National Research Development Corporation
Technology offer
A Process for Manufacturing of Graphene from Waste Plastic
Plastic products have made life easier
for people
living throughout the globe. However, plastics also
have numerous disadvantages. Plastic products after
their use are carelessly disposed by consumers in the
environment and become solid waste.
Solid waste creates several harmful environmental and
health effects and its proper disposal and management
is a huge challenge for the society. Plastic degradation
in nature is very slow and a piece of plastic may last for
several hundred years. Disposed Plastic bags and
bottles increase the volume of waste dumped or burned
in dumpsites and landfills. Burning of these waste
plastic causes environmental pollution.
Graphene Powder
Mostly, solid waste consists of a carbonic framework of
atoms having millions of layers; thus, it can be
converted into useful products like, graphene.
This technology provide a solution for solid waste
management problem and promote waste to wealth
program, a much-needed impetus to India's recycling
industry.
Hexagonal structure of
Graphene nanosheets
The technology offers a simple and novel process for the manufacturing of Graphene from
waste plastic. Graphene and other high value added products are manufactured through an
eco-friendly process by recycling waste plastic.
The waste plastics is recycled to produce nearly about 12-15% fine quality carbon nano
materials (Graphene), 25-40% value added fuels and 15-25 % gaseous fuels.
Brief Description
The present technology offers recycling of waste plastics into value-added product, graphene
nanosheets (GNs) and their subsequent applications in dye sensitized solar cells (DSSCs)
and supercapacitors.
The waste plastic is recycled by two step pyrolysis process at different temperatures in an
inert atmosphere of Nitrogen gas to obtain graphene nanosheets. The GNs with few layers
were confirmed by the RAMAN spectroscopy, XRD and HRTEM analyses.
The GNs thus synthesized from plastic waste may be used for the fabrication of DSSCs and
supercapacitors. The DSSC fabrication with GNs as part of photo-anode with polymeric
electrolyte showed a high fill factor and high Voc, which were also supported by the
computational findings.
On the other hand, the utilization of GNs as an active layer material of supercapacitor
electrodes offered a high specific capacitance. Thus, the waste plastics can be economically
recycled through this process utilising low energy and conserving the ecology and
environment.
Advantages
Indigenously developed process for the synthesis of carbon Nano materials, high value
added fuel and anti skidding additives for the concrete mixture and efficient materials
for water purification
The process is low-cost, energy efficient and environment friendly
Salient Features of the Technology





The technology has been patented
Graphene nanosheets can be employed
for the application of water technology to
develop advance water filters. Few grams
of graphene nanosheets are sufficient to
remove all the organic dyes, heavy metals
and other impurities.
It can be employed for the application of
Supercapacitor in electric vehicles.
Graphene nanosheets can be used for
cement composites.
Carbon Nano materials can also be used
in the applications like, Polymer
nanocomposites; Fuel Cells; Bio-imaging;
Tyres; Additives; Paints; Conducting inks; Space etc.
For Further Details Please Contact:
Dr. Ashish Kumar Srivastava
Senior Manager
National Research Development Corporation (NRDC)
(An Enterprise of DSIR, Ministry of Science & Technology, Govt. of India)
20-22, Zamroodpur Community Centre,
Kailash Colony Extension,
New Delhi: 110048
Phone
: +91-11-29240401-07 Extn. 321
Fax
: +91-11-29242409-10
Mobile
: +91-11-9818995833
E-mail
: asrivastava@nrdc.in; asrivastava.nrdc@gmail.com
Website
: http://www.nrdcindia.com