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Construction of oxime-functionalized PCN-222 based on the directed molecular structure design for recovering uranium from wastewater

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Abstract

The directed construction of productive adsorbents is essential to avoid damaging human health from the harmful radioactive and toxic U(VI)-containing wastewater. Herein, a sort of Zr-based metal organic framework (MOF) called PCN-222 was synthesized and oxime functionalized based on directed molecular structure design to synthesize an efficient adsorbent with antimicrobial activity, named PCN-222-OM, for recovering U(VI) from wastewater. PCN-222-OM unfolded splendid adsorption capacity (403.4 mg·g−1) at pH = 6.0 because of abundant holey structure and mighty chelation for oxime groups with U(VI) ions. PCN-222-OM also exhibited outstanding selectivity and reusability during the adsorption. The XPS spectra authenticated the -NH and oxime groups which revealed a momentous function. Concurrently, PCN-222-OM also possessed good antimicrobial activity, antibiofouling activity, and environmental safety; adequately decreased detrimental repercussions about bacteria and Halamphora on adsorption capacity; and met non-toxic and non-hazardous requirements for the application. The splendid antimicrobial activity and antibiofouling activity perhaps arose from the Zr63-O)43-OH)4(H2O)4(OH)4 clusters and rich functional groups within PCN-222-OM. Originally proposed PCN-222-OM was one potentially propitious material to recover U(VI) in wastewater on account of outstanding adsorption capacity, antimicrobial activity, antibiofouling activity, and environmental safety, meanwhile providing a newfangled conception on the construction of peculiar efficient adsorbent.

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All data generated or analyzed during the study have been included in this manuscript and its supplementary information files.

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Funding

This work was financially supported by the National Natural Science Foundation of China (51373044), University and Local Integration Development Project of Yantai (2022 XDRHXMXK08), and the Fundamental Research Funds for the Central Universities, China (3072022QBZ2703). The authors are grateful for the support.

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Authors and Affiliations

Authors

Contributions

Changlong Bi: writing original draft, validation, formal analysis, and investigation.

Chunhong Zhang: conceptualization, methodology, validation, investigation, resources, writing, review, editing, supervision, and project administration.

Chao Wang: validation, formal analysis, methodology, resources, and supervision.

Lien Zhu: validation, formal analysis, software, and visualization.

Ruiqi Zhu: validation, formal analysis, and software.

Lijia Liu: validation, formal analysis, software, methodology, and visualization.

Yudan Wang: validation, formal analysis, methodology, resources, and supervision.

Fuqiu Ma: validation, formal analysis, methodology, and supervision.

Hongxing Dong: resources, project administration, and formal analysis.

All the authors listed have approved this manuscript.

Corresponding author

Correspondence to Chunhong Zhang.

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This manuscript is approved by all authors for publication in Environmental Science and Pollution Research.

Competing interests

The authors declare no competing interests.

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Responsible Editor: Tito Roberto Cadaval Jr

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Highlights

1. New adsorbent PCN-222-OM was developed based on directed molecular structure design.

2. PCN-222-OM had good environmental safety and antimicrobial and antibiofouling activity.

3. PCN-222-OM showed outstanding U(VI) adsorption capacity; Qe reached 403.4 mg·g−1.

4. Adsorption mechanism was the co-effect of coordination and electrostatic interaction.

5. PCN-222-OM possessed great potential to efficiently recover U(VI) from wastewater.

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Supplementary file1 (DOCX 2570 KB)

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Bi, C., Zhang, C., Wang, C. et al. Construction of oxime-functionalized PCN-222 based on the directed molecular structure design for recovering uranium from wastewater. Environ Sci Pollut Res 31, 16554–16570 (2024). https://doi.org/10.1007/s11356-024-32208-1

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  • DOI: https://doi.org/10.1007/s11356-024-32208-1

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