Recent graphene oxide/TiO2 thin film based on self-cleaning application

International Conference on Innovative Research - ICIR EUROINVENT 2019

Azani, A.^1 ; Che Halin, D.S.^1 ; Razak, K.A.^1 ; Abdullah, M.M.A.B.^1 ; Salleh, M.A.A.M.^1 ; Mahmed, N.^1 ; Ramli, M.M.^1^2 ; Azhari, A.W.^3 ; Chobpattana, V.^4

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis, (UniMAP), Jalan Kangar-Arau, Perlis

02600, Malaysia^1

School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis, Arau

02600, Malaysia^2

Water Research Group (WAREG), School of Environmental Engineering, Universiti Malaysia Perlis, Arau, Perlis

02600, Malaysia^3

Department of Materials and Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi (RMUTT), Thailand^4

关键词: Charge separations;    Electrical conductivity;    Electroconductivity;    Film surfaces;    Indoor applications;    Superhydrophilic property;    TiO2 thin films;    Wettability tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/572/1/012079/pdf
DOI  :  10.1088/1757-899X/572/1/012079

来源: IOP

【 摘 要 】

Graphene oxide/TiO2 (GO/TiO2) thin films works as self-cleaning device have been developed in various method onto selected substrates. It was noticeable that graphene oxide is the best form in the group of graphene family. Under self-cleaning application, the wettability test and electroconductivity of the sample was the main characteristic for self-coating study. As planned, by addition of graphene to TiO2 films produce a highly conductivity, transparent and produced promising enhanced photocatalytic activities. Moreover, superhydrophilic properties of GO/TiO2 film surface film exhibits more as compared to TiO2 film only within a short period of time. Thus under this finding, the photocatalytic activity of GO/TiO2 films will be enhance as a result of improve charge separation efficiency because of the electron injection to graphene from TiO2 conduction band. Other factor that contribute to self-cleaning activity is the electrical conductivity of the graphene added to TiO2 thin film. The graphene added to TiO2 films have a lot of potential in various indoor application due to its fantastic characteristics such as not expensive, transparent, highly conductive, exhibits superhydrophilic properties, and very much photocatalytically active.