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Efficient Degradation of Ciprofloxacin via Peroxymonosulfate Activation over a Hierarchically Porous Cu–Ti Alloy Manufactured by 3D Printing

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    Efficient Degradation of Ciprofloxacin via Peroxymonosulfate Activation over a Hierarchically Porous Cu–Ti Alloy Manufactured by 3D Printing
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    • Sheng Guo
      Sheng Guo
      State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, P.R. China
      School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
      More by Sheng Guo
    • Xizi Gao
      Xizi Gao
      State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, P.R. China
      More by Xizi Gao
    • Yao Huang
      Yao Huang
      School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
      More by Yao Huang
    • Runhua Zhou
      Runhua Zhou
      Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 CleanTech Loop, Singapore 637141, Singapore
      More by Runhua Zhou
    • Fengxi Chen*
      Fengxi Chen
      State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, P.R. China
      *Tel.: +86 13545296051; Fax: +86 27 59367810. E-mail: [email protected]
      More by Fengxi Chen
      Orcidhttps://orcid.org/0000-0002-1097-2036
    • Chao Cai*
      Chao Cai
      State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
      *[email protected]
      More by Chao Cai
      Orcidhttps://orcid.org/0000-0003-1917-6367
    • Kun Zhou*
      Kun Zhou
      Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 CleanTech Loop, Singapore 637141, Singapore
      School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
      *[email protected]
      More by Kun Zhou
      Orcidhttps://orcid.org/0000-0001-7660-2911
    • Rong Chen
      Rong Chen
      State Key Laboratory of New Textile Materials & Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, P.R. China
      School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
      More by Rong Chen
      Orcidhttps://orcid.org/0000-0003-1455-5093
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    ACS ES&T Water

    Cite this: ACS EST Water 2024, XXXX, XXX, XXX-XXX
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    https://doi.org/10.1021/acsestwater.4c00383
    Published July 2, 2024
    © 2024 American Chemical Society
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    Abstract

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    3D printed alloy catalysts have garnered significant attention in water purification due to their high efficiency, adaptable structure, and easy recovery. Here, a straightforward and cost-effective three-dimensional (3D) printing strategy is adopted to synthesize a copper–titanium (Cu–Ti) alloy for ciprofloxacin (CIP) degradation through peroxymonosulfate (PMS) activation. The resulting 3D Cu–Ti alloy, characterized by a hierarchical porous structure, exhibits the highest removal efficiency of 90.55% for CIP degradation, surpassing that of commercial Cu and Ti powders under similar conditions. Capture experiments and electron paramagnetic resonance measurements reveal the involvement of •OH, 1O2, SO4•–, and O2•– in the degradation of CIP, with •OH and 1O2 playing dominant roles. The presence of Ti not only promotes Cu(I)/Cu(0) and Cu(II)/Cu(I) cycling but also facilitates the activation of dissolved oxygen in water, thereby reducing its reaction with PMS and preventing corrosion, ultimately rendering the 3D–Cu-Ti/PMS alloy excellent catalytic activity and reusability. Additionally, bean sprout growth experiments indicate a remarkable reduction in the toxicity of CIP degradation products. The utilization of 3D printing technology for the construction of a Cu–Ti alloy offers a promising strategy for the removal of CIP through PMS activation.

    © 2024 American Chemical Society

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsestwater.4c00383.

    • Details of the morphology of the mixed powders, PMS decomposition curves, CIP degradation in the Cu2+/PMS and 3D–Cu-Ti/PMS systems, degradation efficiency of CIP in different systems, XRD patterns of pristine and used 3D–Cu-Ti, SEM images of 3D–Cu-Ti before and after degradation, CIP degradation in nitrogen atmosphere, effects of EDTA and HA on CIP degradation, ultraviolet–visible spectra of periodate solution (PDF)

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    Cited By

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    This article is cited by 1 publications.

    1. Sheng Guo, Yifu Ding, Kun Zhou. 3D-Printing Technologies for Environmental and Water Applications. ACS ES&T Water 2024, 4 (9) , 3611-3613. https://doi.org/10.1021/acsestwater.4c00780
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    ACS ES&T Water

    Cite this: ACS EST Water 2024, XXXX, XXX, XXX-XXX
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acsestwater.4c00383
    Published July 2, 2024
    © 2024 American Chemical Society
    Request reuse permissions

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