Fabrication of Porous Adsorbents Templated from Capillary Foam Stabilized with Chlorella for Highly Efficient Removal of Cationic Dyes

The thermodynamic instability of conventional aqueous foam‐stabilized surfactants is a critical bottleneck in the construction of porous materials. Herein, a novel strategy is proposed for preparing a capillary foam based on Chlorella and utilizing it as a template for constructing porous materials...

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Bibliographic Details
Published in:Chemistry, an Asian journal an Asian journal, 2024-10, Vol.19 (19), p.e202400275-n/a
Main Authors: Yu, Hui, Zhu, Yongfeng, Duan, Fangzhi, Hui, Aiping, Wang, Aiqin
Format: Article
Language:English
Subjects:
Adsorption
adsorption cycle
Capillary aqueous foam
Cationic dyes
Chlorella
Interface stability
Methylene blue
Porous materials
porous polymer
Shear forces
Suspension bridges
Thermal regeneration
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Summary:The thermodynamic instability of conventional aqueous foam‐stabilized surfactants is a critical bottleneck in the construction of porous materials. Herein, a novel strategy is proposed for preparing a capillary foam based on Chlorella and utilizing it as a template for constructing porous materials with high‐efficiency adsorption. The capillary foam was stabilized by Chlorella particles enclosed within a gel network of oil bridges connecting the particles (capillary suspension). Chlorella particles, which act as stable particles, form oil bridges and are distributed at the phase interface of the capillary foam. These particles exhibited resistance to shear forces, allowing the formation of a long‐term stable capillary foam. Using this foam as a template, a porous material with outstanding adsorption performance for Methylene Blue (MB) and Brilliant Green (BG) dyes was successfully constructed. Additionally, the material exhibited a sustained high adsorption performance even after five thermal regeneration‐adsorption cycles. In conclusion, this study presents a green and straightforward method for constructing capillary foams with high stability, which is a promising approach for developing porous materials with exceptional adsorption and regeneration properties for dyes. This study introduced a green and straightforward method for constructing Capillary foam with high stability, providing a promising approach for the development of porous materials with exceptional adsorption and regeneration properties for dyes.
ISSN:1861-4728
1861-471X
1861-471X
DOI:10.1002/asia.202400275