| |
| |
| |
| |
| |
| |
|
Slit geometry microreactor for light induced photocatalysis with graphite carbon nitride thin films
Dolai, Susmita
We have demonstrated a facile, controllable, scalable and efficient new method for synthesizing carbon nitride materials with morphology and optimizing their catalytic performance in microreactor and cuvette. History and different structures and classification of carbon nitride materials also properly explained in this review. Different organic pollutant degradation and hydrogen generation performance are shown for carbon nitride materials, as per as their catalytic activities and properties.
Plný tet: PDF
|
|
What happens to microplastics in nature
Spáčilová, Markéta
This work was focused on preparation of microplastic particles which correspond to microplastics in the environment. The five most used plastics (polyethylene, polyamide, polytetrafluoroethylene, polyethylene glycol terephthalate, and polystyrene) were used for preparation. Microplastics were prepared by grinding common used plastics to match the actual microplastics present in the environment as closely as possible. The shape and size of the prepared particles\nwere obtained by scanning electron microscopy. Raman and infrared spectroscopy were used to characterize the microplastic structures. Simultaneously, methodology to determine the amount of microplastic particles in simulated water samples was developed.
Plný tet: PDF
|
|
Continuous electrocoagulation of Chlorella vulgaris in a novel channel-flow reactor
Lucáková, Simona
In our laboratory, we employed an electrocoagulation process with iron sacrificial anode leading to the separation of Chlorella vulgaris cells with high efficiency and at the same time acceptable low contamination of separated biomass by iron. Comparing to only centrifugation, the total energy costs of harvesting using electrocoagulation as a pre-concentration step prior to centrifugation were reduced by more than 80%. After extensive study of the influence of relevant process parameters.
Plný tet: PDF
|
| |