Physical Properties of Reduced Graphite Oxide Prepared via Chemical Reduction by Using Ammonia solution as a Reducing Agent

International Conference on Materials Engineering and Science

Hussain, Intesar R.^1,2 ; Radiah, A.B. Dayang^2 ; Kamil, Faten H.^2,3 ; Yasinb, F. Mohd^2 ; Kamarudinb, S.^2 ; Yusoff, H.M.^2

State Commission for Dams and Reservoir, Ministry of Water Resources, Baghdad, Iraq^1

Department of Chemical and Environmental Engineering, Universiti Putra Malaysia Selangor, Malaysia^2

Chemical and Petrochemical Research Center, Commission for Research and Industrial Development, Ministry of Industry and Minerals, Baghdad, Iraq^3

关键词: Ammonia solution;    Chemical oxidation;    Chemical reduction;    Graphite oxide;    Graphite powder;    Low cost manufacturing;    Microscale liquid;    Reduced graphite oxides;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012136/pdf
DOI  :  10.1088/1757-899X/454/1/012136

来源: IOP

【 摘 要 】

This research studied the synthesis of graphite oxide and reduced graphite oxide via a low- cost manufacturing method. The process started with the chemical oxidation of commercial graphite powder into graphite oxide by Staudenmaier's method, followed by the chemical reduction of graphite oxide in ammonium hydroxide vapor. Subsequently, graphite oxide and reduced graphite oxide were assembled into a thin film, and microscale liquid droplets were placed into the film surface for measurement of wettability and contact angle. It is found that a graphite oxide sheet is hydrophilic while a reduced graphite oxide is hydrophobic with a contact angle equal to 120°C and 53°C respectively.