Prussian Blue: A Safe Pigment with Zeolitic-Like Activity
Prussian blue (PB) and PB analogues (PBA) are coordination network materials that present important similarities with zeolites concretely with their ability of adsorbing cations. Depending on the conditions of preparation, which is cheap and easy, PB can be classified into soluble PB and insoluble P...
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doaj-045dfb77143b4fd9afdc629514f2e4222021-01-16T00:00:04ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-01-012278078010.3390/ijms22020780Prussian Blue: A Safe Pigment with Zeolitic-Like ActivityJoan Estelrich0Maria Antònia Busquets1Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Avda., Joan XXIII, 27–31, 08028 Barcelona, SpainDepartment of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Avda., Joan XXIII, 27–31, 08028 Barcelona, SpainPrussian blue (PB) and PB analogues (PBA) are coordination network materials that present important similarities with zeolites concretely with their ability of adsorbing cations. Depending on the conditions of preparation, which is cheap and easy, PB can be classified into soluble PB and insoluble PB. The zeolitic-like properties are mainly inherent to insoluble form. This form presents some defects in its cubic lattice resulting in an open structure. The vacancies make PB capable of taking up and trapping ions or molecules into the lattice. Important adsorption characteristics of PB are a high specific area (370 m<sup>2</sup> g<sup>−1</sup> determined according the BET theory), uniform pore diameter, and large pore width. PB has numerous applications in many scientific and technological fields. PB are assembled into nanoparticles that, due to their biosafety and biocompatibility, can be used for biomedical applications. PB and PBA have been shown to be excellent sorbents of radioactive cesium and radioactive and nonradioactive thallium. Other cations adsorbed by PB are K<sup>+</sup>, Na<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, and some divalent cations. PB can also capture gaseous molecules, hydrocarbons, and even luminescent molecules such as 2-aminoanthracene. As the main adsorptive application of PB is the selective removal of cations from the environment, it is important to easily separate the sorbent of the purified solution. To facilitate this, PB is encapsulated into a polymer or coats a support, sometimes magnetic particles. Finally, is remarkable to point out that PB can be recycled and the adsorbed material can be recovered.https://www.mdpi.com/1422-0067/22/2/780mesoporous adsorbentscesium removalthallium removalisotherm modelskinetics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Joan Estelrich Maria Antònia Busquets |
spellingShingle |
Joan Estelrich Maria Antònia Busquets Prussian Blue: A Safe Pigment with Zeolitic-Like Activity International Journal of Molecular Sciences mesoporous adsorbents cesium removal thallium removal isotherm models kinetics |
author_facet |
Joan Estelrich Maria Antònia Busquets |
author_sort |
Joan Estelrich |
title |
Prussian Blue: A Safe Pigment with Zeolitic-Like Activity |
title_short |
Prussian Blue: A Safe Pigment with Zeolitic-Like Activity |
title_full |
Prussian Blue: A Safe Pigment with Zeolitic-Like Activity |
title_fullStr |
Prussian Blue: A Safe Pigment with Zeolitic-Like Activity |
title_full_unstemmed |
Prussian Blue: A Safe Pigment with Zeolitic-Like Activity |
title_sort |
prussian blue: a safe pigment with zeolitic-like activity |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1661-6596 1422-0067 |
publishDate |
2021-01-01 |
description |
Prussian blue (PB) and PB analogues (PBA) are coordination network materials that present important similarities with zeolites concretely with their ability of adsorbing cations. Depending on the conditions of preparation, which is cheap and easy, PB can be classified into soluble PB and insoluble PB. The zeolitic-like properties are mainly inherent to insoluble form. This form presents some defects in its cubic lattice resulting in an open structure. The vacancies make PB capable of taking up and trapping ions or molecules into the lattice. Important adsorption characteristics of PB are a high specific area (370 m<sup>2</sup> g<sup>−1</sup> determined according the BET theory), uniform pore diameter, and large pore width. PB has numerous applications in many scientific and technological fields. PB are assembled into nanoparticles that, due to their biosafety and biocompatibility, can be used for biomedical applications. PB and PBA have been shown to be excellent sorbents of radioactive cesium and radioactive and nonradioactive thallium. Other cations adsorbed by PB are K<sup>+</sup>, Na<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, and some divalent cations. PB can also capture gaseous molecules, hydrocarbons, and even luminescent molecules such as 2-aminoanthracene. As the main adsorptive application of PB is the selective removal of cations from the environment, it is important to easily separate the sorbent of the purified solution. To facilitate this, PB is encapsulated into a polymer or coats a support, sometimes magnetic particles. Finally, is remarkable to point out that PB can be recycled and the adsorbed material can be recovered. |
topic |
mesoporous adsorbents cesium removal thallium removal isotherm models kinetics |
url |
https://www.mdpi.com/1422-0067/22/2/780 |
work_keys_str_mv |
AT joanestelrich prussianblueasafepigmentwithzeoliticlikeactivity AT mariaantoniabusquets prussianblueasafepigmentwithzeoliticlikeactivity |
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