Award

The Photocatalysis group has been awarded the title of the symbol of the synergy of science and business 2019.

Job offer!

We are looking for a researcher to work in TEAM project “In quest of a more efficient quantum solar energy exploitation in energy downhill and uphill photocatalytic processes (INGENIOUS)”.

The job offer can be downloaded from here.

 

Visiting professor

Our group becomes more and more international. For one month we will host Prof. Minoru Mizuhata from Kobe University. During his stay at our faculty, the professor will conduct two courses entitled “Ceramics prepared by low-temperature synthesis-soft solution process” and “Structure and properties of electrolyte solution”.

Podobny obraz

Scientific cooperation

The cooperation with Prof. Janusz Nowotny and Prof. Tad Bak reaches new level – Marcin Kobielusz spends two month as a visiting reasercher in School of Computing, Engineering and Mathematics, Western Sydney University.

Thesis defended

Marcin Surówka  has got his PhD degree. Congratulation!

Photocatalytic Degradation of Herbicides at Titanium(IV) Oxide Modified with Metal Salts and Oxides

The doctoral thesis was focused on environmental problems related to contamination of water with herbicides: 2,4-D and 2,4,5-T. One of the most promising methods for water purification is heterogeneous photocatalysis. In this work a wide library of photocatalysts based on titanium(IV) oxide was synthetized. They were modified with different amounts (0.01-0.50%mol metal:Ti) of salts and oxides of following metals: Fe, Co, Ga, Bi, W, Mo, V and Ni. The materials were calcined at three chosen temperatures and characterised structurally and spectroscopically with XRD, UV-vis/DRS and photocurrent measurements. Their photocatalytic activity was investigated in the processes of terephthalic acid oxidation and herbicides and azure B degradation. Based on these studies the most favourable synthesis parameters were proposed: small modifier content and middle chosen calcination temperature, which result in both anatase and rutile presence in the final material. The most significant conclusion stated in this work is confirmation of indirect influence of modifiers on the photocatalytic activity of the materials. The role of modifiers is mostly observed during the photocatalyst synthesis – they influence the anatase to rutile ratio, being the main factor determining the overall photocatalytic activity of TiO2. Therefore, such modifiers are regarded as TiO2-synthesis-steering factors.