Hydrogen production from water splitting using TiO2 /CoS composite photocatalyst

Mutia Agustina, and Moridon, Siti Nurul Falaein and Amilia Linggawati, and Khuzaimah Arifin, and Lorna Jeffery Minggu, and Mohammad Kassim, (2022) Hydrogen production from water splitting using TiO2 /CoS composite photocatalyst. Sains Malaysiana, 51 (10). pp. 3251-3259. ISSN 0126-6039


Official URL: https://www.ukm.my/jsm/malay_journals/jilid51bil10...


Photocatalytic water splitting reaction has been considered an ideal method for hydrogen generation. In this study, a composite of TiO2 /CoS photocatalyst prepared by hydrothermal synthesis method assisted by ball milling crushing process was used. The TiO2 /CoS composites prepared with three variation compositions of 90/10, 80/20, and 70/30 were named M-10, M-20, and M-30, respectively. Field-emission scanning electron microscopy images showed that the morphologies of the composites were porous and uniform of nanospheres. The X-ray diffraction and energy dispersive spectroscopy analyses confirmed the presence of CoS in the composites. Ultraviolet–visible absorption characterization demonstrated the smallest bandgap value of approximately 2.72 eV presented by sample M-30 with the photocurrent density of 0.32 mA cm−2 at 0.9 V vs. Ag/AgCl. The presence of CoS in this study could increase the PC hydrogen generation of TiO2 by nearly 2.5 times. The composites forming a p-n heterojunction between TiO2 and CoS could prevent electron–hole recombination and increase the overall photoactivity of TiO2. .

Item Type:Article
Keywords:Composite; Hydrogen production; Hydrothermal; Water splitting
Journal:Sains Malaysiana
ID Code:20869
Deposited By: ms aida -
Deposited On:20 Dec 2022 01:27
Last Modified:22 Dec 2022 08:48

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