Influence of iron (II) oxide nanoparticle on biohydrogen production in thermophilic mixed fermentation

Nurul Sakinah Engliman, Peer Mohamed Abdul, Shu Yii Wu, Jamaliah Md Jahim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The effect of initial pH, metal oxide and concentration of nanoparticles (NP) on hydrogen production were investigated in batch assays using glucose-fed anaerobic mixed bacteria in thermophilic condition of 60 °C. Two type of metal oxide nanoparticles, iron (II) oxide and nickel oxide, were tested and both metal capable of increasing the hydrogen yield about 34.38% and 5.47% higher than the control test. The experiments on the effect of initial pH were done without adding the nanoparticles to determine the optimum pH for maximum hydrogen production, in which at pH 5.5, the maximum hydrogen yield has reached about 1.78 mol H2/mol glucose. However, at pH 5.5 and the optimal iron (II) oxide concentration of 50 mg/L, the maximum hydrogen yield has reached to 1.92 mol H2/mol glucose, and the hydrogen content was 51%. Furthermore, the analysis of metabolites has indicated that the hydrogen production follows the acetic acid pathway. In all experiments with metal oxide nanoparticles, the metal NP was not consumed by the microbes, and the amount of it at the end of the fermentation was similar to the starting amount, which can be concluded that it was acting as an enhancer to the system to improve the hydrogen production. These results suggest that the addition of iron (II) oxide nanoparticles in the system is the vital factor to enhance the hydrogen production.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
DOIs
Publication statusAccepted/In press - 3 Feb 2017

Fingerprint

fermentation
Hydrogen production
Iron oxides
iron oxides
Fermentation
hydrogen production
Nanoparticles
nanoparticles
Glucose
Hydrogen
glucose
metal oxides
Iron
Metals
Oxides
hydrogen
iron
Nickel oxide
Metal nanoparticles
Metabolites

Keywords

  • Anaerobic mixed bacteria
  • Biohydrogen production
  • Nanoparticles (NPs)
  • Thermophilic

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Influence of iron (II) oxide nanoparticle on biohydrogen production in thermophilic mixed fermentation. / Engliman, Nurul Sakinah; Abdul, Peer Mohamed; Wu, Shu Yii; Md Jahim, Jamaliah.

In: International Journal of Hydrogen Energy, 03.02.2017.

Research output: Contribution to journalArticle

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