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Polymer Congress 2018
Polymer Sciences
ISSN: 2471-9935
Page 30
June 04-05, 2018
London, UK
4
th
Edition of International Conference on
Polymer Science and
Technology
T
he present investigation reports the greener synthesis and
characterization of acrylic acid grafted biopolymer chitosan/
TiO
2
based nanocomposites. The nanocomposites formed
from metal/metal oxide nanoparticles and polymers showed the
improvement in material properties such as electrical, chemical
or biochemical properties along with permeability and selectivity.
The polymeric and inorganic hybrid materials can be tailored
to have the desired applications. The eco-friendly synthesis
of amphoteric chitosan was done by grafting of acrylic acid to
chitosan in presence of potassium persulfate by free radical
polymerization. The grafted chitosan was further employed to
synthesize nanocomposite by in situ reaction with semiconductor
TiO
2
prepared from titanium butoxide using ultrasonication
cavitation technique. FT-IR spectroscopy, XRD, EDX and thermal
analysis techniques were employed to characterize synthesized
CA (acrylic acid/chitosan) and CATN (CA/TiO
2
). The change in
surface morphology was evident from appearance of uniform
globular particles of synthesized hybridmaterial instead of cloudy
flakes of grafted chitosan. The homogenous distribution of metal
oxide nanoparticles in CA/TiO
2
hybridmaterial was achieved from
grafted acrylic acid/ chitosan containing weak anionic group
(-COOH) which lead to the coiling of the polymeric chains around
TiO
2
. The response of polymeric nanocomposite, CATN was
investigated for degradation of dyes often present in the effluents
of textile industries. Malachite green was selected as model
dye to assess the photocatalytic efficiency using solar light.
The degradation kinetics was studied by monitoring the photo
catalytic reaction by employing spectrophotometric technique.
The rate constant of reaction for degradation of malachite green
was found to be 7.13x10-3min-1. The current research work
opens vistas for the new dimensions in area of water treatment
by solving the issues related to degradation reaction efficiency in
visible light and cost effectiveness.
Recent Publications
1. Moon Y E (2013) Poly (vinyl alcohol)/poly (acrylic
acid)/TiO
2
/graphene oxide nanocomposite hydrogels
for pH-sensitive photocatalytic degradation of organic
pollutants. Materials Science and Engineering: B.
178:1097-1103.
2. Bet Moushoul et al. (2016) TiO
2
nanocomposite based
polymeric membranes: a review on performance
improvement for various applications in chemical
engineering processes. Chemical Engineering Journal.
283:29-46.
3. Sharotri N and Sud D (2017) Studies on visible light
induced photocatalysis by synthesized novel Mn-S co-
doped TiO
2
for remediation of pollutants. Separation
and Purification Technology. 183. Doi: 10.1016/j.
seppur.2017.03.053.
4. Hou C et al. 2017. Preparation of TiO
2
nanoparticles
modified electrospun nanocomposite membranes
toward efficient dye degradation for wastewater
treatment. Journal of the Taiwan Institute of Chemical
Engineers. 78:118-126.
5. Bhullar N, Kumari K and Sud D (2017) Studies on
chitosan-based superhydrophilic adsorbent for
phasing out Rhodamine 6G dye and Cd2+ ions from
aqueous solutions. Desalination and Water Treatment.
95:3 55-364.
Biography
Dhiraj Sud is a Professor of Chemistry and currently working in the area of
nanophotocatalysis and development of hybrid materials for various appli-
cations in particular for environmental remediation. She has expertise in
design, synthesis and characterization of nonmaterial as well as polymeric
materials. Another area of her interest is in reaction kinetics andmechanism
of photo catalytic reactions by tracking the reaction pathway. Besides teach-
ing inorganic chemistry to post graduate students, she has also contributed
in development of education and research as Dean Academics. She has
more than 80 publications in international journal of repute and presented
her research in number of national and international conferences. She also
had written many chapters and two books. She has worked on sponsored
research projects in the area of photo catalysis, adsorption technology and
for treatment of industrial effluents. She has guided ten PhD students and
many postgraduate student projects.
suddhiraj@yahoo.comAcrylic acid grafted biopolymer chitosan/TiO
2
based
nanocomposite for application in solar light induced
photocatalytic degradation
Dhiraj Sud, M Bahal
and
Nidhi Sharotri
Sant Longowal Institute of Engineering and Technology, India
Dhiraj Sud et al., Polym Sci 2018, Volume 4
DOI: 10.4172/2471-9935-C2-011
Figure 1:
Synthesis of CATnanocomposite for photocatalytic degradation of organic
pollutants