Title: Graphene Oxide and Graphene  Intercalation Complexes with Nanoparticles and their Structure.
SPEAKER：Prof. Dr. Imre Dékány, Member of Hung. Acad. Sci. (2001-),Dept. of Physical Chemistry and Material Sciences, University of Szeged, Hungary
TIME：Friday, October 24,  10:00 a.m.
ROOM：Five-floor Lecture Hall  HUAXUE A　BUILDING  (化学A楼五楼演讲厅)

INVITER：Prof. Yaping ZHAO (赵亚平教授)

Abstract: Graphene oxide (GO) was prepared by oxidation of graphite using strog acidic medium. The structure of the GO was determined by XRD and FTIR methods. Specific surface area was determined by BET and liquid sorption experiments and the total surface  was calculated. The intercalation of cationic surfactants was examined and the surface hydrophobization was characterized by adsorption excess isotherms. The layer silicates show similar properties to the GO intercalation complexes and also the surface hydrophobicity can be determined by liquid sorption excess isotherms Noble metal nanoparticles were synthetized in the interlamellar space of the GO samples due to reduction process. The diameters of nanoparticles can be determined by XRD and SAXS experiments and their catalytical application in liquid phase will be discussed.

If we used diluted suspension from the GO we can produce self assembled GO- semi conductor systems ( CdS, TiO2) preparing ultrathin nanohybrid films. Photocatalytical properties of GO/TiO2 nanocomposite films will be discussed as well.


Prof. Imre Dékány’s Curriculum Vitae

Imre Dékány is full professor of chemistry, head of the Supramolecular and Nanostructured Materials Research Group of Hung. Acad. Sci. on University of Szeged in Hungary. He is Professor on the Department of Physical Chemistry and Materials Sciences at Univ. Szeged. He is member of Hungarian Academy of Sciences since 2001. His research interest covers colloid and interface chemistry and nanostructured materials. He is member of the editorial board of Advances in Colloid and Interface Science.

Personal Information:
Name: Imre Dékány
Date of Birth: 09. Dec. 1946, Place: Szeged, Hungary
Permanent (home) Address: 6722 Szeged, Nemestakács u. 10.

Office Address: University of Szeged, Dept. of  Medical Chemistry, Faculty of Medicine  Education: Chemistry, JATE University Szeged, Hungary, (1965-70)  Doctor of Science, D.Sc. Hung.Acad.Sci. (1989) 

Member of Hung. Acad. Sci. (2001-) Work Experience: Research Assistant (1970-72), Assistant Professor (1972-80), Associate Professor (1980-90), Full Professor (1990-2008) at the Department of Colloid Chemistry and Dept. of Physical Chemistry and Materials Sciences (2008-...) Head of the Supramolecular and Nanostructured materials Research Group of Hung. Acad. of Sci.( 2011-2015) at Dept. of Medical Chemistry, Faculty of Medicine Knowledge of Languages: English, German Research Interests: Preparation and characterization of nanostructured materials, ( nanoparticles and core-shell composites an graphene derivatives) and thin hybrid films. Biofunctionalized gold and silver nanoparticles, plasmonic materials. Biosensors and biomarkers. Self-cleaning surfaces, photocatalysis. Colloids and polymers.  Publications: 375 in referred journals, 25 patents, 475 abstracts of lectures or posters