Open AccessPolydopamine‐functionalised graphene–Fe 3 O 4 –Ag magnetic composites with high catalytic activity and antibacterial capability
Author(s) -
Du Liqiang,
Guo Aiying,
Cai Aijun
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0593
Subject(s) - graphene , catalysis , x ray photoelectron spectroscopy , materials science , transmission electron microscopy , degradation (telecommunications) , scanning electron microscope , antibacterial activity , chemical engineering , composite material , nuclear chemistry , nanotechnology , chemistry , organic chemistry , bacteria , biology , genetics , telecommunications , computer science , engineering
Polydopamine‐functionalised graphene–Fe 3 O 4 –Ag composites (PGFA) were fabricated using a facile method. The morphology, structure, and chemical components of PGFA are investigated using various techniques, including X‐ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, and X‐ray photoelectron spectroscopy. PGFA exhibits high catalytic activity for the degradation of p ‐nitrophenol. Furthermore, PGFA presents excellent catalytic stability and can be reused successfully for 14 cycles, maintaining high degradation efficiency (>98%). Antibacterial tests show that PGFA offers significant antibacterial potential against E. coli and S. aureus .