Enhanced photocatalytic hydrogen production from water-ethanol solution by Ruthenium doped La-NaTaO3

2nd International Conference on Oleo and Petrochemical Engineering

Husin, H.^1 ; Alam, P.N.^1 ; Zaki, M.^1 ; Sofyana^1 ; Jakfar^1 ; Husaini^2 ; Hasfita, F.^3

Department of Chemical Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^1

Department of Mechanical Engineering, Syiah Kuala University, Darussalam, Banda Aceh

23111, Indonesia^2

Department of Chemical Engineering, Malikussaleh University, Lhoekseumawe, Aceh Utara

24300, Indonesia^3

关键词: Average particle size;    Electron hole pairs;    Ethanol aqueous solutions;    Impregnation methods;    Photocatalytic hydrogen production;    Photocatalytic reactions;    Production of hydrogen;    Water ethanol solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/345/1/012003/pdf
DOI  :  10.1088/1757-899X/345/1/012003

来源: IOP

【 摘 要 】

The photocatalytic hydrogen production from ethanol aqueous solution, with the use ruthenium doped La-NaTaO3has been investigated. Ruthenium doped La-NaTaO3catalysts are prepared by impregnation method. The catalysts are by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The Ru co-catalyst demonstrated from the TEM image shows a good dispersion on the surface of La-C-NaTaO3with an average particle size between 4-5 nm. The photocatalytic reaction is carried out in a closed reactor with a gas circulation system. The catalytic activity of La-NaTaO3improved markedly (6.6 times from pure water) when Ru is loaded onto its surface. The hydrogen production is notably enhanced in the presence of ethanol as electron donors. This result is much higher when compared with the rate of hydrogen production in the sample without co- catalysts about 9.4 times higher after Ru deposition from ethanol aqueous solution. Increasing the production of hydrogen on the Ru/La-NaTaO3closely related to the decrease in recombination between electron-hole pairs.