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Extraction, functionalization, and modification of laminarin for wastewater treatment: recent advances, future trends, and innovations
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DOI：10.1016/j.reactfunctpolym.2025.106618.png)
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Abstract
En 中文
This review serves as a thorough guidebook on the increasing promise of laminarin as a multifunctional biopolymer for sustainable wastewater treatment, reviewing advancements in terms of extraction, structural modification and application performance. Laminarin, a sulfated beta-glucan derived from brown macroalgae, (2-10 kDa) is becoming of interest because of its biodegradability and chemical versatility to bind a wide range of pollutants. This guide synthesizes advances in innovative, environmental-friendly, and high-yield extraction methods that aim to maximize yield and decrease energy and processing costs. Then it reviews the functionalization strategies (both physical and chemical) of laminarin such as grafting, crosslinking, incorporated nanoparticles and forming composites of laminarin with other polymers, and discusses these unique strategies to dramatically enhance removal of dyes, heavy metals, pharmaceuticals, and emerging contaminants from wastewater. The structure-property relationships are presented to illustrate how branching degree, sulfate groups, and introduced functionalities dictate adsorption capacity, selectivity, diffusion behavior, and reusability. Economic estimates indicate that green-extracted, moderately functionalized laminarin has better economic competitiveness than traditional adsorbents and can be scaled. Notable limitations including feedstock variability, constraints on production at scale, and unmodified laminarin's instability in harsh effluents are critically appraised. To mitigate these limitations, the review provides future pathways towards hybrid nanolaminarin systems, stimuli-responsive materials, and circular-economy regeneration approaches. The intersection of sciences, engineering, and sustainability deem this review a reference for the development of nextgeneration laminarin-based materials for efficient and green wastewater purification.
Keywords:
Laminarin
Extraction techniques
Modification and wastewater treatment
Journal
R
IF:
5.1
Papers:
23
Citations:
0
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Cited Papers