Comparative effect of silver nanoparticles (AgNPs) derived from actinomycetes and henna on biohydrogen production by Clostridium beijerinckii (KTCC1737)

Imran Khan, Parthiban Anburajan, Gopalakrishnan Kumar, Jeong Jun Yoon, Ashutosh Bahuguna, Alana Gandra Lima de Moura, Arivalagan Pugazhendhi, Sang Hyoun Kim, Sun Chul Kang

Research output: Contribution to journalArticlepeer-review

Abstract

The current study comparatively evaluated the effects of silver nanoparticles (AgNPs) on fermentative bio hydrogen (bio-H2) production by Clostridium beijerinckii (KTCC1737). Green synthesized AgNPs were fabricated using henna (Lawsonia inermis) and DU-C2 actinomycete in batch using different AgNPs concentrations (0, 40, 80, and 120 μg/mL). The overall results revealed that after 72 hours of AgNPs incubation with C beijerinckii, the henna mediated AgNP synthesis increased the hydrogen production rate with a hydrogen yield of 1.71 mol H2/mol glucose added. However, the DU-C2-mediated AgNps synthesis inhibited bio-H2 production during the batch H2 fermentation. Performed live/dead staining showed AgNPs effect on the bacterial culture in batch fermentation. The results indicated that the henna mediated AgNPs enhanced the bacterial cell population, meanwhile, in case of DU-C2 AgNPs, less bacterial population occurred. Thus, the present study provides a clear overview on the application of metallic NPs as H2 production catalysts to further improve bio-H2 production.

Original languageEnglish
JournalInternational Journal of Energy Research
DOIs
Publication statusAccepted/In press - 2020

Bibliographical note

Funding Information:
National Research Foundation of Korea, Grant/Award Numbers: NRF‐2020R1A2B5B02001757, NRF‐2019M3E6A1103839 Funding information

Funding Information:
The research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (Ministry of Science and ICT) (Nos. NRF‐2019M3E6A1103839 and NRF‐2020R1A2B5B02001757). Moreover, we thank Prof. Jung Won Yoon, Daegu University, South Korea, for his technical support on our manuscript.

Publisher Copyright:
© 2020 John Wiley & Sons Ltd

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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