Photocatalytic activity of hydrothermally synthesized Al2O3graphene nanocomposite

International Fundamentum Science Symposium 2018

自然科学;工业技术

Isa, Nur Farihah Mohamad^1 ; Yusoff, Nik Raihan Nik^2 ; Razali, Mohd Hasmizam^3 ; Yusoff, Mahani^1

Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Jeli Campus Locked Bag 100, Jeli, Kelantan

17600, Malaysia^1

Faculty of Earth Science, Universiti Malaysia Kelantan, Jeli Campus Locked Bag 100, Jeli, Kelantan

17600, Malaysia^2

School of Fundamental Sciences, Universiti Malaysia Terengganu, Terengganu Kuala Terengganu

21030, Malaysia^3

关键词: Al2O3 contents;    Graphene nanoplatelets;    Hydrothermally synthesized;    Internal strains;    Methyl Orange;    Photocatalytic activities;    Visible light;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/440/1/012017/pdf
DOI  :  10.1088/1757-899X/440/1/012017

来源: IOP

【 摘 要 】

In this study, Al2O3-graphene nanoplatelets (GNP) nanocomposite was evaluated on its properties and performance towards methyl orange (MO) dye. Al2O3-GNP nanocomposite was prepared by conventional hydrothermal at 200°C for 24 h. The result showed the crystallite size of Al2O3 is decreased and internal strain increased with the increased GNP content. The particle size of nanocomposite becomes larger with the increment GNP amount in the nanocomposite. Nanocomposite with lower graphene contents (20 wt%) and higher Al2O3 contents performed (80 wt%) the optimum for the MO absorption with efficiency of 75% in visible light.