Advanced carbon sequestration by the hybrid system of photobioreactor and microbial fuel cell with novel photocatalytic porous framework. (August 2021)

• Record Type: Journal Article
• Authors: Huang, Dong; Li, Ming-Jia; Wang, Rui-Long; Yang, Yi-Wen; Tao, Wen-Quan
• Is Part Of: Bioresource technology. Volume 333(2021)
• Publication Date: 2021-08
• Subjects: Low concentration CO2 -- Photocatalytic porous framework -- Chlorella -- Dissolved organic carbon -- Microbial fuel cell; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2021.125182
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: CO2 sequestration of the proposed hybrid system approach to 22%. Photocatalytic porous framework is non-toxic to Chlorella . Carbon black, CNT, and g-C3 N4 /TiO2 are coated on frameworks. Hybrid system can not only capture CO2 but also generate electricity. Abstract: A new hybrid system is proposed to capture CO2 as well as generate electricity with the low CO2 inlet condition of confined space. Within the system, a novel photocatalytic porous framework coated by g-C3 N4 /TiO2 is prepared to avoid the inhibition of microalgae growth caused by the direct addition of photocatalyst. Under 0.8% v/v CO2 inlet condition, chemical oxygen demand (COD) yields from the photocatalytic framework immersed in the phosphate buffer and the algae suspension are 1.63 mg L −1 h −1 and 1.90 mg L −1 h −1, respectively. CO2 sequestration rate of a 60L cylindrical photobioreactor increases from 12% to 22%. The combination modes between photobioreactor and photocatalytic framework can be selected flexibly depends on the demands of application. This hybrid system not only benefits to enhance the CO2 sequestration rate of photobioreactor but also has the potential to be served as the power source in a confined space.