An eco-friendly construction of superwetting alginate-based aerogels with self-cleaning performance for multifunctional water treatment.
Int J Biol Macromol
; 261(Pt 2): 129766, 2024 Mar.
Article
in En
| MEDLINE
| ID: mdl-38290629
ABSTRACT
The increasingly complex oily wastewater has become a severe environmental issue worldwide, calling for the eco-friendly methods toward multifunctionality, high efficiency and sustainability. This work presents a superwetting alginate-based aerogels prepared by a feasible mineralization without the assistance of intermediates. In this strategy, in-situ grown ß-FeOOH nanoparticles on whole porous alginate aerogels, not only provides the hierarchical topography and more -OH groups, enhancing underwater oleophobicity (152 ± 4.4°) and fouling resistance of porous aerogels, but also endows with the outstanding photo-Fenton self-cleaning ability for pollutant degradation. As a result, the outstanding separation selectivity for oil and water (>99.5 %), and superior reusability is achieved without the significant diminution of permeation ability (897-1136 L·m-2·h-1). Furthermore, with the advantage of excellent photocatalytic performance under sunlight, the oily wastewater containing soluble organic pollutants can be remediated by simultaneous separation and photocatalysis decomposition under a gravity-driven filtration solely, revealing a promising potential for complex oily wastewater treatment with the rationally usage of sunlight.
Key words
Full text:
1
Collection:
01-internacional
Health context:
12_ODS3_hazardous_contamination
/
2_ODS3
Database:
MEDLINE
Main subject:
Calcinosis
/
Environmental Pollutants
Limits:
Humans
Language:
En
Journal:
Int J Biol Macromol
/
Int. j. biol. macromol
/
International journal of biological macromolecules
Year:
2024
Document type:
Article