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Carbohydrates: Origin and Destination of New Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Materials Characterization".

Deadline for manuscript submissions: closed (10 October 2022) | Viewed by 3277

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Departamento de Química Orgánica, Universidad de Córdoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
Interests: biomass residues; natural biomolecules; green functionalisation
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Special Issue Information

Dear Colleagues,

In recent years, social, economic, and environmental considerations have aimed the spotlight of the scientific and governmental communities on the use of natural renewable resources. This fact is not only motivated by the gradual depletion of fossil resources, but also by our global effort to enhance our progress in a more sustainable way. In this scenario, the development of new materials and processes is key. Carbohydrates, a natural source of plenty of products, are becoming a valuable platform for this purpose.

In this Special Issue, works related to carbohydrates as the origin and destination of new materials will be considered, including topics such as:

  • New biomaterials based on vegetable carbohydrates (cellulose, hemicelluloses, starches, pectins, derivatives, etc.) for applications in biotechnology;
  • New biomaterials based on vegetable carbohydrates (cellulose, hemicelluloses, starches, pectins, derivatives, etc.) for applications in biotechnology;
  • Green processes for the fractionation and transformation of biomass using new catalytic materials (catalysts, biocatalysts, photocatalysts) that improve the efficiency of new technologies (microwaves, ultrasound, mechanochemistry, photochemistry) for obtaining carbohydrates and their derivatives.

Dr. Araceli García
Guest Editor

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Keywords

  • carbohydrates
  • chitin
  • cellulose
  • biomaterials
  • green chemistry
  • photochemistry

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Published Papers (1 paper)

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Research

14 pages, 4890 KiB  
Article
Preparation of Poly(acrylic acid-acrylamide/starch) Composite and Its Adsorption Properties for Mercury (II)
by Wenjuan Zhu, Zhiyong Yang, Akram Yasin, Yanxia Liu and Letao Zhang
Materials 2021, 14(12), 3277; https://doi.org/10.3390/ma14123277 - 14 Jun 2021
Cited by 9 | Viewed by 2714
Abstract
The poly(acrylic acid-acrylamide/starch) composite was synthesized by solution polymerization, aiming to adsorb mercury (II) in water. The resulted copolymer was characterized by particle size exclusion chromatography (SEC), Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), scanning electron microscopy (SEM) and dynamic light scattering particle [...] Read more.
The poly(acrylic acid-acrylamide/starch) composite was synthesized by solution polymerization, aiming to adsorb mercury (II) in water. The resulted copolymer was characterized by particle size exclusion chromatography (SEC), Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TG), scanning electron microscopy (SEM) and dynamic light scattering particle size analyzer (DLS). It turned out that starch was successfully incorporated with the macromolecular polymer matrix and played a key role for improving the performance of the composites. These characterization results showed that the graft copolymer exhibited narrow molecular weight distribution, rough but uniform morphology, good thermal stability and narrow particle size distribution. The graft copolymer was used to remove Hg(II) ions from aqueous solution. The effects of contact time, pH value, initial mercury (II) concentration and temperature on the adsorption capacity of Hg(II) ions were researched. It was found that after 120 min of interaction, poly(acrylic acid-acrylamide/starch) composite achieved the maximum adsorption capacity of 19.23 mg·g−1 to Hg(II) ions with initial concentration of 15 mg·L−1, pH of 5.5 at 45 °C. Compared with other studies with the same purpose, the composites synthesized in this study present high adsorption properties for Hg(II) ion in dilute solution. The adsorption kinetics of Hg(II) on the poly(acrylic acid-acrylamide/starch) composite fits well with the pseudo second order model. Full article
(This article belongs to the Special Issue Carbohydrates: Origin and Destination of New Materials)
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