Facile synthesis of magnetic activated carbon/β-cyclodextrin polymers composite and application for the adsorption of methylene blue from wastewater
Year: 2025
Type: article
Abstract: Dye wastewater pollutes aquatic ecosystems, has toxic effects on aquatic organisms and can enter the human body through the food chain, causing potential health hazards. Magnetic ferrite-based adsorbents have attracted a lot of attention because they combine the advantages of magnetic materials and adsorbent materials. In this study, the activated carbon (AC) was crosslinked with Fe3O4 nanoparticles and β-cyclodextrin polymer (β-CDP) by a simple method to obtain MAC/β-CDP biosorbent, which can effectively remove methylene blue (MB). The specific surface area of MAC/β-CDP was 434 m2 g−1 by nitrogen adsorption desorption method. The MAC/β-CDP composite shown good adsorption capacity. The optimal adsorption conditions were determined as follows: initial pH = 8, MAC/β-CDP dosage (0.2 g/50 mL), contact time (180 min) and the removal rate of cationic dye reached more than 97.14%. In addition, the maximum adsorption capacity of MAC/β-CDP composite for MB (50 mL) was 1.21 mg g−1, and the adsorption isotherm curve followed Langmuir (R2 = 0.9621) and Freundlich (R2 = 0.9982) models. In addition, after three cycles of regeneration, the regeneration rate of MAC/β-CDP was 96.76%. These results demonstrate the potential of MAC/β-CDP in the practical removal of MB pollutants in wastewater.
Source: Figshare
Authors: Wang, Qiang, Chang, Xinyi, Wang, Yifan, Yu, Qian, Xu, Lingzi, Kong, Xianming
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6902280575
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