Polydopamine-modification of a magnetic composite constructed from citric acid-cross-linked cyclodextrin and graphene oxide for dye removal from waters.

Autor: Hu QD; School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China., Jiang HL; School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330069, China., Lam KH; Centre for Medical and Industrial Ultrasonics, James Watt School of Engineering, University of Glasgow, Glasgow, Scotland, UK., Hu ZP; School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang, 330069, China., Liu ZJ; School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China., Wang HY; School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China., Yang YY; School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China., Baigenzhenov O; Department of Metallurgical Engineering, Satbayev University, Almaty, Kazakhstan., Hosseini-Bandegharaei A; Faculty of Chemistry, Semnan University, Semnan, Iran., He FA; School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, China. he-fu-an@163.com.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2023 Jul; Vol. 30 (32), pp. 78521-78536. Date of Electronic Publication: 2023 Jun 05.
DOI: 10.1007/s11356-023-27679-7
Abstrakt: The effect of polydopamine (PDA) modification on aminated Fe 3 O 4 nanoparticles (Fe 3 O 4 -NH 2 )/graphite oxide (GO)/β-cyclodextrin polymer cross-linked by citric acid (CDP-CA) composites were studied for the removal of a cationic dye (methylene blue, MB) and an anionic dye (Congo red, CR) from waters. The micro-structural and magnetic characterizations confirmed the successful preparation of Fe 3 O 4 -NH 2 /GO/CDP-CA and PDA/Fe 3 O 4 -NH 2 /GO/CDP-CA composites. The maximum MB and CR adsorption capacities of Fe 3 O 4 -NH 2 /GO/CDP-CA were 75 mg/g and 104 mg/g, respectively, while the corresponding amounts for PDA/Fe 3 O4-NH 2 /GO/CDP-CA composite were 195 mg/g and 64 mg/g, respectively. The dye sorption behaviors of these two composites were explained by their corresponding surface-charged properties according to the measured zeta potential results. Moreover, the high saturation magnetizations and the stable dye removal rate in the adsorption-desorption cycles indicated the good recyclability and reusability of the fabricated composites.
(© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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