Characterization of hybrid inorganic/organic polymer-type materials used for arsenic removal from drinking water

Synthesis and characterization of hybrid materials containing iron oxide for removal of sulfides from water

“…The synthesis of the hybrid polymers containing iron oxides, described in [12] proceeded in three stages as shown in scheme 1.…”

“…Ion exchangers are particularly good raw materials for producing these types of hybrid adsorbents, since they are characterized by large surface areas, a well-developed pore structure and the presence of ionic functional groups (through which an inorganic deposit can be introduced into the structure of an organic polymer). Among them, various reactive functional polymers including anion exchangers [11,12] cation exchangers [13][14][15][16] and macromolecular oxidizers [17] were used as polymeric supporting materials for iron oxide deposition. Iron oxide precipitation within the structure of a polymeric matrix containing different functional groups and porous characteristics makes the process more complex than precipitation conducted in the solution.…”

Oxidation and adsorption of arsenic species by means of hybrid polymer containing manganese oxides

“…The product—hybrid polymer—combines the mechanical and hydraulic properties of the host polymer with the specific sorptive/oxidative properties of an inorganic deposit. The majority of studies described in the literature concern the synthesis of hybrid polymers with dispersed iron oxides, used for removal of different organic and inorganic pollutants from waters . There are only a few studies in the literature that investigate the possibility of synthesis and use of polymers containing manganese oxide as a sorbent and heterogeneous oxidant for toxic water contaminants such as arsenic, cadmium, lead, or radionuclides …”

New inorganic (an)ion exchangers based on Mg–Al hydrous oxides: (Alkoxide-free) sol–gel synthesis and characterisation

“…Most of the works deal with preparation or modification of (or with) alumina and iron-based materials [20][21][22][23][24][25][26][27][28].…”