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Volume 5, Issue 5
Res. Rev. J Mat. Sci. 2017
ISSN: 2321-6212
Advanced Materials 2017
September 07-08, 2017
September 07-08, 2017 | Edinburgh, Scotland
Advanced materials & Processing
11
th
International Conference on
One pot synthesis of acid doped polypyrrole and investigation of its visible light driven dye degradation and
room temperature ferromagnetic properties
Sanchayita Nag
1
, Amrita Ghosh
2
, Dipankar Das
3
, Anup Mondal
2
,
and
Sampad Mukherjee
1
1
Department of Physics, IIEST, India
2
Department of Chemistry, IIEST, India
3
UGC-DAE Consortium for Scientific Research, India
I
n the present work, HCL- doped polypyrrole was prepared by the oxidative-polymerization [1] method. X-ray diffraction pattern
depicts a broad amorphous peak centered around 2 = 23o, corresponding to scattering from the bare polymer chain [2].TEM images
revealed the sheet like morphology of the sample. The visible light driven photo degradation of Rhodamine B (RhB) and Methylene
Blue (MB) dyes were carried out to study the photocatalytic performance of the sample. Field dependent room temperature M-H
behavior of the sample was also studied. In both cases, the sample showed 99.99% degradation of the dyes at around 25 minutes. The
sample showed a trace of ferromagnetism at room temperature (RT-FM) with coercivity around 120 Oe and saturation magnetization
around 1.5X10-
3
emu/gm. For nonmagnetic polypyrrole, this observation is a bit striking. This phenomena may be correlated to the
defect related ferromagnetism as generally observed in chemically synthesized graphene or its nanocomposites [3]. Simultaneously,
in the case of conducting polymers, the process of doping (intercalation) breaks the double bond of the polymeric chain and produces
a positively charged defect and a dangling bond. These two factors results the formation of a positive polaron. The ferromagnetic
ordering of polarons may induce ferromagnetism into the sample.
Biography
Sanchayita Nag has expertise in synthesis and characterization of nano ferrites, along with synthesis of graphene and polymer based ferrite composites. Her major
interest is mainly focused on the characterization of the synthesized materials for several possible applications like magnetic, photocatalytic as well as dielectric.
Her continuous efforts in the concerned field have created new possibilities for the multifunctional applications of organic nanoferrite composites.
sanchoyita.nag@live.comSanchayita Nag et al., Res. Rev. J Mat. Sci. 2017, 5:5
DOI: 10.4172/2321-6212-C1-006
Figure1:
In situ polymerization of polypyrrole