A Fast and Sustainable Route to Bassanite Nanocrystals from Gypsum

Show simple item record

dc.identifier.uri http://dx.doi.org/10.15488/12814
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/12917
dc.contributor.author Maslyk, Marcel
dc.contributor.author Dallos, Zsolt
dc.contributor.author Koziol, Martha
dc.contributor.author Seiffert, Sebastian
dc.contributor.author Hieke, Tim
dc.contributor.author Petrović, Katharina
dc.contributor.author Kolb, Ute
dc.contributor.author Mondeshki, Mihail
dc.contributor.author Tremel, Wolfgang
dc.date.accessioned 2022-09-30T05:19:37Z
dc.date.available 2022-09-30T05:19:37Z
dc.date.issued 2022
dc.identifier.citation Maslyk, M.; Dallos, Z.; Koziol, M.; Seiffert, S.; Hieke, T. et al.: A Fast and Sustainable Route to Bassanite Nanocrystals from Gypsum. In: Advanced functional materials 32 (2022), Nr. 20, 2111852. DOI: https://doi.org/10.1002/adfm.202111852
dc.description.abstract Calcium sulfate is an important construction material. More than 1600 million square meters of interior surfaces are covered with plasterboards in Europe each year. Plasterboard is manufactured by transforming mined or recycled gypsum (CaSO4 × 2 H2O) to bassanite (CaSO4 × ½H2O) in a time- and energy-consuming heating process. A fast and sustainable way to produce bassanite by solvent-assisted milling, thereby eliminating the need for energy-intensive dehydration, is described. The milling reaction is complete after ≈200 min. Kinetic studies revealed that gypsum crystals transform to bassanite by shear forces during milling. 1H nuclear magnetic resonance (NMR) spectroscopic techniques and Fourier-transform infrared spectroscopy (FT-IR) show that the resulting bassanite nanocrystals are stabilized by surface functionalization with the auxiliary solvent methanol. Bassanite particles produced over extended milling times of 990 min form long-term stable dispersions without stabilizers and no signs of precipitation. Addition of water to bassanite leads to instant agglomeration, followed by a phase change to gypsum. The dispersibility in volatile methanol and the elucidation of the crystallization mechanism allow also for applications of the bassanite nanocrystals in hybrid materials. © 2022 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH. eng
dc.language.iso eng
dc.publisher Weinheim : Wiley-VCH
dc.relation.ispartofseries Advanced functional materials 32 (2022), Nr. 20
dc.rights CC BY-NC-ND 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject ball-milling eng
dc.subject bassanite eng
dc.subject calcium sulfate eng
dc.subject nanoparticles eng
dc.subject polymorphism eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.subject.ddc 540 | Chemie ger
dc.subject.ddc 530 | Physik ger
dc.title A Fast and Sustainable Route to Bassanite Nanocrystals from Gypsum eng
dc.type Article
dc.type Text
dc.relation.essn 1616-3028
dc.relation.doi https://doi.org/10.1002/adfm.202111852
dc.bibliographicCitation.issue 20
dc.bibliographicCitation.volume 32
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

Files in this item

This item appears in the following Collection(s):

Show simple item record


Search the repository


My Account

Usage Statistics