Abstract

Biohydrogen is regarded as the most promising new generation of green energy. However, the low yield and high cost of biohydrogen restrict its production on a large scale. Nanomaterials have demonstrated outstanding potential for improving biohydrogen production due to their unique photoelectrochemical properties. Some metal nanoparticles are used to promote biohydrogen production in dark fermentation (biohydrogen increased by 5.4–230 %). The state-of-the-art involves using metal or nonmetal photosensitizers to build extracellular or intracellular photo-biohybrid systems with microorganisms, which can be driven by light to efficiently produce biohydrogen (increased by 1.29–8.6 times). This review has summarized in detail the application status and working principle of metal nanoparticles in dark fermentation, the light-assisted biohydrogen production performance, and the mechanism of the extracellular and intracellular photo-biohybrid system. Next, the toxicity and biocompatibility modifications of nanoparticles were discussed. Finally, we proposed the key issues that should be prioritized in the long-term development of biohydrogen.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.