Sodium alginate conversion into char via pyrolysis at the onset temperature

Guerretta, Federico; Magnacca, Giuliana; Franzoso, Flavia; Ivanchenko, Pavlo; Nisticò, Roberto

doi:10.1016/j.matlet.2018.09.127

Cited by 14 publications

(7 citation statements)

References 18 publications

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“…Alginates are linear copolymers made by (1-4)-linked residues of β-d-mannuronic acid and α-l-guluronic acid units (Scheme 1A), isolated from the cell walls of various species of brown algae (Phaeophyceae) [3,4], which are traditionally harvested and used also in industrial productions [5,6]. In alginate structure, abundant free hydroxyl and carboxyl groups are distributed along the backbone chain of the polymer [7].…”

Section: Introductionmentioning

confidence: 99%

The Innovation Comes from the Sea: Chitosan and Alginate Hybrid Gels and Films as Sustainable Materials for Wastewater Remediation

Tummino

Magnacca

Cimino

et al. 2020

IJMS

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The growing utilization of renewable and residual biomasses for environmental preservation and remediation are important goals to be pursued to minimize the environmental impact of human activities. In this paper, sodium alginate (derived from brown algae) was crosslinked using chitosan (mainly derived from the exoskeleton of crustaceans) in the presence of biowaste-derived substances isolated from green compost (BBS-GC), to produce hydrogels and dried films. The obtained materials were tested as adsorbents for wastewater remediation. To this purpose, gels were characterized using a multi-analytical approach and used as active substrates for the removal of three differently-charged molecules, chosen as model pollutants: crystal violet, rhodamine B, and orange II. The effectiveness of the gel formulations was demonstrated and attributed to the variety of active functionalities introduced by the different precursors, the structural factors and the peculiar physicochemical properties of the resulting materials.

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Section: Introductionmentioning

confidence: 99%

The Innovation Comes from the Sea: Chitosan and Alginate Hybrid Gels and Films as Sustainable Materials for Wastewater Remediation

Tummino

Magnacca

Cimino

et al. 2020

IJMS

Self Cite

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“…Among these materials, Algs are particularly promising: isolated from the cell walls of various species of brown algae, [20] they are low cost, biocompatible, and biodegradable. Due to this, Algs have been tested in many fields, [21, 22] including biomedical applications, [23] food technology, [24] energy, [25] cultural heritage preservation, [26] and environmental remediation [27] …”

Section: Introductionmentioning

confidence: 99%

Waste Cleaning Waste: Combining Alginate with Biowaste‐Derived Substances in Hydrogels and Films for Water Cleanup

Tummino

Nisticò

Riedo

et al. 2020

Chemistry A European J

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Biowaste‐derived substances isolated from green compost (BBS‐GC) are environmentally friendly reactants similar to humic substances, which contain multiple functionalities, that are suitable for adsorbing different kinds of pollutants in wastewater. Herein, sodium alginate (derived from brown algae) cross‐linked with both Ca2+ ions and BBS‐GC in the form of hydrogels and dried films are proposed as green, easy‐to‐form, and handleable materials for tertiary water treatments. The results show that both hydrogels and films are mechanically stable and can effectively remove differently charged dyes through an adsorption mechanism that can be described by the Freundlich model. BBS‐GC‐containing gels always performed better than samples prepared without BBS‐GC, revealing that such unconventional materials can integrate waste valorization and water decontamination, potentially providing social and environmental benefits.

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“…This result may be attributed to the alginic acid combines with various cations in seawater to easily form various alginates. During these last two thermal phenomena, probably occurred the formation of Na 2 CO 3 and the subsequent decomposition into Na 2 O [36,37]. The AGA residues at 600 °C were had the highest observed weight percentage, approximately 61.2 wt%, and even at 850 °C, the value was 52.73 wt%.…”

Section: Thermal Characteristics and Verify The Feasibility Of Model ...mentioning

confidence: 97%

Golden seaweed tides from beach inundations as a valuable sustainable fuel resource: Fast pyrolysis characteristics, product distribution and pathway study on Sargassum horneri based on model compounds

Zhu

Wang

et al. 2020

Algal Research

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Sodium alginate conversion into char via pyrolysis at the onset temperature

Cited by 14 publications

References 18 publications

The Innovation Comes from the Sea: Chitosan and Alginate Hybrid Gels and Films as Sustainable Materials for Wastewater Remediation

The Innovation Comes from the Sea: Chitosan and Alginate Hybrid Gels and Films as Sustainable Materials for Wastewater Remediation

Waste Cleaning Waste: Combining Alginate with Biowaste‐Derived Substances in Hydrogels and Films for Water Cleanup

Golden seaweed tides from beach inundations as a valuable sustainable fuel resource: Fast pyrolysis characteristics, product distribution and pathway study on Sargassum horneri based on model compounds

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