Sweet-Potato-Vine-Based High-Performance Porous Carbon for Methylene Blue Adsorption

In this study, sweet-potato-vine-based porous carbon (SPVPC) was prepared using zinc chloride as an activating and pore-forming agent. The optimised SPVPC exhibited abundant porous structures with a high specific surface area of 1397.8 m g . Moreover, SPVPC exhibited excellent adsorption characteris...

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Published in:Molecules (Basel, Switzerland) Switzerland), 2023-01, Vol.28 (2), p.819
Main Authors: Zhang, Wenlin, Zhao, Yuhong, Liao, Qinhong, Li, Zhexin, Jue, Dengwei, Tang, Jianmin
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Aqueous solutions
Biomass
Carbon
Cellulose
Communication
Dyes
Graphene
Hydrocarbons
Industrial wastewater
Kinetics
Membrane separation
Methylene blue
Morphology
Pore formation
Pore size
porous carbon
Potatoes
sweet potato vine
Synergistic effect
Wastewater treatment
Zinc chloride
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Summary:In this study, sweet-potato-vine-based porous carbon (SPVPC) was prepared using zinc chloride as an activating and pore-forming agent. The optimised SPVPC exhibited abundant porous structures with a high specific surface area of 1397.8 m g . Moreover, SPVPC exhibited excellent adsorption characteristics for removing methylene blue (MB) from aqueous solutions. The maximum adsorption capacity for MB reached 653.6 mg g , and the reusability was satisfactory. The adsorption kinetics and isotherm were in good agreement with the pseudo-second-order kinetics and Langmuir models, respectively. The adsorption mechanism was summarised as the synergistic effects of the hierarchically porous structures in SPVPC and various interactions between SPVPC and MB. Considering its low cost and excellent adsorption performance, the prepared porous carbon is a promising adsorbent candidate for dye wastewater treatment.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28020819