Partner: J. Grzonka


Ostatnie publikacje
1.Lisowski P., Colmenares J., Masek O., Lisowski W., Lisovytskiy D., Grzonka J., Kurzydłowski K., Design and Fabrication of TiO2/Lignocellulosic Carbon Materials: Relevance of Low-temperature Sonocrystallization to Photocatalysts Performance, The European Society Journal for Catalysis, ISSN: 1867-3899, DOI: 10.1002/cctc.201800604, Vol.10, No.16, pp.3469-3480, 2018

Streszczenie:

We present a facile and green approach to produce crystalline TiO2 nanoparticles on a surface of different carbonaceous materials derived from lignocellulosic biomass such as STARBON-800® obtained by carbonization at 800 °C and biochar-SWP700 (Soft Wood Pellets (SWP) obtained by pyrolysis at 700 °C) via novel low-temperature ultrasound-promoted green methodology coupled with citric acid as a cross-linking agent. In comparison to other methods, the developed method has several significant benefits such as simplicity, great ability to get crystalline TiO2 particles (elimination of high-temperature treatment (material calcination at >300 °C) needed in the conventional sol-gel method, which is extremely important in transforming amorphous TiO2 into a photoactive crystalline phase) elimination of risky chemicals and oxidizing agent, and also ability to change some parameters (e. g. ultrasound intensity). Prepared materials were characterized by XRD, DR UV−vis, N2 physisorption, HR-XPS, XRF, HR-TEM, FT-IR and subsequently tested for their photocatalytic activities both in photocatalytic phenol degradation (in water) and oxidation of methanol (in air) under UV and visible light irradiation.

Afiliacje autorów:

Lisowski P.-other affiliation
Colmenares J.-other affiliation
Masek O.-other affiliation
Lisowski W.-other affiliation
Lisovytskiy D.-other affiliation
Grzonka J.-other affiliation
Kurzydłowski K.-Politechnika Warszawska (PL)
35p.