<abstract xmlns="http://www.w3.org/1999/xhtml">This study presents the synthesis of geopolymer materials designed for application as self-supporting zeolite membranes. For this purpose, batches of metakaolin activated with sodium silicate and sodium hydroxide were used. During synthesis, it was assumed that low temperatures are sufficient to receive the membranes. The composition of raw materials and temperature of activation were selected in such a way so as to correspond to the basic chemical compositions and synthesis conditions of sodalite as well as zeolites A and X. Additionally, the structural and textural properties of geopolymers were determined. The results show that it is possible to obtain composite zeolite structures in an amorphous matrix. A number of synthesized materials were used in the sorption of selected heavy metal cations (Ni2+, Zn2+, Pb2+ and Cd2+). It was concluded that the investigated geopolymerization process may be applied to obtain a material with potential use as a heavy metal sorbent.</abstract>

This study presents the synthesis of geopolymer materials designed for application as self-supporting zeolite membranes. For this purpose, batches of metakaolin activated with sodium silicate and sodium hydroxide were used. During synthesis, it was assumed that low temperatures are sufficient to receive the membranes. The composition of raw materials and temperature of activation were selected in such a way so as to correspond to the basic chemical compositions and synthesis conditions of sodalite as well as zeolites A and X. Additionally, the structural and textural properties of geopolymers were determined. The results show that it is possible to obtain composite zeolite structures in an amorphous matrix. A number of synthesized materials were used in the sorption of selected heavy metal cations (Ni2+, Zn2+, Pb2+ and Cd2+). It was concluded that the investigated geopolymerization process may be applied to obtain a material with potential use as a heavy metal sorbent.

Conditions of synthesis and structure of metakaolin-based geopolymers: application as heavy metal cation sorbent

Faculty of Materials Science and Ceramics

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This study presents the synthesis of geopolymer materials designed for application as self-supporting zeolite membranes. For this purpose, batches of...

Conditions of synthesis and structure of metakaolin-based geopolymers: application as heavy metal cation sorbent

Publié en ligne: 29 déc. 2017

Pages: 103 - 109

DOI: https://doi.org/10.1515/pjct-2017-0075

Mots clés
metakaolin, geopolymers, structural and textural properties, heavy metal sorbent

© 2017 Magdalena Król et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Conditions of synthesis and structure of metakaolin-based geopolymers: application as heavy metal cation sorbent

Publié en ligne: 29 déc. 2017

Pages: 103 - 109

DOI: https://doi.org/10.1515/pjct-2017-0075

Mots clésmetakaolin, geopolymers, structural and textural properties, heavy metal sorbent

© 2017 Magdalena Król et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
metakaolin, geopolymers, structural and textural properties, heavy metal sorbent