Microstructure and Wettability of Graphene Oxide/TiO2 Thin Film Prepared via Sol-gel Method

Joint Conference on Green Engineering Technology & Applied Computing 2019

工业技术（总论）;计算机科学

Azani, Azliza^1 ; Suriyani Che Halin, Dewi^1 ; Abdul Razak, Kamrosni^1 ; Mustafa Al Bakri Abdullah, Mohd^1 ; Arif Anuar Mohd Salleh, Mohd^1 ; Mahmed, Norsuria^1 ; Mahyiddin Ramli, Muhammad^1^2 ; Sepeai, Suhaila^3

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^1

School of Microelectronic Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

Solar Energy Research Institute, National University of Malaysia, Selangor, Malaysia^3

关键词: Annealed films;    Annealing process;    Coated films;    Glass substrates;    Hydrophilic/hydrophobic;    Titanium Isopropoxide;    Water contact angle;    Wettability tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/551/1/012099/pdf
DOI  :  10.1088/1757-899X/551/1/012099

来源: IOP

【 摘 要 】

The microstructure of graphene oxide TiO2 (GO/TiO2) films on wettability and morphology properties were studied at different amount of Titanium isopropoxide with fixed amount of GO. GO/TiO2 thin films were prepared by using sol-gel method and deposited on glass substrate by spin-coating technique. The formation of GO/TiO2 was confirmed by using Fourier Transform Infrared Spectroscopy (FTIR) study while the morphology of GO/TiO2 was observed by Scanning Electron Microscopy (SEM) analysis. The hydrophilic/hydrophobic interactions of these films were examined by wettability test by measuring the water contact angle of the water drop on the surface of the coating. The wettability tests display that the contact angle of GO/TiO2 was increased from 90.0 to 118.7 after reduce the amount of titanium isopropoxide (TTIP). A small peaks of graphene and Ti were observed in the coated films and more pronounce peaks occur after the films were annealed. However, it was found that the annealing process does not improve the contact angle of the films as compared to the non-annealed films.