MOF incorporated photo-fermentation system with improved biohydrogen efficiency

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL International Journal of Hydrogen Energy Pub Date : 2024-11-12 DOI:10.1016/j.ijhydene.2024.11.132

Yinggang Jiao , Yameng Li , Yang Zhang , Muhammad Adnan Sami Khan , Fang Yin , Shengnan Zhu , Quanguo Zhang , Pedram Fatehi , Zhiping Zhang

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Abstract

Catalyst addition has been considered an effective pathway to enhance biohydrogen yield in biochemical reaction processes. In this study, the metal-organic framework material (MOF-808) was selected to enhance the mechanism of photo-fermentation biohydrogen production (PFHP) of corn stover. The results showed that MOF-808 coagulated with bacteria (Proteobacteria) to form an efficient proton transport interface and improved the reducibility of the fermentation solution in the PFHP system. At 0.5 g/L MOF-808 dosage, the cumulative hydrogen yield was 84.59 mL/g TS, and the hydrogen production rate was 20.1 mL/h, which were 30.5% and 39.6% higher than those of the control group, respectively. The maximum energy recovery rate and light conversion efficiency were increased by 28.9% and 39.3%, respectively. In addition, MOF-808 significantly impacted the composition of the microbial community, fostering the production of hydrogen through acid metabolism. Even during the secondary cycle, it still maintained stable catalytic activity.

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含有 MOF 的光发酵系统可提高生物制氢效率

催化剂添加一直被认为是生化反应过程中提高生物产氢量的有效途径。本研究选择了金属有机框架材料（MOF-808）来增强玉米秸秆光发酵生物制氢（PFHP）的机理。结果表明，MOF-808 与细菌（变形菌）凝结成一个高效的质子传输界面，提高了 PFHP 系统中发酵液的还原性。在 MOF-808 用量为 0.5 g/L 时，累积产氢量为 84.59 mL/g TS，产氢速率为 20.1 mL/h，分别比对照组高出 30.5%和 39.6%。最大能量回收率和光转换效率分别提高了 28.9% 和 39.3%。此外，MOF-808 还显著影响了微生物群落的组成，通过酸代谢促进了氢的产生。即使在二次循环期间，它仍能保持稳定的催化活性。

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.