Manganese Ferrite Nanoparticle-Assisted Enhancement of Photosynthetic Carbon Sequestration in Microalgae

Tiantian Chen, Xinyi Wang, Xinyue Zhu, Hengxuan Shao, Wanqing Wang, Wei Hua, Na Zhang, Shuang Wu, Roger Ruan, Cheng Zhou () and Yanling Cheng ()
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Tiantian Chen: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Xinyi Wang: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Xinyue Zhu: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Hengxuan Shao: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Wanqing Wang: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Wei Hua: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Na Zhang: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Shuang Wu: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Roger Ruan: Center for Biorefining, Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA
Cheng Zhou: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China
Yanling Cheng: Beijing Key Laboratory of Biomass Waste Resource Utilization, School of Biochemical Engineering, Beijing Union University, Beijing 100023, China

Sustainability, 2025, vol. 17, issue 10, 1-24

Abstract: With increasing global greenhouse gas emissions, carbon dioxide (CO 2 ) reduction and fixation has become an important issue for global environmental protection. The use of microalgae photosynthesis to fix CO 2 is a green method to reduce carbon emissions. This can also realize the resourceful use of carbon, which is in line with a sustainable development strategy. This study addresses the problem of limited light absorption and utilization efficiency of microalgae. This can result in low photosynthetic carbon sequestration efficiency. How to enhance the photosynthetic carbon sequestration performance of microalgae is the core of this study. We constructed a microalgae carbon sequestration reaction system and added manganese ferrite nanomaterials to the microalgae reaction system to improve the photosynthetic carbon sequestration efficiency of the microalgae. The results show that the addition of 90 mg/L of manganese ferrite nanoparticles offered a significant growth advantage for microalgae. This increased the photosynthetic reaction activity by promoting the electron transfer rate. This significantly enhanced the photosynthetic carbon fixation efficiency of the microalgae, when held under a 40% CO 2 environment. The results of this study may provide a possible breakthrough for microalgal carbon sequestration. This may advance the feasibility of industrial applications for microalgal carbon sequestration.

Keywords: microalgae; nanomaterials; green emission reduction; fixation of high CO 2 concentration (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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