modificationporous fiber membraneadsorption of heavy metal ionsadsorption kinetic |
| spellingShingle | Hongjing Zhang Qingyuan Mu Xiaotian Yu Ke Zhou Xu Chen Haitao Hao Yongqiang Li Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning Polymers cellulose acetate montmorillonite modification porous fiber membrane adsorption of heavy metal ions adsorption kinetic |
| title | Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning |
| title_full | Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning |
| title_fullStr | Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning |
| title_full_unstemmed | Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning |
| title_short | Preparation of Copper Ion Adsorbed Modified Montmorillonite/Cellulose Acetate Porous Composite Fiber Membrane by Centrifugal Spinning |
| title_sort | preparation of copper ion adsorbed modified montmorillonite cellulose acetate porous composite fiber membrane by centrifugal spinning |
| topic | cellulose acetate montmorillonite modification porous fiber membrane adsorption of heavy metal ions adsorption kinetic |
| url | https://www.mdpi.com/2073-4360/14/24/5458 |
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