Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules
Herein, poly (allylamine hydrochloride) (PAH)/ poly (styrene sulfonic acid) sodium salt (PSS) microcapsules of (PAH/PSS)<sub>2</sub>PAH (P2P MCs) and (PAH/PSS)<sub>2</sub> (P2 MCs) were obtained by a layer-by-layer method. The P2 MCs show high adsorption capacity for Rhodamin...
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MDPI AG
2023-03-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/7/3010 |
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| author | Zhiqi Zhao Hongbing Zhou Xu Han Lun Han Zhenzhen Xu Peng Wang |
| author_facet | Zhiqi Zhao Hongbing Zhou Xu Han Lun Han Zhenzhen Xu Peng Wang |
| author_sort | Zhiqi Zhao |
| collection | DOAJ |
| description | Herein, poly (allylamine hydrochloride) (PAH)/ poly (styrene sulfonic acid) sodium salt (PSS) microcapsules of (PAH/PSS)<sub>2</sub>PAH (P2P MCs) and (PAH/PSS)<sub>2</sub> (P2 MCs) were obtained by a layer-by-layer method. The P2 MCs show high adsorption capacity for Rhodamine B (642.26 mg/g) and methylene blue (909.25 mg/g), with an extremely low equilibrium adsorption time (~20 min). The P2P MCs exhibited high adsorption capacities of reactive orange K-G (ROKG) and direct yellow 5G (DY5G) which were 404.79 and 451.56 mg/g. Adsorption processes of all dyes onto microcapsules were best described by the Langmuir isotherm model and a pseudo-second-order kinetic model. In addition, the P2P MCs loaded with reactive dyes (P2P–ROKG), could further adsorb rhodamine B (RhB) dye, and P2 MCs that had adsorbed cationic MB dyes could also be used for secondary adsorption treatment of direct dye waste-water, respectively. The present work confirmed that P2P and P2 MCs were expected to become an excellent adsorbent in the water treatment industry. |
| first_indexed | 2024-03-11T05:30:09Z |
| format | Article |
| id | doaj.art-d14ab85d3ead425db8ad305c40db04a1 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T05:30:09Z |
| publishDate | 2023-03-01 |
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| series | Molecules |
| spelling | doaj.art-d14ab85d3ead425db8ad305c40db04a12023-11-17T17:12:13ZengMDPI AGMolecules1420-30492023-03-01287301010.3390/molecules28073010Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte MicrocapsulesZhiqi Zhao0Hongbing Zhou1Xu Han2Lun Han3Zhenzhen Xu4Peng Wang5School of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, ChinaZhejiang Huaguang Automotive Interior Decoration Co., Ltd., Rui’an 325200, ChinaSchool of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, ChinaHerein, poly (allylamine hydrochloride) (PAH)/ poly (styrene sulfonic acid) sodium salt (PSS) microcapsules of (PAH/PSS)<sub>2</sub>PAH (P2P MCs) and (PAH/PSS)<sub>2</sub> (P2 MCs) were obtained by a layer-by-layer method. The P2 MCs show high adsorption capacity for Rhodamine B (642.26 mg/g) and methylene blue (909.25 mg/g), with an extremely low equilibrium adsorption time (~20 min). The P2P MCs exhibited high adsorption capacities of reactive orange K-G (ROKG) and direct yellow 5G (DY5G) which were 404.79 and 451.56 mg/g. Adsorption processes of all dyes onto microcapsules were best described by the Langmuir isotherm model and a pseudo-second-order kinetic model. In addition, the P2P MCs loaded with reactive dyes (P2P–ROKG), could further adsorb rhodamine B (RhB) dye, and P2 MCs that had adsorbed cationic MB dyes could also be used for secondary adsorption treatment of direct dye waste-water, respectively. The present work confirmed that P2P and P2 MCs were expected to become an excellent adsorbent in the water treatment industry.https://www.mdpi.com/1420-3049/28/7/3010polyelectrolyte microcapsuledyes removalwater treatmenthigh adsorption capacityfast adsorption |
| spellingShingle | Zhiqi Zhao Hongbing Zhou Xu Han Lun Han Zhenzhen Xu Peng Wang Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules Molecules polyelectrolyte microcapsule dyes removal water treatment high adsorption capacity fast adsorption |
| title | Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules |
| title_full | Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules |
| title_fullStr | Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules |
| title_full_unstemmed | Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules |
| title_short | Rapid, Highly-Efficient and Selective Removal of Anionic and Cationic Dyes from Wastewater Using Hollow Polyelectrolyte Microcapsules |
| title_sort | rapid highly efficient and selective removal of anionic and cationic dyes from wastewater using hollow polyelectrolyte microcapsules |
| topic | polyelectrolyte microcapsule dyes removal water treatment high adsorption capacity fast adsorption |
| url | https://www.mdpi.com/1420-3049/28/7/3010 |
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