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PhD Defense by Yang Shen

Yang Shen, Department of Chemistry and Bioscience will defend his thesis on: "Graphene oxide based membranes for water filtration”"

Time

29.03.2019 kl. 13.00 - 15.00

Description

TITLE:

"Graphene oxide based membranes for water filtration”

ABSTRACT:

Graphene oxide (GO) is a fantastic material, which is an oxidized form of graphene. With its unique two-dimension structure (single-atom-thick layer) and outstanding properties (e.g. high molecular selectivity), GO has been applied in many research fields, such as water purification membranes, sensors, semiconductors, drugs carrier and catalysis.

With the similar graphene-like structure, one of the most attractive features of GO is that these functional groups could be easily removed from GO through chemical or thermal reduction methods to convert the GO into graphene, while the fabrication of graphene is very expensive.

Besides being the intermediate for graphene production, the other attractive feature of GO is that its interlayer distance expands to 0.70 nm from 0.34 nm of graphite. Moreover, the existence of the functional groups turns lamellar carbon into hydrophilic so that GO would allow water to be adsorbed into layers. Thus, this behavior could be applied in water separation technologies

The goal of this PhD project is to investigate the structural and chemical evolution of GO during thermal treatment and to explore the potential of reduced GO (rGO) materials in membrane applications.

SUPERVISOR:

  • Professor Yungzheng Yue, Dept. Chemistry and Bioscience, AAU, Denmark

ASSESSMENT COMMITTEE:

  • Associate Professor Thorbjørn Terndrup Nielsen (Chairman),  Dept. Chemistry and Bioscience, AAU, Denmark
  • Associate Professor Gloria Berlier,Department of Chemistry, Turin University, Italy
  • Senior Scientist Bhaskar Reddy Sudireddy, Department of Energy Conversion and Storage, Technical University of Denmark

AFTER THE DEFENSE A SMALL RECEPTION WILL BE HELD AT FREDRIK BAJERS VEJ 7H. 

Price

Free

Host

Department of Chemistry and Bioscience, AAU, Section of Chemistry

Address

Fredrik Bajers Vej 7H, 9220 Aalborg Ø, room number: 2.303-2.309

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