Silver-Modified β-Cyclodextrin Polymer for Water Treatment: A Balanced Adsorption and Antibacterial Performance
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School of Carbon Neutrality Future Technology, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
2
State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
*
Author to whom correspondence should be addressed.
Academic Editors: Layla Ben Ayed, Eleni Golomazou, Panagiotis Karanis, Patrick Scheid, Ourania Tzoraki, Anna Lass and Muhammad Shahid Iqbal
Water 2021, 13(21), 3004; https://doi.org/10.3390/w13213004
Received: 29 September 2021
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Revised: 20 October 2021
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Accepted: 21 October 2021
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Published: 26 October 2021
(This article belongs to the Topic Emerging Solutions for Water, Sanitation and Hygiene)
Water pollution caused by organic pollutants and pathogenic microorganism is a critical issue. In this study, we reported a silver-modified β-cyclodextrin polymer (CD-CA/PDA-Ag) used for the removal of dyes and the suppression of microorganisms from water. In order to avoid silver nanoparticles agglomeration, the material was first coated with polydopamine (PDA) on β-cyclodextrin matrix, whose reducing catechol groups subsequently immobilized silver ions in situ to form uniformly dispersed silver nanoparticles. CD-CA/PDA-0.5Ag displayed a high adsorption capacity of methylene blue (535.93 mg/g), which is mainly attributed to electrostatic interactions, host-guest inclusions and π-π bond stacking effects. Furthermore, both diffusion inhibition zone tests and colony formation unit tests were investigated, which showed excellent antimicrobial capability on Escherichia coli (E. coli) and Staphylococcus aureus (S. auerus). Overall, CD-CA/PDA-Ag proved to have an excellent adsorption capacity and antibacterial performance, which provides a great potential in water purification.
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Keywords:
cyclodextrin polymer; adsorption; antibacterial; polydopamine; nano-silver
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MDPI and ACS Style
Wang, X.; Chen, H.; Wang, J.; Zhou, Y.; Cui, C.; Zhou, Y. Silver-Modified β-Cyclodextrin Polymer for Water Treatment: A Balanced Adsorption and Antibacterial Performance. Water 2021, 13, 3004. https://doi.org/10.3390/w13213004
AMA Style
Wang X, Chen H, Wang J, Zhou Y, Cui C, Zhou Y. Silver-Modified β-Cyclodextrin Polymer for Water Treatment: A Balanced Adsorption and Antibacterial Performance. Water. 2021; 13(21):3004. https://doi.org/10.3390/w13213004
Chicago/Turabian StyleWang, Xin, Huafeng Chen, Jianyu Wang, Yi Zhou, Changzheng Cui, and Yanbo Zhou. 2021. "Silver-Modified β-Cyclodextrin Polymer for Water Treatment: A Balanced Adsorption and Antibacterial Performance" Water 13, no. 21: 3004. https://doi.org/10.3390/w13213004
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