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Polymers
Special Issues
Algae-Based Polymers: Current Trends and Emerging Opportunities
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Algae-Based Polymers: Current Trends and Emerging Opportunities

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Biomacromolecules, Biobased and Biodegradable Polymers".

Deadline for manuscript submissions: closed (31 October 2019) | Viewed by 6287

Special Issue Editors

Dr. Matteo Gigli

E-Mail Website
Guest Editor
Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172 Venezia-Mestre, Italy
Interests: biodegradable and bio-based polymers; thermoplastic elastomers; biodegradation; tissue engineering; packaging, green energy storage, ion-exchange membranes
Special Issues, Collections and Topics in MDPI journals
Dr. Heiko Lange

E-Mail Website
Guest Editor
Department of Pharmacy, University of Naples Federico II, Naples, Italy
Interests: biomaterials; natural polymers; polyphenols; lignin; tannin; micro- and nanovesicles; nanoparticles; nanofibers; targeted delivery; structure elucidation; synthetic chemistry; flow chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Plastics play a crucial role in most aspects of modern society. However, the well-known environmental burdens associated with the massive use of these materials have exposed the need for the development of greener and more sustainable solutions.

Among possible natural sources of biopolymers, aquatic biomass, such as macro- and micro-algae, offers a rich variety of valuable molecules. Polysaccharides, proteins, lipids, and polyphenols are in fact the main classes of materials found in algae, which have been employed for packaging, food, pharmaceutical, and other biomedical applications.

This Special Issue aims at establishing a platform where the latest discoveries in the field of production and exploitation of algae-based materials can be shared, covering all interdisciplinary aspects of this research area, from algae identification and cultivation to materials’ functional properties and final application. Authors are encouraged to submit their studies in the form of full papers, communications or critical reviews.

Dr. Matteo Gigli
Dr. Heiko Lange
Guest Editors

Keywords

  • algae biomass
  • microalgae
  • marine polymers
  • biopolymers
  • polyphenols
  • polysaccharides
  • lipids
  • alginates
  • phlorotannins

Published Papers (1 paper)

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Research

17 pages, 4076 KiB  
Article
Boron Removal from Aqueous Solutions by Using a Novel Alginate-Based Sorbent: Comparison with Al2O3 Particles
by Hary Demey, Jesus Barron-Zambrano, Takoua Mhadhbi, Hafida Miloudi, Zhen Yang, Montserrat Ruiz and Ana Maria Sastre
Polymers 2019, 11(9), 1509; https://doi.org/10.3390/polym11091509 - 16 Sep 2019
Cited by 32 | Viewed by 5054
Abstract
Boron removal was evaluated in the present work by using calcium alginate beads (CA) and a novel composite based on alginate–alumina (CAAl) as sorbents in a batch system. The effects of different parameters such as pH, temperature, contact time, and composition of alginate [...] Read more.
Boron removal was evaluated in the present work by using calcium alginate beads (CA) and a novel composite based on alginate–alumina (CAAl) as sorbents in a batch system. The effects of different parameters such as pH, temperature, contact time, and composition of alginate (at different concentrations of guluronic and mannuronic acids) on boron sorption were investigated. The results confirm that calcium alginate beads (CA) exhibited a better adsorption capacity in a slightly basic medium, and the composite alginate–alumina (CAAl) exhibited improved boron removal at neutral pH. Sorption isotherm studies were performed and the Langmuir isotherm model was found to fit the experimental data. The maximum sorption capacities were 4.5 mmol g−1 and 5.2 mmol g−1, using CA and CAAl, respectively. Thermodynamic parameters such as change in free energy (ΔG0), enthalpy (ΔH0), and entropy (ΔS0) were also determined. The pseudo-first-order and pseudo-second-order rate equations (PFORE and PSORE, respectively) were tested to fit the kinetic data; the experimental results can be better described with PSORE. The regeneration of the loaded sorbents was demonstrated by using dilute HCl solution (distilled water at pH 3) as eluent for metal recovery. Full article
(This article belongs to the Special Issue Algae-Based Polymers: Current Trends and Emerging Opportunities)
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