Berlin 2018 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 7: Heterogeneous Catalysis: Experiment
O 7.7: Vortrag
Montag, 12. März 2018, 12:00–12:15, MA 141
Preparation and catalytic properties of chitosan supporting sliver-based composite — •Yuhan Wu1, Yang Xu1, Chenglin Zhang1, Zhiyong Liu2, and Yong Lei1 — 1Institut für Physik & IMN MacroNano (ZIK), Technische Universität Ilmenau, 98693, Ilmenau, Germany — 2School of Chemistry & Chemical Engineering, Shihezi University, 832003 Shihezi, P. R. China
In this study, we reported two novel silver-based composite, Ag nanoparticles/N-doped carbon composite (Ag/NC) and Ag/AgCl loaded N-doped carbon composite photocatalyst (Ag/AgCl/NC). At first, Ag/NC was fabricated by a facile and green one-step hydrothermal treatment, during this progress the environmentally benign and renewable natural chitosan was used as not only reducer and stabilizer, but also as a nitrogen source and carbon source. Secondly, Ag/AgCl/NC composite photocatalyst was synthesized via in situ oxidation reaction by adding FeCl3. The Ag/NC and Ag/AgCl/NC were characterized using X-ray diffraction, transmission electronic microscopy, energy dispersive X-ray spectra, UV-visible diffused reflectance spectra, X-ray photoelectron spectroscopy and nitrogen adsorption-desorption measurements, respectively. The obtained two kinds of composite exhibited superior catalytic activity and stability for the degradation of organic contaminants.