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Synthesis and characterisation of TiO2/graphene nanocomposite N. R. Dhineshbabu, M.Selvam, P.Prabu, R.Yuvakkumar and V.Rajendran

Centre for Nanoscience and Technology, K.S.R College Of Technology, Thiruchengode, Namakkal (Dt) -637 215, Tamilnadu, India. Email: babudhinesh2009@gmail.com Abstract Titania (TiO2) nanoparticles (NPs) were prepared by wet chemical method by using 2-propanol, titanium isopropoxide as precursors and graphene were prepared from graphite by electro deposition method. The composision of two precusors and make a nanocomposite of TiO2/graphene using wet chemical method. The crystalline structures of prepared TiO2 /graphene NPs were revealed using Xray diffraction (XRD). The stretching and bending nature of synthesised NPs were explored using Fourier transform infrared spectroscopy (FTIR). Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) studies were confirmed that the prepared NPs were spherical in shape with an average particle size range from 20-85 nm.

Introduction

Optical Analysis

Electrical and mechanical properties, and high

FTIR Characterisation

surface area make graphene a novel substrate for

The appearance

forming hybrid structures with a variety of

relate to TiO2.

nanomaterials

peak

Graphene hybrids with metal oxides (TiO2) have

attributed to the O–H stretching vibrations of

reported in many applications like antibacterial

C12H28O4Ti

C3H8O

at the range of 3000–3500 cm-1 which is

the C–OH groups and water

activity, dye synthesized solar cell and photocatalysis

Experimental Procedure

of the peaks at 703.5cm-1

GO presents

Fig 2:FTIR spectrum for TiO2/Graphene NPs

the peaks of C–O–C (1224cm-1),

C–OH (1368 cm-1), C=O (1705 cm-1).

Structural Analysis

wetchemical

XRD Characretisation The structure of the crystal is anatase phase for TiO2 NPs and hybrid of graphene presented in the

Ti(OH)2

peak position of 25.37(highest), 54.31(lowest). JCPDS card No. 21-1272.

Graphene

The average size of the crystalline size is 7nm. Fig 3: XRD patterns for TiO2/Graphene NPs

Graphene hybrid on Ti(OH)2 solution

Morphological Analysis Graphene

Sintered 673 K TiO2/graphene NPs Fig 1: synthesis for TiO2/Graphene NPs Morphology structure Spherical morphology are obtained in the SEM and

TiO2

TEM image . Fig 4: SEM Images for TiO2/Graphene NPs Fig 5: TEM Images for TiO2/Graphene NPs

Conclusion A simple wet chemical method was used to prepare TiO2/Graphene NPs with the spherical morphology with small agglomeration. The characterisation of TiO2/Graphene NPs were studied by FTIR, XRD and SEM and TEM. XRD results show that the crystalline size is 7nm. The study of TiO 2/Graphene NPs on UV shielding. CENTRE FOR NANO SCIENCE AND TECHNOLOGY K.S.RANGASAMY COLLEGE OF TECHNOLOGY

P12-32  

nanopaprika poster 2012

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