Antibacterial and Photocatalytic Activities of LDH-Based Sorbents of Different Compositions.
Anna Maria CardinaleStefano AlbertiAndrea Pietro ReverberiMichelina CatauroNicolò GhibaudoMarco FortunatoPublished in: Microorganisms (2023)
Layered double hydroxides (LDHs) play a fundamental role in the processes for the abatement of pollutants in water, with reference to heavy metal decontamination. The research on the topic is multiobjective target oriented, aiming at combining environmental remediation with the possibility of reusing a sorbent as many times as possible, turning it into a renewable resource. In this study, the antibacterial and catalytic properties of a ZnAl-SO 4 LDH and its resulting product after being subjected to a Cr(VI) remediation process are compared. Both solid substrates have also been tested after undergoing a thermal annealing process. The sorbent (previously described and tested for remediation) has been investigated for its antibacterial activity in view of further surgery and drug delivery applications. Finally, its photocatalytic properties have been experimentally tested in the degradation of a model pollutant, i.e., Methyl Orange (MO), under solar-simulated light. Identifying the best recycling strategy for these materials requires an accurate knowledge of their physicochemical properties. The results show that both the antimicrobial activity and the photocatalytic performance may considerably improve after thermal annealing.
Keyphrases
- heavy metals
- visible light
- solid phase extraction
- silver nanoparticles
- reduced graphene oxide
- drug delivery
- highly efficient
- minimally invasive
- healthcare
- molecularly imprinted
- risk assessment
- coronary artery bypass
- metal organic framework
- gold nanoparticles
- gas chromatography
- health risk
- high resolution
- anti inflammatory
- health risk assessment
- atomic force microscopy
- cancer therapy
- percutaneous coronary intervention
- climate change
- coronary artery disease
- sewage sludge
- surgical site infection
- drug release
- high efficiency