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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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.
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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