通过光催化将二氧化碳转化为甲烷来提高沼气的转化率

IF 23.2 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Advanced Composites and Hybrid Materials Pub Date : 2024-06-27 DOI:10.1007/s42114-024-00926-2
Ziyu Wang, Mingyu Gou, Qiyuan Zheng, Haiyu Xu, Saad Melhi, Zeinhom M. El-Bahy, Eman Ramadan Elsharkawy, Yan Dang, Bin Qiu
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引用次数: 0

摘要

本研究采用自组装方法将半导电性硫化镉(CdS)纳米粒子涂覆在树皮甲烷菌(Methanosarcina barkeri)表面,形成树皮甲烷菌-CdS生物杂化物。事实证明,它是一种有效的选择性催化剂,可在太阳能驱动下将 CO2 转化为 CH4,从而实现厌氧消化沼气的升级。研究人员对合成的生物杂化物的理化性质进行了表征,并考察了各种条件对生物杂化物产生 CH4 的影响。结果表明,CdS 的用量、pH 值、半胱氨酸和碳酸氢钠的浓度是影响生物混合物性能的关键因素。此外,还观察到在光照和黑暗条件下都能产生 CH4。最后,讨论了该生物杂交种在光照和黑暗条件下产生 CH4 的机理。 图解摘要Methanosarcina barkeri-硫化镉生物杂交种能有效地将二氧化碳转化为甲烷,实现沼气升级。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Enhanced biogas upgrading by photocatalytic conversion of carbon dioxide to methane by Methanosarcina barkeri–cadmium sulfide biohybrid

The semiconductive cadmium sulfide (CdS) nanoparticles were coated on the surface of Methanosarcina barkeri (M. barkeri) by self-assembly method to form the M. barkeri-CdS biohybrid in this work. It proved to be an effective and selective catalyst for the solar-driven conversion of CO2 to CH4, enabling the upgrading of biogas from anaerobic digestion. The physicochemical properties of the synthesized biohybrid were characterized, and the effect of various conditions on the CH4 production of the biohybrid was also investigated. It was revealed that the CdS dosage, pH, cysteine, and concentration of sodium bicarbonate were key factors influencing the performance of the biohybrid. Additionally, it was observed that CH4 was produced under both light and dark conditions. Finally, the mechanisms involved in the CH4 production by the biohybrid under light and dark conditions were discussed.

Graphical abstract

Methanosarcina barkeri–cadmium sulfide biohybrid can effectively convert carbon dioxide to methane, achieving biogas upgrading.

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来源期刊
CiteScore
26.00
自引率
21.40%
发文量
185
期刊介绍: Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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