Open AccessPreyssler‐based nanocomposite as a magnetic photocatalyst: synthesis, characterisation and its photocatalytic activity for decolourisation of rhodamine B
Author(s) -
Bamoharram Fatemeh F.,
Mozhdehi AmirMohammad,
Radfar Azadeh,
Shaker Mohammad,
Mallaeke Hassan,
Sharifi Amir Hossein
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.2018.5030
Subject(s) - photocatalysis , rhodamine b , nanocomposite , materials science , scanning electron microscope , transmission electron microscopy , nuclear chemistry , chemical engineering , rhodamine , catalysis , nanoparticle , nanotechnology , chemistry , composite material , fluorescence , organic chemistry , optics , physics , engineering
In this work, the authors prepared a novel magnetic photocatalyst by grafting of Preyssler‐type polyoxometalate, H 14 [NaP 5 W 30 O 110 ] onto Fe 3 O 4 nanoparticles via an internal layer of silver nanoparticles. The obtained nanocomposite has been characterised by electron dispersive X‐ray, transmission electron microscopy and scanning electron microscopy. The activity of the synthesised nanomagnetic photocatalyst was tested by the photocatalytic decolourisation of rhodamine B under UV light irradiation in the study's designed reactor. It was found that, compared to pure Preyssler, decolourisation of rhodamine B was occurred four times faster using the synthesised magnetic nanocomposite with easy separation. The magnetic nanocatalyst was separated after ending the reaction and recycled. It just showed 2–3% decrease in catalytic activity after four recycling.