DESIGN, CHARACTERIZATION AND ENVIRONMENTAL APPLICATIONS OF HYDROGELS WITH METAL ION COORDINATION PROPERTIES

LÁZARO MARTÍNEZ, JUAN MANUEL; CAMPODALL ORTO, VIVIANA

HYDROGELS

INTECH Ed

Lugar: Rijeka; Año: 2016; p. 101 - 130

In this chapter, we will discuss the design and synthesis of hydrogels and related polymeric materials with metal ion coordination properties, with the aim to review the main synthetic strategies used in the area. Then, we will focus on the solid-state nuclear magnetic resonance (ss-NMR) spectroscopic technique due to its importance as a structural elucidation tool both in powdered and hydrated state, with emphasis on cross-polarization magic angle spinning (CP-MAS) and high-resolution magic angle spinning (HRMAS). Also, we will explain different adsorption models, with the aim to present the methods most commonly used to analyze the uptake properties of hydrogel materials towards metal ions or organic compounds. Finally, we will discuss the applications of these materials for the removal of heavy metal ions and organic compounds, in terms of efficiency in the uptake of these ions and the different techniques commonly used to study the coordination process and the generation of reactive oxygen species (ROS) from hydrogen peroxide (H2O2). The main aim is to provide scientists with a review of the spectroscopic techniques most commonly used for bulk and surface characterization of non-soluble materials.