Enhance pore structure of cyanobacteria-based porous carbon by polypropylene to improve adsorption capacity of methylene blue. (January 2022)

• Record Type: Journal Article
• Authors: Li, Lixin; Lv, Ying; Wang, Jie; Jia, Chao; Zhan, Zhaoshun; Dong, Zilong; Liu, Lilai; Zhu, Xiangdong
• Is Part Of: Bioresource technology. Volume 343(2022)
• Publication Date: 2022-01
• Subjects: Porous carbon -- Pore structure -- Polypropylene plastic -- Activation temperature -- Activator; 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.2021.126101
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: A porous carbon was prepared from Microcystis aeruginosa and polypropylene. Polypropylene enhanced the pore structure of porous carbon. Porous carbon exhibited a high SBET (2140 m 2 /g) and abundant functional groups. Porous carbon exhibited a high methylene blue adsorption capacity (667 mg/g). Abstract: Porous carbon obtained by co-pyrolysis of plastic and biomass has received a lot of attention due to its excellent adsorption properties, and the pore structure plays an essential role in adsorption performance, however, the pore structure is still not well understood. Herein, we synthesized cyanobacteria-based porous carbon derived from cyanobacteria and polypropylene plastic by one-step method. CPC-800–30% exhibited a high BET surface area (2140 m 2 /g), pore volume up to 1.44 cm 3 /g. PP not only improved the pore structure of porous carbon, but also enriched the types of functional groups, such as O–H, N–H, C=O, and –CH, due to dehydroxylation or amino group decreased, resulting in the hydrogen radicals increased, hence PP had positive effect for biomass during co-pyrolysis. Meanwhile, CPC-800–30% showed excellent methylene blue (MB) adsorption capacity (667 mg/g). This work provided a new strategy for enhancing porous carbon structure via using PP as additive.