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Article

Preparation and Characterization of High-Efficiency Magnetic Heavy Metal Capture Flocculants

College of Urban Construction, Nanjing Tech University, Nanjing 211800, China
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Academic Editor: Margaritis Kostoglou
Water 2021, 13(13), 1732; https://doi.org/10.3390/w13131732
Received: 14 May 2021 / Revised: 19 June 2021 / Accepted: 20 June 2021 / Published: 23 June 2021
In this study, a high-efficiency magnetic heavy metal flocculant [email protected] was prepared based on carboxymethyl chitosan and magnetic Fe3O4. It was characterized by SEM, FTIR, XPS, XRD and VSM, and the Cu(II) removal rate was used as the evaluation basis for the preparation process. The effects of AMPS content, total monomer concentration, photoinitiator concentration and reaction time on the performance of [email protected] flocculation to remove Cu(II) were studied. The characterization results show that [email protected] has been successfully prepared and exhibits good magnetic induction characteristics. The synthesis results show that under the conditions of 10% AMPS content, 35% total monomer concentration, 0.04% photoinitiator concentration, and 1.5 h reaction time, the best yield of [email protected] is 77.69%. The best removal rate is 87.65%. In addition, the response surface optimization of the synthesis process of [email protected] was performed. The optimal synthesis ratio was finally determined as iron content 6.5%, CMFS: 29.5%, AM: 53.9%, AMPS: 10.1%. High-efficiency magnetic heavy metal flocculant [email protected] shows excellent flocculation performance in removing Cu(II). This research provides guidance and ideas for the development of efficient and low-cost flocculation technology to remove Cu(II) in wastewater. View Full-Text
Keywords: magnetic flocculation; heavy metal; response surface method; model optimization magnetic flocculation; heavy metal; response surface method; model optimization
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MDPI and ACS Style

Yu, Y.; Sun, Y.; Zhou, J.; Chen, A.; Shah, K.J. Preparation and Characterization of High-Efficiency Magnetic Heavy Metal Capture Flocculants. Water 2021, 13, 1732. https://doi.org/10.3390/w13131732

AMA Style

Yu Y, Sun Y, Zhou J, Chen A, Shah KJ. Preparation and Characterization of High-Efficiency Magnetic Heavy Metal Capture Flocculants. Water. 2021; 13(13):1732. https://doi.org/10.3390/w13131732

Chicago/Turabian Style

Yu, Yuanyuan, Yongjun Sun, Jun Zhou, Aowen Chen, and Kinjal J. Shah 2021. "Preparation and Characterization of High-Efficiency Magnetic Heavy Metal Capture Flocculants" Water 13, no. 13: 1732. https://doi.org/10.3390/w13131732

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