Comparison of magnetite/reduced graphene oxide nanocomposites and magnetite nanoparticles on enhancing hydrogen production in dark fermentation

Sun, Yuankui; Ma, Yunqian; Zhang, Baoyong; Sun, Hao; Wang, Na; Wang, Lu; Zhang, Jinlong; Xue, Rong

doi:10.1016/j.ijhydene.2022.05.073

Cited by 12 publications

(9 citation statements)

References 49 publications

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“…Similarly, Sun et al obtained the largest H 2 yield of 272.2 mL/g glucose amended by 400 mg/L manganese ferrite NPs, which was slightly higher than that of this study . Moreover, NPs entered the cell and increase intracellular ET, thereby accelerating the synthesis of bioH 2 . Nonetheless, there are still some difficulties in comparison to the H 2 yields, mainly due to their different additives and anaerobes in DF systems.…”

Section: Resultscontrasting

confidence: 53%

“…Table 3 provides the increased value of different materials on the total bioH 2 yield when DF was performed with glucose as substrate, indicating that this experiment was at a higher level of bioH 2 synthesis. 21,24,25,36 Cao et al 21 used alkali-based magnetic nanosheets (AMNSs) (100 mg/L) to increase H 2 yield via DF and obtained the highest yield of 232.8 mL/g glucose, being lower than that (259.67 mL/g glucose) from this work. 21 Similarly, Sun et al 25 obtained the largest H 2 yield of 272.2 mL/g glucose amended by 400 mg/L manganese ferrite NPs, which was slightly higher than that of this study.…”

Section: Characterization Of Nico 2 Omentioning

confidence: 65%

“…The moderate amount of NiCo 2 O 4 NPs (400 mg/L) could facilitate bioH 2 generation, and the largest H 2 production of 259.67 mL/g glucose was reached at the addition of 400 mg/L, which increased by 33.97%, matching with the control yield (193.82 mL/g glucose). Table provides the increased value of different materials on the total bioH 2 yield when DF was performed with glucose as substrate, indicating that this experiment was at a higher level of bioH 2 synthesis. ,,, …”

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

“…A previous work reported that NPs may attach to bacteria and interact with structural proteins on the membrane in bioH 2 synthesis via DF. 21,36 A further increase in NiCo 2 O 4 NPs (more than 400 mg/L) resulted in a decrease in H 2 yield. The production of H 2 was 188.14 mL/g glucose when the dosage of NiCo 2 O 4 NPs up to 800 mg/L, which reduced to 97% of the control yield.…”

Section: Characterization Of Nico 2 Omentioning

confidence: 99%

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Nickel–Cobalt Oxide Nanoparticle-Induced Biohydrogen Production

Wang²,

Tian

et al. 2022

ACS Omega

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The positive effects of metal oxide nanoparticles (NPs) on dark fermentation (DF) for biohydrogen synthesis have been increased, and the mechanism still needs to be further revealed. In this study, nickel–cobalt oxide (NiCo2O4) NPs were prepared to increase H2 yield via DF. The highest (259.67 mL/g glucose) and the lowest (188.14 mL/g glucose) yields were achieved at 400 and 800 mg/L NiCo2O4 NPs added, respectively, with their corresponding 33.97% increase and 2.93% decrease compared with the control yield (193.82 mL/g glucose). Meanwhile, the microbial community further confirmed that NiCo2O4 NPs increased the abundance of the dominant H2-producing Clostridium sensu stricto 1 by 23.05%. The gene prediction also showed that NiCo2O4 NPs increased the abundance of genes encoding the rate-limiting enzyme pyruvate kinase in glycolysis, thus increasing the substrate conversion. Moreover, the gene abundance of key enzymes directly related to H2 evolution was also increased at different levels.

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Section: Resultscontrasting

confidence: 53%