The synthesis of new materials for photocatalytic water purification - superparamagnetic, photocatalytic, nanocomposite particles - was presented at a specialized scientific conference. We presented both procedures for the materials synthesis developed in the framework of the project: the method based on the hetero-agglomeration of the previously synthesized anatase and maghemite nanoparticles in their suspensions and the method based on coating the anatase layer onto the agglomerates of the maghemite nanoparticles using the hydrolysis of TiOSO4.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 24285991Our original concept for the preparation of photocatalytic, superparamagnetic nanocomposite particles for the decomposition of pollutants in water was presented for the first time. The focus was on the assembly of the magnetic carriers using the controlled agglomeration of the superparamagnetic Fe2O3 nanoparticles in aqueous suspensions. The prepared agglomerates enable effective magnetic separation.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 22970919The synthesis of agglomerates using the controlled hetero-agglomeration of superparamagnetic nanoparticles in suspensions was presented at a scientific conference. The agglomerates are much more effective in the magnetic separation compared to individual (nano)particles. The presented method used for the assembly agglomerates is relatively simple and can be scaled up for the industrial production of magnetic carriers that will be cheap enough for simple mass applications, for example, in the photocatalytic purification of polluted water or in the preparation of drinking water.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 23687719The influence of the nanoparticles’ size on their photocatalytic activity of anatase was presented. The nanoparticles were synthesized using the hydrolysis of aqueous TiOSO4 and subsequently coarsened by a hydrothermal treatment. In contrast to the literature data it appeared that the smallest, as-synthesized nanoparticles with a size of approximately 6 nm showed the strongest photocatalytic activity.
F.02 Acquisition of new scientific knowledge
COBISS.SI-ID: 22969895A young researcher Stanislav Čampelj, finished his PhD thesis. The major part of the PhD was related to the topic of the project. He studied the possibilities for the surface treatment of maghemite superparamagnetic nanoparticles. The surface treatment is used to engineer the electric charge at the surfaces of nanoparticles, which is crucial for the preparation of magnetic agglomerates and superparamagnetic, photocatalytic nanocomposite particles using hetero-agglomeration in suspensions.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 251875328