Zeolite-Supported Aggregate as Potential Antimicrobial Agents in Gypsum Composites.
Magdalena Katarzyna KrólJustyna Syguła-CholewińskaTomasz SawoszczukPublished in: Materials (Basel, Switzerland) (2022)
Relatively easy treatment of glass aggregates can lead to the formation of a highly porous zeolite aggregate. This study focuses on the possibility of using such an aggregate as an active additive to a gypsum binder. The physical properties of hardened gypsum composites with zeolite fillers doped with various metal ions (Ni 2+ , Cu 2+ , and Zn 2+ ) have been compared. In addition to studies of the basic physical properties of the composites, structural and microstructural studies as well as antimicrobial tests were performed. It was found that the parameters of the composites with the addition of various ions do not differ significantly from the reference but modifies the microstructure. Among other things, the ions analyzed reduce the microporosity of gypsum composites. Using all aggregates, a product with adequate strength (above 2 MPa) and thermal conductivity (about 0.35 W/m·K) appropriate for typical lightweight gypsum composites can be obtained. The bacteriostatic effect of formulations with copper and zinc against Escherichia coli and with copper against Staphylococcus aureus was found.
Keyphrases
- aqueous solution
- reduced graphene oxide
- staphylococcus aureus
- quantum dots
- escherichia coli
- visible light
- white matter
- physical activity
- metal organic framework
- oxide nanoparticles
- risk assessment
- highly efficient
- methicillin resistant staphylococcus aureus
- climate change
- candida albicans
- tissue engineering
- transition metal